Question about Cadillac DeVille

1 Answer

Instrument panel flashes on and off, and air and heater come on by them selves

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  • Anonymous Aug 05, 2008

    my digital gages and speedometer don't work. Somebody told that it meant that my altinator was bad, I replaced and still have the same problem. My car is an 87 sedan deville



  • Anonymous Nov 13, 2008

    all digital lights in dash are not working speedometer,climate control,fuel gauge

  • masterfei195 Dec 13, 2008

    my gas gage is reading E and it's full, and the lights have been slightly dimming while idling also non of the check engine lights on the dash have been working, could that be a fuse, or is there a short in the dash somewhere?

  • tallglass197 Dec 23, 2008

    flashes on and off exactly the same thing

  • shivernack Apr 15, 2009

    fuel center and heater/ac display has small "c" displayed upon startup, blower fan on high and defrost. warning lights flash on and off intermitently. Speed display, milege display ok.

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  • 80 Answers

You have a loose connection on the cables to the dash, you can easily find them by moving them, or just pushing them and listening for changes on the dash.

Posted on Jul 28, 2008

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1 Answer

Where is the signal light relay that makes signal lights flash located on 2000 ols intrigue 3.5 liter


Important: The hazard warning switch includes the turn signal and hazard warning flashers.
Removal Procedure
Remove the center air deflector. Refer to Instrument Panel Center Air Outlet Deflector Replacement .
Squeeze the retainer on the backside of hazard warning and cruise control switch.
Pull the hazard warning and cruise control switch from the retainer in the instrument panel.
Disconnect the electrical connectors from the hazard warning and cruise control switch.
Remove the hazard warning and cruise control switch from instrument panel.
Remove the hazard warning and cruise control switch bezel from the instrument panel trim pad by using a small flat-bladed tool to the release retainers.
Remove the radio. Refer to Radio Replacement in Entertainment.
Reach through the radio opening and push the retainers up towards the roof of the vehicle. When the retainers release, slide the instrument panel (I/P) center air outlet deflector out of the I/P opening
Remove the air outlet deflector
Remove the instrument panel accessory trim plate. Refer to Instrument Panel Accessory Trim Plate Replacement in Instrument Panel, Gauges, and Console.
Remove the bolts from the radio.
Pull the radio toward you.
Remove the front floor console trim plate. Refer to Front Floor Console Trim Plate Replacement .
Pull the instrument panel (IP) accessory trim plate away from the IP trim pad.
Disconnect the IP harness seat heater leads, if equipped.
Remove the seat heater switches from the IP accessory trim plate, if equipped.
Remove the IP accessory trim plate.

Nov 09, 2016 | Cars & Trucks

2 Answers

How do i fix the heater core on my ford taurus 1995


Hi there,

Remove heater/evaporator case. Remove vacuum source line from heater core tube seal. Remove seal from heater core tubes.
Remove heater core access cover screws. Remove access cover and seal from heater/evaporator case. Lift heater core and case seals out of heater/evaporator case.
Installation
If installing new heater core, transfer case seals to new core. Install heater core and seals into heater/evaporator case. Install heater core access cover on case. Install seal on heater core tubes. To complete installation, reverse removal procedure. Evacuate and charge A/C system. Refill cooling system.

HEATER/EVAPORATOR CASE
Removal
  • Disconnect negative battery cable. Drain coolant from radiator. Gently pull instrument panel away from right side of dash panel.
  • Discharge A/C system using approved refrigerant recovery/recycling equipment. Disconnect heater hoses from heater core. Plug heater core tubes or drain coolant by blowing coolant from heater core using low pressure compressed air. Disconnect vacuum supply hose from inside engine compartment.
  • Disconnect A/C lines from evaporator core. Plug A/C lines and evaporator core tubes. Remove instrument panel assembly brace to evaporator case bracket screw. Remove assembly brace.
  • Remove floor register and rear floor duct from bottom of heater/evaporator case. Remove nuts securing heater/evaporator case to firewall. Remove 2 screws securing support brackets to cowl top panel. Carefully pull heater/evaporator case away from firewall. Remove heater/evaporator case.
  • To install, reverse removal procedure. Evacuate and charge A/C system. Refill cooling system.
INSTRUMENT PANEL
Removal & Installation
  • Position front wheels in straight-ahead position. Disable air bag system. See AIR BAG RESTRAINT SYSTEM article in ACCESSORIES/SAFETY EQUIPMENT section. Disconnect negative battery cable. Remove steering column trim shrouds.
  • Disconnect all electrical connections from steering column switches. Remove cover from under steering column. Remove 4 bolts and reinforcement from under steering column. Disconnect parking brake release control motor from parking brake and ignition switch connector.
  • Disengage insulator retainer. Remove insulator. Remove 4 nuts and reinforcement below steering column. Remove 4 nuts securing steering column to instrument panel and lower column to front seat. Disconnect PRNDL cable (A/T models).
  • Ensure ignition switch is locked to prevent steering column from turning. Remove 4 instrument cluster retaining screws. Disconnect speed control cable and vehicle speed sensor (if equipped). Disconnect electrical connectors and remove instrument cluster. At steering column opening, remove one bolt securing instrument panel to brace. Remove one instrument panel brace bolt (below radio area).
  • Remove sound insulator under glove box by removing 2 push nuts securing insulator to studs on climate control case. Remove glove box door and compartment. Remove air cleaner housing, battery and battery tray. Disconnect wires of main wire loom in engine compartment. Disengage rubber grommet from firewall. Feed wiring into passenger compartment through hole in firewall.
  • Remove right and left kick panels. Disconnect wires from instrument panel at right and left kick panel sides. Remove screws on left and right sides of instrument panel.
  • Pull up to unsnap right and left speaker opening covers. Remove speaker covers. Working through steering column and glove box openings, reach under instrument panel and disconnect electrical connectors, vacuum hoses, A/C-heater control panel cables, and radio antenna cable.
  • Support instrument panel. Remove 3 screws attaching top of instrument panel to cowl top. Disconnect remaining wires. Remove instrument panel. To install instrument panel, reverse removal procedure.

Hope this helps...

Jan 17, 2011 | 1995 Ford Taurus

1 Answer

Need to remove heater A/C dash control , what is proper procedure?


Look at fig. 4 for the heater a/c dash control: HEATER CORE Altima REMOVAL AND INSTALLATION
  1. Position the steering wheel in the straight-ahead position.
  2. Turn the ignition switch OFF.
  3. Disconnect the negative (() battery cable; then, the positive (+) battery cable. NOTE: Wait for a least 3 minutes after disconnecting the battery cables for the charge in the air bag circuit to dissipate before working on the air bag module(s).
  4. Remove the driver's side SRS and steering wheel by removing or disconnecting the following:
    • Lower lid from the steering wheel and disconnect the driver's air bag module connector
    • Left and right side lids from the steering wheel
    • Special bolts from both side of the steering wheel using a tamper resistant Torx wrench (T50)
    • Air bag module and store it face up
    • Horn's electrical connector and remove the steering wheel nut
    • Steering wheel from the steering column using a suitable puller
  5. Remove the passenger's side SRS by removing or disconnecting the following:
    • Glove box door and the glove box
    • Front passenger's air bag module connector
    • 2 special bolts using a tamper resistant Torx wrench (T50)
    • 4 passenger's air bag-to-instrument panel nuts
    • Front passenger's air bag module and store it face up.
  6. Drain the cooling system into a clean container for reuse.
  7. Discharge and recover the air conditioning system refrigerant.
  8. Working in the engine compartment, disconnect the heater hoses from the heater core tubes.
  9. Remove the instrument panel by removing or disconnecting the following:
    • Kick plate and dash side finisher on the driver's side
    • 2 lower panel-to-instrument panel screws and the lower panel on the driver's side
    • 2 lower reinforcement panel-to-instrument panel screws and the lower reinforcement panel
    • 6 steering column cover screws, the covers, the spiral cable and combination switch
    • 2 cluster lid "A" screws and the cluster lid "A"
    • 3 combination meter screws, disconnect the electrical harness connector and remove the combination meter
    • Switch panel
    • Instrument panel lower covers
    • Snap out the transmission shifter finisher (boot)
    • 4 cluster lid "C" screws and the cluster lid "C"
    • 4 audio and deck pocket-to-instrument panel screws and the audio and deck pocket
    • 5 center console screws and the center console
    • 2 center instrument panel screws and the center panel
    • front defroster grilles
    • Front pillar garnish
    • Instrument panel 3 nuts/4 screws and the instrument panel
    • 8 instrument stay assembly nuts and the stay
    • Steering member assembly 5 nuts/1 bolt and the steering member
  10. Remove the air conditioning housing assembly by removing or disconnecting the following:
    • Refrigerant lines from the air conditioning housing assembly
    • Thermo control amp
    • Air conditioning housing assembly
  11. Remove or disconnect the following:
    • Heater unit
    • Heater core from the heater unit Fig. 1: Exploded view of the steering wheel and air bag module 93112gd9.gif
      Fig. 2: Exploded view of the passenger's side air bag module 93112gd0.gif
      Fig. 3: Exploded view of the instrument panel assembly 93112ge1.gif
      Fig. 4: Exploded view of the heater housing assembly and related components 93112ge2.gif
      Fig. 5: View of the heater core and heater housing 93112ge3.gif
    To install:
  12. Install or connect the following:
    • Heater core to the heater unit
    • Heater unit
  13. Install the air conditioning housing assembly by installing or connecting the following:
    • Air conditioning housing assembly
    • Thermo control amp
    • Refrigerant lines to the air conditioning housing assembly
  14. Install the instrument panel by installing or connecting the following:
    • Steering member assembly and the steering member 5 nuts/1 bolt
    • Instrument stay assembly and the 8 stay nuts
    • Instrument panel and the instrument panel 3 nuts/4 screws
    • Front pillar garnish
    • Front defroster grilles
    • Center instrument panel and the 2 center panel screws
    • Center console and the 5 center console screws
    • Audio and deck pocket and the 4 audio and deck pocket-to-instrument panel screws
    • Cluster lid "C" and the 4 cluster lid "C" screws
    • Snap in the transmission shifter finisher (boot)
    • Instrument panel lower covers
    • Switch panel
    • Combination meter, connect the electrical harness connector and install the 3 combination meter screws
    • Cluster lid "A" and the 2 cluster lid "A" screw
    • Combination switch, the spiral cable, the covers and the 6 steering column cover screws
    • Lower reinforcement panel and the 2 lower reinforcement panel-to-instrument panel screws
    • Lower panel and the 2 lower panel-to-instrument panel screws, on the driver's side
    • Kick plate and dash side finisher, on the driver's side
  15. Working in the engine compartment, connect the heater hoses to the heater core tubes.
  16. Install the passenger's side SRS by installing or connecting the following:
    • Front passenger's air bag module
    • 4 passenger's air bag-to-instrument panel nuts
    • 2 new special bolts and torque using a tamper resistant Torx wrench (T50) to 11-18 ft. lbs. (15-25 Nm)
    • Front passenger's air bag module connector
    • Glove box door and the glove box
  17. Install the driver's side SRS and steering wheel by installing or connecting the following:
    • Steering wheel to the steering column
    • Steering wheel nut and torque the nut to 22-29 ft. lbs.
    • Horn's electrical connector
    • Air bag module
    • New special bolts to both sides of the steering wheel and torque the bolts using a tamper resistant Torx wrench (T50) to 11-18 ft. lbs. (15-25 Nm).
    • Both the left and right side lids to the steering wheel
    • Lower lid to the steering wheel and connect the driver's air bag module connector
  18. Refill the cooling system.
  19. Connect the positive (+) battery cable; then, the negative (() battery cable.
  20. Evacuate, charge and leak test the air conditioning system refrigerant.
  21. Operate the engine to normal operating temperatures; then, check the climate control operation and check for leaks.

Nov 19, 2010 | 2002 Nissan Sentra

1 Answer

Hi I,ve got a 2000 Jeep Grand Cherokee, the problem I,m having is when I turn on the heating fan i get a mist or steam coming out of the vents smells like coolant could this be a heater core problem ,...


Yes, your core is leaking. The core is in the box under the dash. The procedure is quite involved. I will attempt to paste from autozone.com below:
  1. Before servicing the vehicle, please familiarize yourself with safety procedures.
  2. Disconnect and remove the negative battery.
    CAUTION After disconnecting the negative battery cable, wait 2 minutes for the driver-s/passenger-s air bag system capacitor to discharge before attempting to do any work around the steering column or instrument.
  3. Drain the cooling system into a clean container for reuse.
  4. Remove the instrument panel by performing the following procedure:
    1. Turn the steering wheel in the straight-ahead position.
    2. Remove the A-pillar trim from both sides of the vehicle.
    3. Remove the top cover from the instrument panel.
    4. Near the windshield line, remove the 4 instrument panel-to-chassis nuts.
    5. Remove the scuff plates from both front door sills.
    6. Remove the trim panels from both sides of the inner cowl.
    7. Remove the floor console.
    8. Remove the fuse cover from the junction box.
    9. Remove the instrument panel cluster bezel.
    10. Remove the steering column opening cover from the instrument panel.
    11. Remove the steering column bracket from the instrument panel column support bracket.
    12. Remove the lower steering column shroud cover-to-multifunction switch screw; then, unsnap both halves of the shroud cover from the steering column.
    13. Disconnect the instrument panel wiring harness connectors from the following steering column components:
      Both lower clock spring connector receptacles Left multifunction switch receptacle Right multifunction switch receptacle Both ignition switch receptacles Shifter interlock solenoid receptacle Sentry Key Immobilizer Module (SKIM) receptacle, if equipped
    14. Turn the ignition switch to ON position; then, release and remove the shifter interlock cable connector from the ignition lock housing receptacle.
    15. Turn the ignition switch to OFF position; this will prevent the steering wheel from turning and the loss of the clock spring centering following steering column removal.
    16. Remove the 4 steering column-to-instrument panel steering column bracket nuts.
    17. Remove the steering column from the instrument panel.
    18. Disconnect both side body wiring harness bulkhead connectors, the Ignition Off Draw (IOD) wiring harness connector and the fused wiring harness connector from the junction block connector receptacles.
    19. Disconnect the instrument panel wiring harness-to-floor console component connectors:
      Air bag control module connector receptacle Parking brake switch terminal Transmission shifter connector receptacle
    20. Remove the 2 instrument panel wiring harness-to-floor console ground terminals located behind the air bag control module.
    21. Disconnect the instrument panel wiring harness-to-floor console retainers.
    22. Remove the instrument panel-to-floor console bracket screws and the bracket.
    23. Remove the driver-s side floor duct-to-heater/air conditioning housing assembly screw and remove the duct.
    24. If equipped with a manual heating-air conditioning system, disconnect the vacuum harness connector from behind the driver-s side floor duct.
    25. Remove the instrument panel steering column support bracket-to-driver-s side of the heater/air conditioning housing assembly screw
    26. Remove the instrument panel steering column support bracket-to-intermediate bracket screw.
    27. Remove the instrument panel steering column support bracket-to-driver-s side cowl plenum panel nut.
    28. Remove the 2 instrument panel-to-driver-s side cowl side inner panel screws.
    29. Remove the instrument panel end cap.
    30. Remove the lower right center bezel from the instrument panel.
    31. At the passenger-s side cowl side inner panel, disconnect the instrument panel wiring harness bulkhead connector from the lower cavity of the inline connector.
    32. Near the right side cowl inner panel, located under the end of the instrument panel, disconnect both halves of the radio antenna coaxial cable connector.
    33. Disconnect the 2 instrument panel-to-heater/air conditioning assembly wiring harness connectors.
    34. At the passenger-s side, remove the 2 instrument panel structural duct-to-heater/air conditioning housing assembly screws.
    35. At the passenger-s side cowl side inner panel, remove the 2 instrument panel-to-passenger-s side cowl side inner panel screws.
    36. With the help of an assistant, lift the instrument panel from the vehicle.
  5. Discharge and recover the air conditioning system refrigerant.
  6. Disconnect the air conditioning system lines at the evaporator. Plug the openings to prevent contamination.
  7. Disconnect the heater hoses from the heater core. Plug the openings to prevent coolant loss.
  8. If equipped with a manual temperature control system, unplug the heater/air conditioning system vacuum supply line connector from the T-fitting located near the heater core tubes.
  9. From the passenger-s side inner fender shield, remove the coolant reservoir/overflow bottle.
  10. From the passenger-s side in the engine compartment dash panel, remove the PCM; DO NOT unplug it, just move it aside.
  11. In the engine compartment, remove the heater/air conditioning housing-to-chassis nuts.
  12. At the center of the dashboard, remove the rear floor ducts from the floor heat duct outlets.
  13. Disconnect the heater/air conditioning housing wire harness connectors.
  14. In the passenger compartment, remove the heater/air conditioning housing-to-chassis nuts.
  15. Place covers inside the vehicle to catch any spilt coolant.
  16. Remove the heater/air conditioning housing assembly from the vehicle.
  17. Remove the foam gasket from around the heater core tubes.
    NOTE Note the position of the irregular shaped gasket so that it may be reinstalled in its correct position.
  18. Remove the heater core retainers and screws.
  19. If necessary, remove the mode door actuator for clearance to remove the core.
  20. Remove the heater core from the heater/air conditioning housing assembly.

    0996b43f8022fa8a.jpg enlarge_icon.gifenlarge_tooltip.gif

    Fig. View of the instrument panel assembly-Grand Cherokee

Sep 16, 2010 | 2000 Jeep Grand Cherokee

1 Answer

How do I remove heater core on 1997 dodge stratus


prev.gif next.gif Heater Core REMOVAL & INSTALLATION Cirrus, Stratus, Sebring Convertible and Breeze
  1. Disconnect the negative battery cable.
  2. Remove the radio/HVAC control module bezel. CAUTION
    The vehicles covered by this manual are equipped with a Supplemental Restraint System (SRS), which uses air bags. Whenever working near any of the SRS components, such as the impact sensors, air bag modules, steering column and instrument panel, disable the SRS, as described earlier in this section.
  3. Remove the right instrument panel side trim.
  4. Remove the two retaining screws at the lower right side support beam.
  5. Remove the instrument panel support bolt at the A-pillar.
  6. Remove the left instrument panel side trim and upper instrument panel bezel.
  7. Remove the lower knee bolster and console screws at the instrument panel.
  8. Remove the gearshift knob and shifter bezel.
  9. Remove the mounting screws at the front and rear of the floor console. Remove the front and rear console halves.
  10. Remove the right side instrument panel support strut.
  11. Drain the cooling system into a suitable container, then disconnect the heater hoses at the cowl panel. Plug the heater core outlets to prevent coolant from spilling during unit housing removal. Fig. 1: Remove the heater core cover 90906g01.gif
    Fig. 2: Remove the heater core 90906g02.gif

  12. Remove the mounting screws and heater core cover.
  13. Remove the heater core from the vehicle. To install:
  14. Carefully position the heater core unit into the heater housing.
  15. Install the heater core cover onto the heater housing and tighten the mounting screws.
  16. Install the right side instrument panel support strut.
  17. Install the front and rear console halves.
  18. Install the shifter bezel and gearshift knob.
  19. Install the lower knee bolster and console screws at the instrument panel.
  20. Install the upper instrument panel bezel and left instrument panel side trim.
  21. Install the instrument panel support bolt at the A-pillar.
  22. Install the two retaining screws at the lower right side support beam.
  23. Install the right instrument panel side trim.
  24. Install the radio/HVAC control module bezel.
  25. Fill the cooling system to the proper level.
  26. Connect the negative battery cable.
Sebring Coupe and Avenger
  1. Disconnect the negative battery cable. CAUTION
    The vehicles covered by this manual are equipped with a Supplemental Restraint System (SRS), which uses air bags. Whenever working near any of the SRS components, such as the impact sensors, air bag modules, steering column and instrument panel, disable the SRS, as described earlier in this section.
  2. Remove the instrument panel from the vehicle, as outlined in Section 10 of this manual.
  3. Drain the cooling system into a suitable container, then disconnect the heater hoses from the dashboard panel. Plug the heater core outlets to prevent coolant from spilling during unit housing removal.
  4. Remove the center stay.
  5. Remove the lap cooler duct mounting screw. Remove the center duct.
  6. Remove the left and right rear heater ducts.
  7. Remove the foot distribution duct.
  8. If equipped with A/C, remove the cooling unit mounting nut and bolt.
  9. Remove the retainer clip, then the heater unit.
  10. Remove the heater core. Fig. 3: Exploded view of heater unit and core assembly 90906g03.gif
    To install:
  11. Install the heater core into the heater housing.
  12. Install the heater housing and retainer clip into the vehicle.
  13. If equipped with A/C, install the cooling unit mounting bolt and nut.
  14. Install the foot distribution duct. Install the left and right rear heater ducts.
  15. Install the center duct, then install the lap cooler duct mounting screw.
  16. Install the center stay and connect the heater hoses to the heater core at the dashboard panel.
  17. Install the instrument panel.
  18. Fill the cooling system to the proper level.
  19. Connect the negative battery cable.

Jul 08, 2010 | 1997 Dodge Stratus

3 Answers

Looking to replace heater core


Cherokee, Grand Cherokee, 1999-2005

Removal & Installation
  1. Disconnect and remove the negative battery.
    CAUTION After disconnecting the negative battery cable, wait 2 minutes for the driver-s/passenger-s air bag system capacitor to discharge before attempting to do any work around the steering column or instrument.
  2. Drain the cooling system into a clean container for reuse.
  3. Remove the instrument panel by performing the following procedure:
    1. Turn the steering wheel in the straight-ahead position.
    2. Remove the knee blocker from the instrument panel.
    3. Remove the steering column; do not remove the air bag module, the steering wheel or switches from the steering column.
    4. From under the driver-s side of the instrument panel, disconnect the following items:

      Instrument panel wiring harness connector from the 100-way wiring harness connector at the left side of the inner panel. Side window demister hose at the heater/air conditioning housing demister/defroster duct on the driver-s side.
    5. Remove the glove box.
    6. Reaching through the glove box opening, disconnect the following items:

      Two halves of the heater/air conditioning system vacuum harness connector. Instrument panel wiring harness connector from the heater/air conditioning system wiring harness connector. Instrument panel wiring harness connector from the passenger-s side air bag module wiring harness connector. Side window demister hose at the heater/air conditioning housing demister/defroster duct (passenger-s side). Two halves of the radio antenna coaxial cable connector. Two instrument panel wiring harness connectors from the passenger air bag ON/OFF switch wiring harness connector. Passenger-s side air bag ON/OFF switch wiring harness from the retainer clip on the plenum bracket that supports the heater/air conditioning housing just inboard of the fuse block module. Two lower passenger-s side air bag module bracket-to-dash panel nuts.
    7. Remove the upper cover from the instrument panel.
    8. Remove the 3 instrument panel-to-door hinge pillar screws.
    9. Remove the 4 upper instrument panel-to-dash nuts.
    10. Using an assistant, remove the instrument panel from the vehicle.
  4. If equipped with air conditioning, discharge and recover the air conditioning system refrigerant.
  5. Disconnect the refrigerant lines from the evaporator. Plug the refrigerant openings to prevent evaporation.
  6. Disconnect the heater hoses from the heater core tubes.
  7. Disconnect the heater/air conditioning system vacuum supply line connector from the T-fitting near the heater core tubes.
  8. In the engine compartment, remove the 5 heater/air conditioning housing-to-chassis nuts. If necessary, loosen the battery hold-downs and reposition the battery for access.
  9. Remove the cowl plenum drain tube from the heater/air conditioning housing stud; it-s located behind the cylinder head on the cowl.
  10. From the bottom of the heater/air conditioning housing, remove the floor duct.
  11. On the passenger side, remove the heater/air conditioning housing-to-plenum bracket screw.
  12. Pull the heater/air conditioning housing down far enough to clear the defrost/demist and fresh air ducts, then, rearward far enough to clear the mounting studs and the evaporator drain tube to clear the dash panel holes.
  13. Remove the heater/air conditioning housing assembly from the vehicle.
  14. Remove the heater/air conditioning housing upper case.
  15. Lift the heater core from the lower half of the heater/air conditioning housing.
To install:
  1. Assemble the heater core into the lower half of the heater/air conditioning housing.
  2. Install the heater/air conditioning housing upper case.
  3. Install the heater/air conditioning housing assembly to the vehicle.
  4. On the passenger-s side, install the heater/air conditioning housing-to-plenum bracket screw.
  5. At the bottom of the heater/air conditioning housing, install the floor duct.
  6. Install the cowl plenum drain tube to the heater/air conditioning housing stud; it-s located behind the cylinder head on the cowl.
  7. In the engine compartment, install the 5 heater/air conditioning housing-to-chassis nuts.
  8. Connect the heater/air conditioning system vacuum supply line connector to the T-fitting near the heater core tubes.
  9. Connect the heater hoses to the heater core tubes.
  10. Connect the refrigerant lines to the evaporator.
  11. If equipped with air conditioning, evacuate and charge the air conditioning system refrigerant.
  12. Install the instrument panel by performing the following procedure:
    1. Using an assistant, install the instrument panel to the vehicle.
    2. Install the 4 upper instrument panel-to-dash nuts.
    3. Install the 3 instrument panel-to-door hinge pillar screws.
    4. Install the upper cover to the instrument panel.
    5. Reaching through the glove box opening, connect the following items.

      Two lower passenger-s side air bag module bracket-to-dash panel nuts. Passenger-s side air bag ON/OFF switch wiring harness to the retainer clip on the plenum bracket that supports the heater/air conditioning housing just inboard of the fuse block module. Two instrument panel wiring harness connectors to the passenger air bag ON/OFF switch wiring harness connector. Two halves of the radio antenna coaxial cable connector. Side window demister hose at the heater/air conditioning housing demister/defroster duct (passenger-s side). Instrument panel wiring harness connector to the passenger-s side air bag module wiring harness connector. Instrument panel wiring harness connector to the heater/air conditioning system wiring harness connector. Two halves of the heater/air conditioning system vacuum harness connector.
    6. Install the glove box.
    7. Under the driver-s side of the instrument panel, connect the following items:

      Side window demister hose at the heater/air conditioning housing demister/defroster duct on the driver-s side. Instrument panel wiring harness connector to the 100-way wiring harness connector at the left side of the inner panel.
    8. Install the steering column.
    9. Install the knee blocker to the instrument panel.

  13. Connect and remove the negative battery.
  14. Refill the cooling system.
  15. Run the engine to normal operating temperatures; then, check the climate control operation and check for leaks.

Hope helps (remember rated this).

Jun 25, 2010 | 2001 Jeep Grand Cherokee

1 Answer

How to replace heater hose. they are the hoses a e back of the engine by the fire wall


Taurus And Sable - Removal And Installation
  1. Disconnect the negative battery cable.
    CAUTION After disconnecting the negative battery cable, wait for at least 1 minute for the SRS or air bag module to deplete its energy.

  2. Place the front wheels in the straight-ahead position.
  3. Lock the steering column.
  4. Remove or disconnect the following:
    SRS bolt covers from both sides of the steering wheel SRS module-to-steering wheel bolts SRS module and disconnect the electrical connector Steering wheel bolt and discard it
  5. Press the steering wheel from the steering column.
    Lower steering column shaft bolt 2 lower instrument panel cover-to-instrument panel screws and unsnap the lower cover from the instrument panel
  6. Turn ignition switch to the RUN position
  7. Insert a 1 / 8 in. (3mm) wire or pin punch in the lower steering column shroud hole, under the ignition switch; then, press on the pin while pulling out on the ignition switch lock cylinder and remove it from the steering column lock cylinder housing.
  8. Remove or disconnect the following:
    3 steering column shroud screws and the shrouds Shift control selector lever boot Gearshift lever pin from the manual control lever and remove the lever Wiring connector at the bottom of the steering column and remove the wiring from the column, (if equipped with an overdrive lockout switch on the manual control lever) Electrical connectors Multi-function switch screws and move it aside Shift indicator cable from the shifter tube Shifter indicator-to-column adjustment cable screw Interlock cable and actuator (if equipped with a column shift) 4 steering column-to-instrument panel bracket nuts and steering column Push pins and the lower instrument cover from the instrument panel reinforcement (at the passenger-s side) Console finish panel
  9. Under the steering column, 2 instrument panel brace screws, the courtesy lamp socket, the 2 Diagnostic Link Connector (DLC) screws and the instrument panel brace.
  10. If not equipped with an Electronic Automatic Temperature Control (EATC), disconnect the electrical connectors and the vacuum harness from the evaporator housing and the blower motor.
  11. If equipped with an Electronic Automatic Temperature Control (EATC), remove the sensor hose/elbow and disconnect the electrical harness connectors and the vacuum hose harness from the evaporator housing.
  12. Insert the Radio Removing tools 415-001into the integrated control panel faceplate; then, push the tools in approximately 1 1 / 2 in. (38mm) to release the retaining clips. Spread the tools slightly and pull the integrated control panel from the instrument panel.
  13. Remove or disconnect the following:
    Electrical connectors and the automatic temperature control sensor hose and elbow, if equipped 6 console center finish panel screws and the panel, (if equipped with a floor shift) 4 instrument panel finish panel screws and panel, located at the right side of the steering column, (if equipped with a column shift) Instrument cluster finish panel-to-instrument panel clips and pull the finish panel straight out 4 instrument cluster-to-instrument panel screws, the electrical connectors and the instrument cluster Upper finish panel (located at the top of the instrument panel) Light sensor amplifier connector, (if equipped with an autolamp) Instrument panel finish end panels on both sides of the instrument panel Front scuff plates and pull the door weatherstrip away from the instrument panel (on both sides of the instrument panel) 3 instrument panel-to-upper cowl top panel screws 2 screws at each end of the instrument panel Instrument panel electrical connectors and the parking brake switch Instrument panel
  14. Drain the cooling system into a clean container for reuse
  15. Remove or disconnect the following:
    WARNING Do not attempt to bend any part of the lever, for it is brittle and will break. Heater hoses from the heater core and plug the openings 4 air conditioning electronic blend door actuator-to-heater/air conditioning housing assembly screws and the actuator Metal cover, disengage the spring from the heater core cover and from the lever Gently, depress the locking ramp and remove the lever from the secondary air temperature control door end
  16. Rotate the primary air conditioning air temperature control door shaft downward, swing the metal link counterclockwise and remove it from the pin.
  17. Remove the 3 heater core cover-to-heater/air conditioning housing assembly screws, the cover and the seal.
  18. Press on the heater core tubes and remove the heater core from the heater/air conditioning housing assembly.

Hope helps (remember rated this).

May 28, 2010 | 2002 Ford Taurus

1 Answer

Need to replace heater core


big job, dificulty 8 on a 10 scale Heater Air Plenum Chamber Removal
  1. Remove heater outlet floor duct (18C433) as described.
  1. Remove instrument panel (04320). Refer to Section 01-12 .
Instrument Panel SPECIAL SERVICE TOOL(S) REQUIRED Description Tool Number Radio Removing Tool 415-001 (T87P-19061-A)
Removal and Installation
  1. Disconnect battery ground cable (14301).
  1. Remove RF wheel and tire assembly. Refer to Section 04-04 .
  1. Remove three nuts in radiator coolant recovery reservoir area.
  1. Remove bolt retaining front fender apron (16054) to front fender (16005) .
  1. Position front fender splash shield out of the way.
  1. Lower vehicle.
  1. Tag and remove main harness connector from jumper harness (located in front of blower motor).
  1. Remove steering column. Refer to Section 11-04 .
  1. Remove RH cowl side trim panel (02344) and LH cowl side trim panels (02345) .
  1. Tag and disconnect wiring connectors in LH and RH cowls.
  1. Remove ground wire located on LH cowl side.
  1. Remove RH instrument panel upper moulding (04268) and LHinstrument panel moulding (04389) from instrument panel (04320) by pulling away from instrument panel and snapping out of retainers. Disconnect wiring connectors as required.
  1. Remove glove compartment (06010).
  1. Remove instrument panel upper finish panel (044A90) and disconnect the A/C sunload sensor (19E663) and anti-theft indicator, if equipped.
  1. Disconnect the heater water hoses (18472) from the heater core tubes. Plug the ends of the heater water hoses to prevent coolant loss.
  1. Plug heater core tubes securely to prevent coolant leakage from heater core (18476).
  1. Remove one nut retaining the upper LH corner of the A/C evaporator core housing (19A559) to the dash panel (01610) .
  1. Disconnect two vacuum supply hoses from vacuum source. Push grommet and vacuum supply hose into passenger compartment.
  1. Disconnect wiring harness from A/C electronic blend door actuator.
  1. Disconnect the white vacuum hose from the heater and A/C air inlet duct door vacuum control motor (18A318).
  1. Remove nuts from the studs along the lower flange of the heater air plenum chamber (18471).
  1. Disconnect connectors to A/C electronic blend door actuator and electronic module on side of heater air plenum chamber.
  1. Remove heater air plenum chamber by pulling rearward.


Heater Air Plenum Chamber and Air Inlet Duct

8b51d06.gif



Item Part Number Description 1 19C836 Suction Accumulator/Drier 2 56956-S2 Screw (2 Req'd) 3 386877-S36 Screw 4 45445-S36 Nut and Washer Assy 5 19C928 A/C Recirculating Air Duct Screen 6 386877-S36M Screw (2 Req'd) 7 45332-S12 Nut and Washer 8 19B762 A/C Air Inlet Door Inner Seal 9 19C590 A/C Recirculating Air Duct 10 18471 Heater Air Plenum Chamber 11 18C433 Heater Outlet Floor Duct 12 55734-S2 Nut 13 19A559 A/C Evaporator Core Housing 14 45332-S2 Nut and Washer A — Tighten to 2.5-3.2 Nm (23-28 Lb-In)
Installation
  1. Route the vacuum supply hose through the dash panel and seat the grommet in the opening.
  1. Position the heater air plenum chamber under the instrument panel with the A/C register duct opening up and the heater core tubes down. Connect wire harness connector to A/C electronic blend door actuator and electronic module on side of heater air plenum chamber .
  1. Rotate the heater air plenum chamber up behind the instrument panel and position the heater air plenum chamber to the dash panel. Insert the heater core tubes and mounting studs through their respective holes in the dash panel and the A/C evaporator core housing.
  1. Install three nuts on the studs along the lower flange and one on the upper flange of the heater air plenum chamber.
  1. Install three nuts below the windshield wiper motor (17508) to retain the LH end of the heater air plenum chamber to the dash panel.
  1. Install one nut to retain the upper LH corner of the A/C evaporator core housing to the dash panel .
  1. Connect the white vacuum hose to the heater and A/C air inlet duct door vacuum control motor.
  1. Connect the vacuum jumper harness to the plenum harness at the multiple vacuum connector near the heater outlet floor duct. Install heater outlet floor duct.
  1. Connect the sensor tube to the evaporator case connector on EATC-equipped vehicles.
  1. Connect vacuum supply hose to vacuum supply.
  1. Unplug the heater core tubes and connect the heater water hoses to the heater core tubes.
  1. Fill the cooling system with coolant to replace coolant lost during removal of the heater air plenum chamber.
  1. Install heater outlet floor duct as described.
  1. Install instrument panel. Refer to Section 01-12 .


Section 12-03A: Air Conditioning System—Manual A/C-Heater 1998 Crown Victoria, Grand Marquis Workshop Manual
REMOVAL AND INSTALLATION Heater Core Removal
NOTE: If a heater core leak is suspected, the heater core must be pressure leak tested before it is removed from the vehicle. Refer to Section 12-00 .

  1. Remove the heater air plenum chamber (18471) assembly as described.
  1. Remove the heater dash gasket (18570) from the heater air plenum assembly.
  1. Remove the four retaining screws from the heater core cover (18B300) and remove the heater core cover from the heater air plenum chamber assembly.


Dec 15, 2009 | Mercury Marquis Cars & Trucks

1 Answer

How to Replace a Heater Core


Removal & Installation

  1. Disconnect the negative battery cable.
    CAUTION After disconnecting the negative battery cable, wait 2 minutes for the driver-s/passenger-s air bag system capacitor to discharge before attempting to do any work around the steering column or instrument
  2. On diesel models, remove the passenger side battery and battery tray.
  3. Remove the instrument panel by performing the following procedures:
    1. Remove the air bag control module (ACM) and bracket from the floor panel tunnel.
    2. Remove the trim from both cowl side inner panels.
    3. Remove the steering column-to-instrument panel opening cover.
    4. Remove the 2 hood latch release handle-to-instrument panel lower reinforcement screws and lower the handle to the floor.
    5. Disconnect the driver-s side air bag module wiring harness connector from the lower instrument panel reinforcement.
    6. Place the wheels in the straight-ahead position and lock the steering wheel. Remove the steering column without disassembling it.
    7. From under the driver-s side of the instrument, disconnect or remove the following items:

      Parking brake release handle linkage rod from the parking brake mechanism located on the left cowl side inner panel. Instrument panel wiring harness connector from the parking brake switch located on the parking brake mechanism. Three wiring harness connectors (body wiring harness, headlight, dash) from the 3 junction block connector receptacles located closest to the dash panel. Head light/dash-to-instrument panel bulkhead wiring harness connector screw and disconnect the connector. Instrument panel-to-door wiring harness connector located directly below the bulkhead wiring harness connector. Infinity sound system wiring harness connector (if equipped), located at the outboard side of the instrument panel bulkhead connector. Stop light switch electrical connector. Vacuum harness connector located near the left side of the heater/air conditioning housing.
    8. Under the passenger-s side of the instrument panel, disconnect the radio antenna coaxial cable connector.
    9. Loosen both sides of the instrument panel cowl side roll-down bracket screws about 1 / 2 inch (13mm).
    10. Remove the 5 upper instrument panel-to-upper dash panel screws; remove the center screw last.
    11. Roll down the instrument panel and install a temporary hook in the center hole on top of the panel. Attach the other end to the center hole in the top of the dash panel. The opening should be approximately 18 inches (46cm).
    12. Disconnect the instrument panel-to-heater/air conditioning housing assembly wiring harness connectors.
    13. Using an assistant, remove the instrument panel from the vehicle.

  4. If equipped with air conditioning, perform the following procedure:
    1. Discharge and recover the air conditioning system refrigerant.
    2. Disconnect the refrigerant lines from the evaporator. Plug the openings to prevent contamination.
    3. Disconnect the refrigerant lines from the accumulator. Plug the openings to prevent contamination.
    4. Remove the accumulator.

  5. Drain the cooling system into a clean container for reuse.
  6. Disconnect the heater hoses from the heater core tubes.
  7. Remove the PCM from the dash panel and move it aside. Do not disconnect the PCM harness connector.
  8. In the engine compartment, remove the heater/air conditioning housing assembly-to-chassis nuts.
  9. In the passenger-s compartment, remove the heater/air conditioning housing-to-dash panel nuts.
  10. Pull the heater/air conditioning housing assembly rearward far enough to clear the studs and air conditioning drain tube holes.
  11. Remove the heater/air conditioning housing assembly from the vehicle.
  12. Remove the upper-to-lower heater/air conditioning housing screws and remove the upper housing.
  13. Remove the heater core from the lower housing.


    Fig. View of the heater/air conditioning housing assembly


    0900c15280225dc3.jpg enlarge_icon.gifenlarge_tooltip.gif Fig. View of the heater core

Apr 07, 2009 | 1997 Dodge Ram

1 Answer

How do I change the heater core in my 1984 grand marquis? I dont have a manual


you have to remove the plenum case behind the dash. I will provide 94 gr marquis. don't have 84.



---------------------------------------------------------------------------------------
Section 12-03A: Air Conditioning System—Manual A/C-Heater 1994 Crown Victoria/Grand Marquis. Workshop Manual
REMOVAL AND INSTALLATION Heater Core Removal
  1. Remove the heater air plenum chamber assembly as outlined.
  2. Heater Air Plenum Chamber Removal
    1. Disconnect battery ground cable .
    1. Disconnect the heater water hoses from the heater core tubes. Plug the ends of the heater water hoses to prevent coolant loss.
    1. Plug heater core tubes securely to prevent coolant leakage from heater core during heater air plenum chamber removal.
    1. Remove three nuts located below the windshield wiper motor (17508) retaining the LH end of the heater air plenum chamber to the dash panel .
    1. Remove one nut retaining the upper LH corner of the A/C evaporator core housing to the dash panel .
    1. Remove LH and RH lower instrument panel insulators.
    1. Disconnect two vacuum supply hoses from vacuum source. Push grommet and vacuum supply hose into passenger compartment.
    1. Remove all instrument panel retaining screws and pull the instrument panel back as far as possible without disconnecting any wire harnesses.
    1. Loosen the RH door sill plate and remove the RH side cowl trim panel.
    1. Remove cross body brace and disconnect wiring harness from A/C electronic door actuator motor (19E616) and disconnect the sensor tube from the evaporator case connector.
    1. Disconnect the vacuum jumper harness at the multiple vacuum connector near the heater outlet floor duct.
    1. Disconnect the white vacuum hose from the heater and A/C air inlet duct door vacuum control motor.
    1. Remove two hush panels.
    1. Remove one plastic push fastener retaining the heater outlet floor duct to the LH end of the heater air plenum chamber . Remove LH screw and loosen RH screw on the rear face of the heater air plenum chamber and remove the heater outlet floor duct .
    1. Remove two nuts from the two studs along the lower flange of the heater air plenum chamber .
    1. Carefully move heater air plenum chamber rearward to allow heater core tubes and the stud at the top of the heater air plenum chamber to clear holes in the dash panel. Remove heater air plenum chamber from vehicle by rotating the top of the heater air plenum chamber forward, down and out from under the instrument panel . Carefully pull lower edge of instrument panel rearward as necessary while rolling the heater air plenum chamber from behind the instrument panel .
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  1. Remove the four retaining screws from the heater core cover (18B300) and remove the heater core cover from the heater air plenum chamber assembly.

    Heater Core Removal


    bd523c4.gif


    Item Part Number Description 1 390092-S2 Screw (2 Req'd) 2 18658 Heater Core Case Seal 3 18476 Heater Core 4 18570 Heater Dash Gasket 5 18471 Heater Air Plenum Chamber 6 18B300 Heater Core Cover
  1. Pull the heater core assembly from the heater air plenum chamber assembly.
Installation
  1. Carefully install heater air plenum chamber assembly into the heater air plenum chamber assembly. Visually check to ensure that core seal is properly positioned.
  1. Position the heater core cover and install the four retaining screws.
  1. Install the heater air plenum chamber assembly as outlined.

Feb 27, 2009 | 1984 Mercury Grand Marquis

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