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Heater core 1991 vandura - Cars & Trucks

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Posted on Jan 02, 2017

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SOURCE: where do i locate the heater core in a 1991 pontiac 6000le

The heater core is inside the heater case. It is the same plastic case that houses the blower motor. Usually they are replaced under the hood near the firewall or under the dash. I would look at the free online repair manuals provided by parts stores such as . They should have the info you need for your particular model.

Posted on Sep 22, 2009

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SOURCE: how to replace the heater core on a 1991 ford crown vic click on link to see how to remove and install Richard.

Posted on Sep 22, 2012

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1 Answer

Why 1995 gmc vandura only blow hot air while driving but sitting still cold air

Low coolant level.... restriction in heater core or vacuum problem with hot/cold blend door would be what to look at. Worst case scenerio would be headgasket issue but unlikely

Nov 15, 2015 | GMC Cars & Trucks

1 Answer

Step by step to remove heater core on 1991 corsica

Here's a link to replacing your heater core,it's a job,be sure to replace your seals that the boxes connect to each other or air will go thru,your's is probably dry rotted.Also make sure your outlets are pointing in the same direction on both heater cores,if they are different,then your heater hoses going to them will be too short,happen to me. Use a 2x4 to hold dash up,I did.Repair Guides Heater Air Conditioning Heater Core AutoZone com

Oct 13, 2014 | 1991 Chevrolet Corsica

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Van won't start,rapid clicking heard when key is turned. need help/directions replacing starter relay for gmc vandura 2500, 1991

Check battery connections and battery fuse. Battery may not be large enough for the size of your van

Jan 18, 2013 | GMC Cars & Trucks

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Sep 25, 2012 | 1987 GMC VanDura

1 Answer

How do you replace the heater core in a 1984 GMC 3500 camper

You will probably need new heater hose...first check heater hoses that run from engine to the
heater core......Most hoses will tear at the end where they are connected to the core and at the engine...First mark where each hose goes then drain coolant from system and remove both hoses...Take old hose's to parts store and get new hose's and clamps...They should be dryrotted
by the year of vehicle....It is easy to bend or break new core so be very careful when installing new core....After removing old hose's from core under hood you will know the location of the core....
remove screws under passenger side dash to remove core from inside of dash...very simple very easy....It looks like a tiny radiator with an in and an out spout...dont forget to mark where hoses
connect before removal.......Be sure and refill with new coolant/clamps/hoses because of age of vehicle...Both heater hose's that connect to the core are connected at the firewall on the passenger side of the engine...The core fits into the firewall dash and is connected to an input and an output hose...THIS IS EASY FOR BEGINNERS BUT BE CAREFUL WITH NEW CORE NOT TO BEND !!

Jul 29, 2011 | 1984 GMC VanDura

1 Answer

How to remove heater core in 1991 lincoln

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.

Jan 01, 2011 | 1991 Lincoln Continental

1 Answer

Where is the heater core in a gmc van

Welcome to

Location See figureleedavidian_32.png

1. Disconnect the battery cable.

2. Remove coolant recovery tank and lay aside.

3. Place a clean pan under the vehicle and then disconnect the heater core inlet and

outlet hoses at the heater connections. Quickly plug the heater hoses and support

them in a raised position. Allow the coolant in the heater core to drain into the pan

on the floor.

4. Remove heater distributor duct to distributor case attaching screws and distributor

duct to engine cover screw and remove duct.

5. Remove engine housing cover.

6. Remove instrument panel attaching screws: above, at windshield, all lower screws

and tight lower LP. Support bracket at door pillar and engine housing.

7. Lower steering column, and raise and support tight side of LP.

8. Remove defroster duct to distributor case attaching distributor to heater case.

9. Disconnect temperature door cable and fold cable back for access.

10. Remove three (3) nuts at engine compartment side of distributor case and one (1)

screw on passenger side.

11. Remove the heater case and core as an assembly. Tilt the case assembly rearward at

the top while lifting up until the core tubes clear the dash openings.

12. Remove the core retaining strap screws and remove the core.

13. To install a new core. Reverse Steps l-10 above. Be sure core to case and case to

dash panel sealer is intact before assembling unit.

Thank you for using

Regards, Lee Davidian

Nov 06, 2010 | 1984 GMC VanDura

1 Answer

Heater core 1991 corsica needs to be replaced. how do i get to it?

  1. Disconnect the negative battery cable.
  2. Drain the cooling system into a suitable container.
  3. Properly disable the SIR system, as outlined earlier in this section.
  4. Remove the instrument panel as outlined in this section.
  5. Remove the screws and floor outlet, turning clockwise and to the right to release from the rear floor air outlet.
  6. Raise the vehicle and support it safely.
  7. Detach the heater hoses from the heater core.
  8. Disconnect the drain tube elbow from the heater core cover.
  9. Carefully lower the vehicle.
  10. Unfasten the retaining screws, then remove the heater core cover.
  11. Remove the core screws, clamps and heater core from the vehicle.

Fig. : Exploded view of the heater core and related components - 1991-92 vehicles without A/C

To install:
  1. Reposition the heater core and install the straps and screws.
  2. Install the heater core cover and attaching screws.
  3. Install the floor outlet and retaining screws.
  4. Install the instrument panel.
  5. Raise the vehicle and support it safely.
  6. Connect the heater hoses to the heater core.
  7. Carefully lower the vehicle.
  8. Fill the cooling system with the proper type and amount of coolant.
  9. Enable the SIR system, as outlined earlier in this section.
  10. Connect the negative battery cable, then start the engine and check for coolant leaks. Check the coolant level, and add if necessary.

Hope this help (remember rated this post). Good luck.

May 15, 2010 | 1991 Chevrolet Corsica

1 Answer

How to change the heater core in a 1991 ford f150

remove the glovebox and there should be a cover for the heater core there is five or six screws that hold it on remove the heater hoses and pull the heater core out

Jul 18, 2009 | 1991 Ford F150

1 Answer

Where do i locate the heater core in a 1991 pontiac 6000le

The heater core is inside the heater case. It is the same plastic case that houses the blower motor. Usually they are replaced under the hood near the firewall or under the dash. I would look at the free online repair manuals provided by parts stores such as . They should have the info you need for your particular model.

Jun 03, 2009 | 1991 Pontiac 6000

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