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Posted on Apr 14, 2010
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Leek on the passenger floor comming from air conditioning

  • Anonymous May 11, 2010

    What do you mean coming from air conditioning? Does it leak when you have the air conditioner on?

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1 Answer

Mitchell Fleming

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  • Master 427 Answers
  • Posted on Apr 14, 2010
Mitchell Fleming
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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

2helpful
2answers

Leak from air condition on floor not loosing Drain from a/c commi

There is a hose that comes through the firewall on the passenger side, it is the condensate line for the AC unit, it gets clogged up with bugs, dirt, wasps, etc, clear it out, it will flood the floor if it is blocked. It looks like a little bent rubber hose, it doesn't look like one, it is one. Check it out.
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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).
2helpful
1answer

Air conditioning leaking on passenger floor board

There is a drain hose that releases the condensation to the ground. It is probably plugged and the condensation is overflowing on the floor. Look under the vehicle same area as the leak is on the floor and find an open end of a hose. Blow air up thru it or run a long wire up to unplug it. Good luck Darrell S
3helpful
1answer

2001 ford focus defroster blows out ac vents

may be just a cable adjustment.


SECTION 412-01: Air Distribution and Filtering 2001 Focus Workshop Manual DESCRIPTION AND OPERATION Air Distribution and Filtering The new heating and ventilation system ensures even air distribution.
The temperature control and air distribution flaps are controlled by two operating cables. All vehicles have a recirculated air function, with the flap controlled by a servo motor.
Air is supplied to the windscreen and side windows regardless of the air distribution setting.
The clean air filter is fitted as standard in most countries. This cleans the incoming fresh air of pollen and dirt particles. It must be renewed after every 40,000 km under normal operation conditions, or after 20,000 km under difficult conditions. If no clean air filter is installed, a plastic grille is fitted over the air intake. This can easily be replaced with a clean air filter.
Air distribution operating switch
Face level The main flow of air enters the passenger compartment at face level.
Face level/floor level The main flow of air enters the passenger compartment in equal parts at face level and floor level, and a small amount flows to the demister nozzles of the side windows.
Floor level The main flow of air enters the passenger compartment at floor level, and a smaller amount flows to the demister nozzles of the side windows.
Demist/floor level The main flow of air enters the passenger compartment in equal parts at the windscreen and at floor level, and a smaller amount flows to the demister nozzles of the side windows.
Demist The main flow of air enters the passenger compartment at the windscreen and a smaller amount flows to the demister nozzles of the side windows.
Air distribution operating switch Air distribution operating cables
NOTE: The Bowden cables for LHD and RHD vehicles are identical. However, they are fastened to the air flap operating mechanism with the respective reverse side of their connectors.
The air distribution switch operates with two Bowden cables. The cables operate the air distribution valves in the heater housing.
To remove and install the cables, the rotary switch must be turned as far as it will go to the left. The air flap mechanism engages easily in this position, making the installation of the cables easier.
--------------------------------
Air Distribution Cable Control Assembly Removal
s1y~us~en~file=ani_caut.gif~gen~ref.gif CAUTION: Disconnect the battery ground cable. For additional information, refer to Section 414-01 .
  1. Remove the radio/cassette unit and the CD player (if equipped). For additional information, refer to Section 415-01 .
  1. Remove the bezel with heater/air conditioning controls.
  1. Remove the bezel with heater/air conditioning controls (continued).
    • Pull off seven electrical connectors (six shown).
  1. NOTE: To remove the Bowden cables, turn the rotary switches as far as they will go to the left.
    Remove the bezel with heater/air conditioning controls (continued).
    • Unclip the Bowden cables.
  1. Remove the lower driver's side footwell trim.
  1. Unclip and remove the air distribution Bowden cables.
  1. Unclip and remove the temperature control Bowden cables.
    • Unclip and remove the temperature control Bowden cables.
Installation
  1. NOTE: Route the new Bowden cables without kinks and check for easy accessibility.
    NOTE: To install the Bowden cables, turn the rotary switches as far as they will go to the left. The mechanism engages easily in this position.
    NOTE: The Bowden cables are identical for RHD and LHD vehicles, although they are fastened to the air flap operating mechanism with the reverse side of their connectors.
    Install the components in reverse order.
  1. Check operation of the Bowden cables.
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