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Replace heater core in pontiac grand am

How to replace heater core 1994 pontica grand am

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  • Cars & Trucks Master
  • 937 Answers

Depends on your mechanic. I can tell you how its done: Replacing the heater core in a Pontiac Grand Am is simple enough. But reaching the core is another matter. It is positioned behind the instrument panel, which must be removed. Confirm etc---------------------------------------------------------------------------------------
vag tacho 5.0

Posted on Jan 18, 2013

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Posted on Jan 02, 2017

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johnsmith992
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SOURCE: Replace heater core in Pontiac Grand Am GT 3.4l

ram a sharp chissel or pointed head centre punch through the core and prise it out .,than tap the new one in place ,,,there u go bobs ure uncle

Posted on Jan 29, 2009

michigan man
  • 3533 Answers

SOURCE: need instructions to replace 1994 Rodeo heater core

try autozone.com to see if they have your car listed for diagrams pictures and step by step instructions if your car is not listed then try your local library they have all the car manuals and even copy them for you

Posted on Mar 12, 2009

  • 6982 Answers

SOURCE: my Backup light are not working on my 98 Pontica Grand Prix.

First check for power at the light sockets and make sure they are properly grounded. The neutral start switch should also be the backup light switch (located on the transmission at the shift lever). If vehicle is starting in the correct shift positions, likely it is adjusted properly. However, have someone watch the backup lights and move shift lever through the gears. if while moving lever lights flash, switch may be slightly out of adjustment. Pink or dark blue wire should be power supply to switch, light green should send power to lights.This is powered by a 15a fuse on the fuse panel.

Posted on Apr 06, 2009

  • 454 Answers

SOURCE: How do replace heater core in 2002 Pontiac Gran Prix

i do believe you have to take the passengers side dash apart behind the glove compartment. go to autozone and get a manual or go to the library and check the chiltons manual. this is not an easy job. how bad is the leak? if its not bad these heater cores are made of all aluminum. i would buy a bottle of that radiator additive and see if that takes care of the problem first. it only cost about 5 bucks a bottle and it may permanantly fix your problem.

Posted on Aug 13, 2009

c17hydro
  • 2984 Answers

SOURCE: Replace heater core in 1994 pontiac grand am

Removal & Installation


  1. Disconnect the negative battery cable.
  2. Drain and recycle the engine coolant.
  3. Raise and safely support the front of the vehicle.
  4. If necessary, remove the rear lateral transaxle strut mount.
  5. Detach the drain tube, then disconnect the heater hoses from the core tubes.
  6. Carefully lower the vehicle.
  7. Remove the console if equipped.
  8. Unfasten and remove the sound insulators, console extensions and/or steering column filler, as required.
2a4e97b.gif
Unfasten the sound insulator retaining bolts ...

7ed3765.gif
... then remove the sound insulator

  1. On some models it may be necessary to remove the steering column opening filler.
  2. Remove the floor or console outlet ductwork and hoses.
  3. Remove the heater core access cover.
a5f8d39.gif

Remove the heater core access cover

Unfasten the heater core mounting clamps/bolts, then extract the heater core from the vehicle.

a5c4734.gif
Unfasten the heater core retaining bolts; most later models are secured with clamps.

b2756d9.gif
Remove the heater core from the vehicle

To install:
  1. Install the heater core, then secure using the clamps/bolts.
  2. Fasten the heater core cover.
  3. Connect the outlet hoses and ducts.
  4. Install the sound insulators, console extensions and/or steering column filler.
  5. Raise and safely support the vehicle.
  6. Install the drain tube and connect the heater hoses to the core tubes.
  7. If removed, install the rear lateral transaxle strut mount, if removed.
  8. Carefully lower the vehicle.
  9. Connect the negative battery cable.
  10. Fill cooling system and check for leaks. Start the engine and allow to come to normal operating temperature. Recheck for leaks and check coolant level. Add if necessary.

Posted on Nov 13, 2009

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1 Answer

I have a 1994 pontiac grand prix 3.4 liter and i need to change the heater core so how do i do that


Here's a link on replacing your heater core,just did mine on my 85 Nissan 720,got good heat now,mine was leaking,causing all my windows to fog up. Save 20 On Online Ship To Home Orders Of 100 Or More

Aug 23, 2014 | 1994 Pontiac Grand Prix

1 Answer

Coolant leaking


Sounds like a heater core seal busted, check if you got water leaking into the passengers floor. If so, you got a bad heater core

Dec 26, 2013 | 1994 Pontiac Grand Am

1 Answer

Heater core replacement for a 94 Pontiac grand am


This is an ugly job, and easy to break fragile and hard to get parts. Consider letting a shop do this job...

Sep 06, 2010 | 1994 Pontiac Grand Am

1 Answer

Where is ac evaporator


Under the dash board below heater core.

May 20, 2010 | 1999 Pontiac Grand Prix

1 Answer

Heater core leak on a 1994 pontiac grand am se


first check to make sure that the hose,s back there didn't crack / of there fine then the heater core has blowen open and is know leaking / if you are in an aera that diesn't get real cold take the hoses off and route one to the other till you can get it fixed

Feb 25, 2010 | 1994 Pontiac Grand Am

1 Answer

Replace heater core in 1994 pontiac grand am


Removal & Installation


  1. Disconnect the negative battery cable.
  2. Drain and recycle the engine coolant.
  3. Raise and safely support the front of the vehicle.
  4. If necessary, remove the rear lateral transaxle strut mount.
  5. Detach the drain tube, then disconnect the heater hoses from the core tubes.
  6. Carefully lower the vehicle.
  7. Remove the console if equipped.
  8. Unfasten and remove the sound insulators, console extensions and/or steering column filler, as required.
2a4e97b.gif
Unfasten the sound insulator retaining bolts ...

7ed3765.gif
... then remove the sound insulator

  1. On some models it may be necessary to remove the steering column opening filler.
  2. Remove the floor or console outlet ductwork and hoses.
  3. Remove the heater core access cover.
a5f8d39.gif

Remove the heater core access cover

Unfasten the heater core mounting clamps/bolts, then extract the heater core from the vehicle.

a5c4734.gif
Unfasten the heater core retaining bolts; most later models are secured with clamps.

b2756d9.gif
Remove the heater core from the vehicle

To install:
  1. Install the heater core, then secure using the clamps/bolts.
  2. Fasten the heater core cover.
  3. Connect the outlet hoses and ducts.
  4. Install the sound insulators, console extensions and/or steering column filler.
  5. Raise and safely support the vehicle.
  6. Install the drain tube and connect the heater hoses to the core tubes.
  7. If removed, install the rear lateral transaxle strut mount, if removed.
  8. Carefully lower the vehicle.
  9. Connect the negative battery cable.
  10. Fill cooling system and check for leaks. Start the engine and allow to come to normal operating temperature. Recheck for leaks and check coolant level. Add if necessary.

Nov 13, 2009 | 1994 Pontiac Grand Am

1 Answer

1994 pontiac grand prix leaking water


It sounds like either the heater valve which may be located inline with a 5/8" hose or 3/4" hose or the heater core is leaking, a heater core is like a small radiator.

Feb 19, 2009 | 1994 Pontiac Grand Prix

2 Answers

Pontiac grand am 1994 water comes out overflow


First question: why was the heater core replaced. Was it leaking water inside the car? Or was it replaced due to no heat inside the car. If it was replaced due to no heat inside the car, the shop you had taken it to shouldn't have replaced the heater core until they conducted tests of why there was no heat even if the customer insists on replacing the heater core. The reason why I'm asking is there's a possibility of the head gasket was leaking causing the poor circulation of the water to the heater core. If so, you may have replaced the heater core for no reason and most likely cost you a bunch of money. I live by this rule in our shop: DON'T JUST THROW PARTS AT THE CAR! You 'll end up spending way more money than you needed to.

Feb 12, 2009 | 1994 Pontiac Grand Am

1 Answer

I need to replace my heater core


Bad news. You will have to remove the entire dash board to replace that heater core. Sorry

Jan 12, 2009 | 1994 Pontiac Grand Prix

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