Question about 1997 Toyota Paseo

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Leak on my heater core.....do i have to remove the core and the evaporator

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No just the Radiator and take it to the Rad people for perssure testing first before doing any work on it as if it shows more leaks under pressure than the one you have Dont get it fixed as it will be out again in 3 weeks get it recored and fit a new thermostat the same time..

Posted on Oct 06, 2009

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How do i replace the heater core 1997 isuzu hombre


See me at website for images can only send one through this channel. www.autorepairhelp.us

Best Regards,

Master Tech Lee

HEATER BOX SHIELD
Image
Heater Box Heat Shield
Remove or Disconnect
1. Fasteners that retain heat shield to heater box assembly.
Image [ Heater Box Heat Shield
Install or Connect
1.Fasteners that retain heat shield to heater box assembly.
Tighten
-Bolts Screws to 2.2 N.m (25 lb in).
HEATER ASSEMBLY
Image ' Heater Hoses
Image ' A/C Evaporator Tube Assembly
Image ' Evaporator Core
Image ' Evaporator Core Assembly
Image ' Heater Assembly
Remove or Disconnect
1.Engine coolant. Refer to Draining and Filling Cooling System in Engine Cooling.
2.Heater hoses. Refer to Heater Hoses.
3.Instrument panel. Refer to Instrument Panel Replacement in Interior Trim.
4.Air inlet assembly. Refer to Air Inlet Assembly Replacement.
5.Vacuum lines.
Important
-Clearly label vacuum line connections.
6.Heater assembly studs inside engine bay.
7.Blower motor resistor. Refer to Blower Motor Resistor.
8.Stud inside heater core housing.
-Stud is revealed by removing the blower motor resistor.
9.Rear case screws.
10.Heater assembly.
11.Seals.
Imagt
Imagt
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Heater Hoses
A/C Evaporator Tube Assembly
Evaporator Core
Evaporator Core Assembly
Heater Assembly
Install or Connect
1.Seals.
2.Heater assembly.
3.Rear case screws.
4.Stud inside heater core housing.
Tighten
-Stud to 1.9 N.m (17 lb in).
5.Blower motor resistor. Refer to Blower Motor Resistor.
6.Heater assembly studs inside engine bay.
Tighten
-Studs to 1.9 N.m (17 lb in).
7.Vacuum lines.
8.Air inlet assembly. Refer to Air Inlet Assembly Replacement.
9.Instrument panel. Refer to Instrument Panel Replacement in Interior Trim.
10.Heater hoses. Refer to Heater Hoses.
11.Engine coolant. Refer to Draining and Filling Cooling System in Engine Cooling.
-Check the system for leaks.


Auto Repair Help US 699e5693-1e5b-4101-9428-b5c0b4e46f83.jpg

Sep 06, 2014 | 1997 Isuzu Hombre

1 Answer

Who knows where I can get a guide to replace the Heater Core on my 2006 Ford Freestar?


I have the shop manual & wiring book from Ford for your car. If interested, let me know. $25 plus postage.

this is a big job, time consuming. Is it leaking coolant?

Removal and Installation
NOTE: If a heater core leak is suspected, the heater core must be leak tested before it is removed from the vehicle.
  1. Drain the cooling system. For additional information, refer to Section 303-03.
  1. Position the front seats fully rearward.
  1. Depower the supplemental restraint system. For additional information, refer to Section 501-20B.
  1. Remove the wiper motor and pivot assembly. For additional information, refer to Section 501-16.
  1. Remove the LH and RH windshield side garnish mouldings. For additional information, refer to Section 501-05.
  1. Remove the LH and RH A-pillar lower trim panels. For additional information, refer to Section 501-05.
  1. Disconnect the heater hoses from the heater core.
  1. Lower the glove compartment.
  1. Remove the 3 steering column opening panel lower bolts.
    • To install, tighten to 8 Nm (71 lb-in).
  1. Remove the steering column opening panel cover.
  1. Remove the steering column opening panel upper bolts.
    • To install, tighten to 8 Nm (71 lb-in).
  1. Remove the steering column opening panel reinforcement.
  1. Remove the 4 storage console pin-type retainers.
  1. Remove the storage console.
  1. Remove the rear seat floor duct adapter.
  1. Remove the upper instrument panel finish panel.
  1. Remove the LH lower instrument panel bolt.
    • To install, tighten to 12 Nm (9 lb-ft).
  1. Remove the LH upper instrument panel bolt.
    • To install, tighten to 12 Nm (9 lb-ft).
  1. Remove the 4 upper instrument panel bolts.
  1. Remove the upper instrument panel cowl bolt.
    • To install, tighten to 5 Nm (44 lb-in).
  1. Remove the 4 instrument panel center support brace bolts.
    • To install, tighten to 12 Nm (9 lb-ft).
  1. Remove the LH instrument panel support bracket bolt.
    • To install, tighten to 12 Nm (9 lb-ft).
  1. Loosen the RH instrument panel bolts one half of the bolt length, but do not completely remove the bolts.
    • To install, tighten to 12 Nm (9 lb-ft).
  1. Working through the glove compartment opening, remove the RH instrument panel support bracket bolt.
    a0083958.jpg
  1. Position the LH side of the instrument panel slightly away from the dash panel.
  1. Remove the heater core and evaporator core housing support brace nut.
  1. Remove the heater core and evaporator core housing support brace bolt.
  1. Remove the heater core and evaporator core housing support brace.
  1. Remove the 4 floor duct screws.
  1. Remove the floor duct.
  1. Remove the 7 heater core cover screws.
  1. Detach the wire harness from the heater core cover.
  1. Remove the heater core cover.
  1. Remove the heater core.
  1. To install, reverse the removal procedure.
  1. Fill the engine cooling system. For additional information, refer to Section 303-03.

Oct 31, 2011 | 2006 Ford Freestar

1 Answer

On the 1998 ford explorer heater core removal i can see the bolt or nut thats directlly behind the engine block,how do i gain access are what is the process to gain access to the bolt or nut?


SECTION 412-02: Heating/Defrosting 1998 Explorer/Mountaineer Workshop Manual REMOVAL AND INSTALLATION Heater Core Removal
  1. NOTE: If a heater core leak is suspected, the heater core must be leak tested before it is removed from the vehicle. For additional information, refer to Section 412-00 .
    Drain the radiator. For additional information, refer to Section 303-03 .
  1. Remove the heater water hoses.
    1. Squeeze the clamps and pull the hoses off.
    1. Disconnect the vacuum hose from the water control valve.
  1. Remove the instrument panel. For additional information, refer to Section 501-12 .
  1. Remove the A/C evaporator core housing. For additional information, refer to Section 412-03 .
  1. Remove the A/C evaporator core housing. For additional information, refer to Section 412-03 .
  1. Remove the powertrain control module (PCM). For additional information, refer to Section 303-14 .
  1. Remove the PCM heat sink.
    1. Remove the ground strap screw.
    1. Remove the heat sink.
  1. Remove the heater air plenum nuts from the engine side of the dash panel.


  1. Remove the heater core.
    1. Remove the heater core cover to air plenum screws.
    1. Lift off the cover.
  1. Remove the heater core (18476).
  2. snorkelbobby_34.gif

Feb 05, 2011 | Ford Expedition EL Cars & Trucks

2 Answers

Leaking on the passenger side, next to centre console. Dropping water level in so that it needs refilling almost daily 0.5 litre+. How do you fix it or can get a quote.


your heater core is leaking, need to replace it or u can put a hose connector to by-pass heater, this is done for temporary repair only. under hood look for two coolant hoses that go into firewall of veh. and install a hose connector that is same outside diameter of the inside of hoses & install two clamps to keep pressure from coming out.

Jan 15, 2011 | 1998 Subaru Legacy

1 Answer

Need to replace heater core for Ford Taurus 2000


Heater and Evaporator Core Housing Removal & Installation To Remove:
  1. Recover the refrigerant.
  2. Remove the instrument panel.
  3. Remove the right side cowl vent screen.
  4. Remove the screws and the water shield.
  5. Disconnect the vacuum supply hose.
  6. Clamp off and disconnect the heater hoses at the firewall.
  7. Disconnect the evaporator outlet spring lock coupling. Discard the O-rings.
  8. Remove the two condenser-to-evaporator line bracket bolts.
  9. Disconnect the evaporator inlet spring lock coupling. Discard the O-rings.
  10. Remove the three nuts at the dash panel.
  11. Remove the screws and the heater outlet floor duct.
  12. Remove the evaporator core housing bolt and nut.
  13. Remove the heater and evaporator core housing.
Heater and evaporator core housing removal/installation ford-10-00-404.gif

To Install:
  1. Install the heater and evaporator core housing in the vehicle. Secure the mounting nut and bolt.
  2. Install the heater outlet floor duct. Secure with the mounting screws.
  3. Install the three mounting nuts to the dash panel. Tighten to 53 in-lb (6 Nm).
  4. Install new refrigerant system O-ring seals lubricated in clean mineral oil. Connect the evaporator lines.
  5. Install the two condenser-to-evaporator line bracket bolts. Tighten to 80 in-lb (9 Nm).
  6. Connect the hoses to the heater core connections. Lubricate the coolant hoses with plain water only, if needed.
  7. Connect the vacuum supply hose.
  8. Install the screws and the water shield.
  9. Install the right side cowl vent screen.
  10. Install the instrument panel.
  11. Lubricate the refrigerant system with the correct amount of clean PAG oil.
  12. Evacuate, leak test and charge the A/C system.
  13. Add coolant as needed.
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Jan 08, 2011 | 2000 Ford Taurus

2 Answers

Windows get like a foggy film and smells like old antifreeze. i think its my heater core? its a 95 bronco & where is it located exactly on that model?


Dear Foggy Film......
You are correct!!! This foggy film is the result of the antifreeze leaking and then evaporating inside the cab of the vehicle. The heater core on this vehicleis located inside the evaporator case inside the vehicle's cab on the firewall up underneath the dash closer to the passenger's side. It involves about three hours labor to replace the heater core.This is a moderate to mildly intensive repair for the first timer..if you have any more questions then you're more than welcome to get back to me!!!! HOPE I COULD HELP!!!

Nov 17, 2009 | 1998 Ford Contour

1 Answer

How to replace heater core in a 1988 jeep cherokee?


Jeep Cherokee XJ Heater Core

Work for '92 models, but can use it like a reference guide.

6042054.gif

Figure 1

  1. Disconnect battery ground cable, then drain cooling system.
  2. Disconnect hoses from heater core.
  3. If equipped with A/C, remove evaporator/blower housing as follows:
    1. Discharge A/C system, then disconnect hoses from expansion valve.
    2. Disconnect electrical connector and vent tube from blower motor.
    3. Remove console, if equipped.
    4. Remove lower instrument panel attaching screws, then the lower panel.
    5. Disconnect electrical connections from A/C relay, blower motor resistors and A/C thermostat.
    6. Disconnect vacuum hose from vacuum motor.
    7. Cut evaporator/blower housing to heater core housing retaining strap, then disconnect heater control cable.
    8. Pry retaining clip from rear of blower housing flange, then remove the three retaining screws.
    9. Working from engine compartment, remove evaporator/blower housing attaching nuts, then the evaporator drain tube, Figure 1.
    10. Remove right kick panel, then the instrument panel support bolt.
    11. Pull right side of dash outward, then rotate housing downward and towards rear of vehicle until studs clear dash panel. Remove housing from vehicle.
  4. Remove heater core to housing retaining screws, then the heater core, Figure 2.
  5. Reverse procedure to install.
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Figure 2

Personally, I'd pressure test the cooling system then look at the heater core to see if it leaks. It may just be a loose clamp or leaky hose.

Also can check the forum jpmagazine.com

I hope help you; good luck (remember rated this).

Sep 15, 2009 | Jeep Cherokee Cars & Trucks

2 Answers

Leak in eavaporer coil how do i get to it


The evaporator coil is located in the heater-A/C housing, under the instrument panel.

The heater-A/C housing assembly must be removed from the vehicle and the two halves of the housing separated for service access of the heater core, evaporator coil, blend-air door, and each of the various mode control doors.

WARNING: On vehicles equipped with airbags, refer to Airbag Systems Safety Information and Procedures. Before attempting any steering wheel, steering column, or instrument panel component diagnosis or service. Failure to take the proper precautions could result in accidental airbag deployment and possible personal injury. See: Restraint SystemsAir Bag SystemsService Precautions

REMOVAL
  1. Disconnect and isolate the battery negative cable.
  2. Remove the instrument panel from the vehicle.
  3. If the vehicle is not equipped with air conditioning, go to Step 6. If the vehicle is equipped with air conditioning, recover the refrigerant from the refrigerant system.
  4. Disconnect the liquid line refrigerant line fitting from the evaporator inlet tube.
    • Install plugs in, or tape over all of the opened refrigerant line fittings.
  1. Disconnect the accumulator inlet tube refrigerant line fitting from the evaporator outlet tube. See Refrigerant Line Coupler for the procedures.
    • Install plugs in, or tape over all of the opened refrigerant line fittings.
  1. Drain the engine cooling system.
  2. Disconnect the heater hoses from the heater core tubes. Install plugs in, or tape over the opened heater core tubes.
  3. Unplug the heater-A/C system vacuum supply line connector from the tee fitting near the heater core tubes.
Unplug the heater-A/C unit wire harness connector, which is fastened to the heater-A/C housing next to the blower motor relay.
  1. Remove the five nuts from the heater-A/C housing mounting studs on the engine compartment side of the dash panel. Remove or reposition the evaporation canister for additional access, if required.
  2. Pull the heater-A/C housing rearward far enough for the mounting studs and the evaporator condensate drain tube to clear the dash panel holes.
  3. Remove the heater-A/C housing from the vehicle.
INSTALLATION
  1. Position the heater-A/C housing to the dash panel. Be certain that the evaporator condensate drain tube and the housing mounting studs are inserted into their correct mounting holes.
  2. Install and tighten the five nuts onto the heater-A/C housing mounting studs on the engine compartment side of the dash panel. Tighten the nuts to 6.2 Nm (55 in. lbs.) .
  3. If the evaporation canister was repositioned during the removal procedure, reinstall it to its proper position.
  4. Connect the Heater-A/C system vacuum supply line connector to the tee fitting near the heater core tubes.
  5. Unplug or remove the tape from the heater core tubes. Connect the heater hoses to the heater core tubes and fill the engine cooling system.
  6. If the vehicle is not equipped with air conditioning, go to Step 10. If the vehicle is equipped with air conditioning, unplug or remove the tape from the accumulator inlet tube and the evaporator outlet tube fittings. Connect the accumulator inlet tube coupler to the evaporator outlet tube.
  7. Unplug or remove the tape from the liquid line and the evaporator inlet tube fittings. Connect the liquid line coupler to the evaporator inlet tube.
  8. Evacuate the refrigerant system.
  9. Charge the refrigerant system.
  10. Install the instrument panel in the vehicle.
  11. Connect the battery negative cable.
  12. Start the engine and check for proper operation of the heating and air conditioning systems.



Jul 27, 2009 | 2000 Jeep Cherokee

1 Answer

This is ''pops'' moore again!trying to save a $ You helped me before on the firing order.went to a/c guy.he tested system,said evaporator was bad and needed to be changed.his est.was my first born and a...


I assume he used a leak tester and found a leak in the evap which is inside the plenum housing. Need to remove the plenum to get access to the evap. big job. If you are technical, you could remove the plenum assembly and let him replace the evap & then let you out the plenum back in. Then take back to have him evacuate and recharge system.
-------------------------------
SECTION 412-03: Air Conditioning 1999 Town Car Workshop Manual
REMOVAL AND INSTALLATION Evaporator Core Removal and Installation
NOTE: The evaporator core is not separately serviceable. It is serviced only with the evaporator core housing assembly.
NOTE: Installing a new suction accumulator is not required when repairing the refrigerant system except when there is physical evidence of system contamination from a failed A/C compressor or damage to the suction accumulator.
NOTE: If an evaporator core leak is suspected, the evaporator core must be leak tested before it is removed from the vehicle. For additional information, refer to Section 412-00 .
  1. Remove the evaporator core housing. For additional information, refer to Section 412-02 .
  1. Transfer the components from the old evaporator core housing to the new evaporator core housing
  1. Install the evaporator core housing. For additional
  2. information, refer to Section 412-02
---------------------------------------------------------------------------
Evaporator Core Housing Removal
  1. Disconnect the battery ground cable (14301).
  1. Recover the refrigerant. For additional information, refer to Section 412-00 .
  1. Drain the radiator. For additional information, refer to Section 303-03 .
  1. Remove the screws and the RH cowl vent screen.
  1. Disconnect the vacuum hoses and the wire harness connector from the evaporative emission canister purge valve (EVAP canister purge valve) (9C915).
  1. Remove the nuts and remove the evaporative emission canister purge valve.
  1. Remove the heater hoses from the heater core.
  1. Remove the screw and reposition the windshield washer fluid reservoir.
  1. Disengage the four wire harness retainers from the top of the RH fender apron.
  1. Remove the RH front wheel and tire.
  1. Remove the screws from the RH fender apron and remove the fender apron.
  1. Disconnect the wire harness connector from the A/C cycling switch (19E561).
  1. Disconnect the wire harness connector from the blower motor (18527).
  1. Disengage the wire harness connector from the retainer.
  1. Disconnect the evaporator to compressor suction line from the suction accumulator/drier (19C836). For spring lock couplings disconnect and connect general procedure, refer to Section 412-00 .
  1. sxg~us~en~file=ani_caut.gif~gen~ref.gif CAUTION: To prevent damage to the fitting and the tube, use a backup wrench when removing the suction accumulator/drier.
    Disconnect the suction accumulator/drier from the A/C evaporator core.
  1. Remove the clamp screw retaining the A/C accumulator mounting bracket to the A/C evaporator core housing and remove the suction accumulator/drier.
  1. Disconnect the condenser to evaporator tube from the A/C evaporator core (19860). For spring lock couplings disconnect and connect general procedure, refer to Section 412-00 .
  1. Remove the RH instrument panel insulator.
    • Remove the pushpins.
    • Disengage the courtesy lamp holder.
    • Disconnect the power point wire harness connector and remove the RH instrument panel insulator.
  1. Remove the in-car temperature sensor hose and elbow from the evaporator housing.
  1. Remove the nuts at the top of the evaporator housing.
  1. Remove the nuts at the bottom of the evaporator housing.
  1. Remove the screw and nut near the blower motor.
  1. Remove the screws.
  1. Separate the housing and remove the blower motor and A/C evaporator core.
  1. Disconnect the wire harness connector.
  1. Remove the evaporator core cover.

Apr 06, 2009 | 1999 Lincoln Town Car

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