Question about 1992 Plymouth Grand Voyager

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I have a 1992 grandvoyager se with a 3.3 litre v-6 with air conditioning and i was woundering how to replace the heater core?

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Befor you replace the heater core take a wire hanger and shove it up your drain tube , It's usually in front of firewall on the passenger side

Posted on Mar 20, 2011

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1 Answer

The heater in my 1991 wrangler doesnt give out warm air. No real heat


probably have a blockage in the heater core or heater hoses to the core

Nov 24, 2011 | 1991 Jeep Wrangler

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How do you replace the heater core in a 1992 Ford Ranger STX V-6 4.0?


May be the easiest heater core i have ever replaced.Disconnect the two hoses going into firewall on the passenger side.Locate a small cover just underneath the glove box .Should be about 10 x 3 inches and have 8 screws i think.It is on the bottom of heater box.remove the screws and cover and pull out the heater core.You are now half way.reverse procedure and you are done.Good Luck!

Mar 05, 2011 | 1992 Ford Ranger

1 Answer

I need to replace the heater core in my 1992 f-350 7.3 des.


Heater Core REMOVAL & INSTALLATION Fig. 1: Heater core removal for 1987-88 models 84926006.gif
Fig. 2: Heater core removal - 1988-96 models 84926007.gif
Without Air Conditioning
  1. Drain the cooling system to a level below the heater core. CAUTION
    When draining the coolant, keep in mind that cats and dogs are attracted by ethylene glycol antifreeze, and are quite likely to drink any that is left in an uncovered container or in puddles on the ground. This will prove fatal in sufficient quantity. Always drain the coolant into a sealable container. Coolant should be reused unless it is contaminated or several years old.
  2. Disconnect the coolant hoses at the heater core tubes.
  3. From inside the passenger's compartment, remove the 7 screws that secure the heater core access cover to the plenum chamber. Remove the cover. On some models, it might be easier to first remove the glove compartment.
  4. Remove the heater core.
  5. Installation is the reverse of removal. Replace any damaged sealer.
With Air Conditioning Fig. 3: Disconnect the heater hoses at the firewall 88286p15.jpg
Fig. 4: Remove the glovebox 88286p16.jpg
Fig. 5: Remove the heater core access cover from the plenum chamber 88286p17.jpg
Fig. 6: Remove the heater core from the vehicle 88286p18.jpg
  1. Drain the cooling system to a level below the heater core. CAUTION
    When draining the coolant, keep in mind that cats and dogs are attracted by ethylene glycol antifreeze, and are quite likely to drink any that is left in an uncovered container or in puddles on the ground. This will prove fatal in sufficient quantity. Always drain the coolant into a sealable container. Coolant should be reused unless it is contaminated or several years old.
  2. Disconnect the coolant hoses at the heater core tubes.
  3. Remove the glove compartment.
  4. Disconnect the temperature and function cables.
  5. From inside the passenger's compartment, remove the 7 screws that secure the heater core access cover to the plenum chamber. Remove the cover.
  6. Remove the heater core.
  7. Installation is the reverse of removal. Replace any damaged sealer.
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Dec 15, 2010 | 1992 Ford F350

2 Answers

HOW TO REPLACE HEATER CORE IN 1992 PLYMOUTH ACCLAIM


Inspect/Replace If it is necessary to remove the heater assembly, the cooling system must be drained before removing the heater core.
When a heater core leaks, a new heater core is installed or the old one repaired.
Heater Housing
  • The heater housing is usually under the dash and must be removed to gain access to the heater core.
  • Procedures for replacing the heater core vary with the year, make, and model of car. It threfore necessary to consult the manufacturer's repair manuals for the proper procedure for replacement.
f74-01.gif The heater housing is disassembled to get to the heater core. Heater Core
  • Remove the access panels(s) or the split heater/air conditioning case to gain acess to the heater core.
  • Remove the heater coolant hoses.
  • Remove the cable and/or vacuum control lines (if equipped).
  • Remove the heater core securing brackets and/or clamps.
  • Lift the core from the case. Do not use force. Take care not to damage the fins of the heater core when removing.
  • To reinstall the heater core, reverse the removal steps.
When the heater core leaks and must be repaired or replaced, it is a very difficult and time-consuming job primarily because of the core's location deep within the firewall of the car. For this reason always leak test a replacement heater core before installation.

Nov 25, 2010 | 1992 Plymouth Acclaim

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

Remove and replace heater core . It has air conditioning. It is a SL model.


first off, drain your coolant.

1. under your hood, loosen clamps and remove hoses from your heater core that go into your firewall.
2.
take off your dash board panel on the inside.
3. take off the vent of duct
4. take off screws and clips on the heater core cover and remove that
5. take off the straps that hold the core in place and remove. Watch not to lose too mauch, if any coolant in the core itself.
6. install new core. Please ratey answer so that I know if I was of any help to you. Thanks!

Dec 19, 2009 | 1989 Oldsmobile Cutlass Ciera

1 Answer

Help with heater core replacement - what is the easiest way to replace this?


  1. Disconnect the negative battery cable.
  2. Remove the air cleaner and duct assembly.
  3. Drain and recycle the engine coolant.
  4. Disconnect the wiper linkage from the wiper motor.
  5. Detach both heater hoses at the heater core.
  6. Remove the lower center console.
  7. Remove both instrument panel insulators.
  8. Remove the heater outlet module screws, and the heater cover.
  9. Remove the heater core mounting clip screw, and the heater core line clamp screw.
  10. Carefully pull the heater core from the case.
  11. If necessary, remove the foam seals on the heater core module for transfer to the replacement core.
  12. If necessary, remove the heater core line clamp for transfer to the replacement core.
29c879c.gif
You must disconnect the wiper linkage to allow clearance for removing the heater core coolant hoses

89b098e.gif
View of the HVAC module—1 is the A/C module, two is the front blower motor (interior mount style)

30224c8.gif
View of the heater core cover and related components

26cab80.gif
Exploded view of the heater core case assembly

f5847b9.gif
Schematic of the HVAC Module air flow controls and air path diverter doors

To install:
  1. Installation is the reversal of the removal process. Tighten the mounting screws to 27 inch lbs. (3 Nm).

Sorry but this is the only way to replace it.

Dec 07, 2009 | 1992 Chevrolet Lumina APV

1 Answer

1992 mazda mx3 heater blows warm, but not hot. Coolant is full, heater hoses are hot. What is wrong?


Hot air is dependent on the coolant temperature and the heater core. There are several things that can cause your problem. The easiest to check is the coolant level in the radiator\reservoir. There must be enough coolant to flow freely between the engine and the heater core. The next is the thermostat. If the thermostat is not closing it would prevent the the coolant from reaching a high enough temperature to allow for hot air. The thermostat is not expensive or difficult to replace. The third thing is a blockage in the heater core. Flush the coolant system properly can sometimes take care of this. If it does not the only alternative is a new heater core.
Hope this helps.

Sep 12, 2009 | 1992 Mazda MX-3

3 Answers

Water dripping inside car


It sounds like you have a drain stopped up on the air conditioner system. You have to get under the vehicle prefferably with it on a lift and clean out drain.

Jul 03, 2009 | 1992 Ford Tempo

1 Answer

Heater core replacement


You do not have to do anything with the air conditioning, its all inside car under right side of dash. 1. go under hood and unhook heater hoses and bracket( if equiped) from core tubes. 2. go under dash right side remove 13mm bolt far right under dash thats so you can pull dash out a little ways to get cover off heater where heater core is.3. 1/4 in. socket set and 1/4 in. socket take screws out holding cover on look close there is one hidden top far right can't remember how maney 5 or 6 i think, screws all out use a little finess and remove cover and there will be your heater core. Good luck.

Apr 13, 2009 | 1995 GMC Jimmy

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