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Fixing heater core on Mercury Villager front one

Fixing heater core on1996 Mercury Villager front one

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Heater Case Removal

  1. Drain the engine coolant. Refer to Section 03-03 for the procedure.
  2. Disconnect the battery ground cable (14301).
  3. Disconnect the heater water hoses (18472) from the heater core (18476) at the bulkhead.
  4. Remove the instrument panel lower center panel (04494). Refer to Section 01-12 for the removal procedure.
  5. Remove the glove compartment and LH instrument panel lower cover (044L97). Refer to Section 01-12 for the removal procedure.
  6. Remove the instrument panel ash receptacle (04810).
  7. Remove the two upper center instrument panel finish panel screws and the two lower center instrument panel finish panel screws.

  8. Remove the center instrument panel finish panel (044D70) and disconnect the cigar lighter socket and cigar lighter illumination lamp electrical connectors.
  9. Remove the four radio chassis bracket screws and pull the radio chassis (18806) and climate control assembly from the instrument panel (04320). Disconnect the radio chassis electrical connectors, the antenna lead, the three climate control electrical connectors and remove the radio chassis and climate control assembly.
  10. Remove the two heater outlet floor duct screws. Remove the heater outlet floor duct (18C433).

  11. Remove the four RH instrument panel lower reinforcement bolts and the RH instrument panel lower reinforcement (045F08), then the four LH instrument panel lower reinforcement and the LH instrument panel lower reinforcement.
  12. Remove the anti-lock brake control module (2B373). Refer to Section 06-09 for the removal procedure.
  13. If equipped, remove the speed control amplifier. Refer to Section 10-03 for the removal procedure.
  14. Remove the electronic door lock control processor (14B001). Refer to Section 01-14A for the removal procedure.
  15. Remove the passive restraint control module. Refer to Section 01-20B for the removal procedure.
  16. Remove the two center duct screws and remove the center duct (19D633).

  17. Remove the two ground wire bolts.
  18. Remove the three U-bracket-to-chassis nuts.

  19. Remove the four U-bracket bolts and remove the U-bracket.

  20. Remove the two RH and the two LH instrument panel bracket bolts and remove the instrument panel brackets (042C74).
  21. Remove the RH inner duct.
  22. Remove the LH inner duct.
  23. Remove the two accelerator pedal and shaft bolts and then the accelerator pedal and shaft (9725).
  24. Remove the accelerator pedal stop screw and then the accelerator pedal stop (9816).
  25. Remove the heater outlet duct screw and remove the heater outlet duct.
  26. Remove the temperature blend/panel bypass door actuator motor. Refer to the procedure in this section.
  27. Remove the panel/floor/defrost door actuator motor. Refer to the procedure in this section.
  28. Remove the three A/C evaporator register duct screws and remove the A/C evaporator register duct.
  29. NOTE: The A/C evaporator/blower motor assembly does not have to be removed in order to remove the heater assembly.

    Remove the four A/C evaporator/blower motor assembly screws to aid in the removal of the heater assembly.
  30. Remove the four heater assembly screws.
  31. Remove the heater assembly.

Posted on Oct 07, 2009


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SOURCE: heater core

it is located under the dashboard against the firewall of the passenger seat. i recomend buying a repair manual from your local auto parts store before attempting as it requires draining, flushing, refilling and bleeding the cooling system as well as removing many other componets like the entire dashboard and thermostat

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SOURCE: replace heater core 1995 Mercury Villager

Unfortunately, this is one of the most complex and time consuming operations, short of changing the engine/transmission that can be done to the car.
The heater core is mounted in a box, inside the passenger compartment, almost dead center behind the dashboard and is mounted directly on the firewall to allow the hoses to go through. If you put your hand just above the accellerator pedal, and go toward the center console, you'll find the heater core box.
There is no way to remove the heater core from the engine compartment. In fact, other than draining the radiator and removing the hose clamps and a bolt or two, youll have little interaction with the engine compartment.
Begin by disabling the air bag system, by removing all power from the vehicle. Be SURE the air bags are disabled as they are extremely dangerous if they activate while you are working under the dash.
Next remove the entire instrument panel, and all the decorative plastic. To do this you may have to remove the steering wheel also. Be sure to label everything as you go. Then remove all the heater controls. Once done, you should be able to access the black heater box that the core rests in. Remove that, and if you have loosened the hoses and screws in the engine compartment, the heater core will come free and you can replace it.
For a much better and more detailed explanation of how to do this, I used the Haynes Repair Manual. (Note, Im not affiliated with them, they just had the best description of the procedure.)
I dont really recommend doing this yourself unless you are a very patient and reasonably accomplished mechanic. This will involve removal of all the dash, instruments and controls, and frankly, even when the dealer did this, the car is never quite the same again.
One other hint, after replacing the heater core, use a length of good heavy copper wire to wrap around one of the hose entry points (metal to metal contact) and then ground the core to the engine block or frame. This will help prevent the electrolysis that killed the core the in the first place.

Posted on Oct 10, 2009

  • 41 Answers

SOURCE: My 1999 mercury villager ac works in the front but...

it needs to have the rear expansion valve to be inspected for metal, if clean repl expansion valve and recharge a/c

Posted on Jul 10, 2010

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2 Answers

I have a 1999 mercury villager with no heat is there anything I can do till find a heating core with inlets and outlet pipes

Hi Shawn,your thermostat may be stuck open,not letting your coolant heat up.check this's a link on how to replace, GET 25 GIFT CARD FOR EVERY 100 SPENT ON ONLINE SHIP TO HOME ORDERS After removing,look at it,it should be closed,to see if it is working,boil water to 180 degrees with thermostat in pot,it should open at 180,remove from water and it should close,if it's doing this,then it's good,is your water pump working properly,no leaks.Here's another link to your heater core, GET 25 GIFT CARD FOR EVERY 100 SPENT ON ONLINE SHIP TO HOME ORDERS I am fixing to replace my heater core in my 85 Nissan 720 truck,did it 10 years ago,my heat still works,but my windows fog up super fast,which means it's leaking,can put my hand on the carpet by the heater core and feel coolant,it's a job.

Nov 24, 2014 | 1999 Mercury Villager

3 Answers

Is it hard to find heater core parts for 1999 mercury villagers

Considering that your vehicle and the Nissan Quest are covered by the same service manual from Haynes, they might well have the heater core in common too:
Villager/Quest manual

Mar 09, 2011 | 1999 Mercury Villager

1 Answer

I have front and rear a/c. it has never blown heat in the back of my van and now i have smoking coming from under the hood and blowing out of the front vents. my front passanger floor board is soaked. what...

Your heater core is shot. Coolant leaking on the floor (wet) and driping onto exhaust (smoke).
Replacement of the heater core is the only proper fix. As a temporary measure , you could disconnect the hoses that run to it , and plug them (or join them together). Engine will run , but you will have NO heat in car. enough of your coolant has probably leaked out to cause engine problems. Make sure it is refilled and air removed from system before driving.

Feb 09, 2011 | 2000 Mercury Villager

1 Answer

Where is the heater control valve on a 1994 mercury villager

Off the heater hoses that connect to the heater core on back of motor by firewall.

Dec 15, 2010 | 1994 Mercury Villager

1 Answer

1997, Mercury Villager, NO HEAT. Flushed radiator, flushed heater core. Has a rear heating system, is there an additional heater core and maybe a valve in the rear heating system?

you have air trapped in system. If you could hang van like a deer in a tee, you could get the air out. Go to a sho with evac/fill equipment and have them purge the air. You are about 3 qts short of full

go here too. read cooling system files.

Nov 27, 2010 | 1997 Mercury Villager

1 Answer

My 1999 mercury villager heater is not blowing hot air

you have air trapped in the heater cores, front and back. You need to burp system or take to a shop and have them flush cooling system and use their vacuum system to purge the air. Should cost $60. Make sure they have vacuum system.

Or go to our site and read file on how to burp air from cooling system.

Dec 30, 2009 | 1999 Mercury Villager

1 Answer

Greetings. i have a 96 mercury villager that neither the front or rear ac is getting cold. fan blows hot air... was told that it did not need freon and that the compressor checked good... any other ideas

yes it sounds to me like the thermostat control on the dash is malfuctioning. either that or heater control valve under the dash that converts the flow of air around or through the heater core could be stuck in heater mode. hope this helps. i dont know your financial situation but if it was me i would aquire one from a salvage yard in order to test because that part is quiet expensive from the dealer

May 18, 2009 | 1999 Mercury Villager

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