Question about 2005 Pontiac Grand Prix

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Where is the heater core located on the 2005 pontiac grand prix? how do i replace it?

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Almost all heater cores are located under the dashboard, just above the passenger's feet, encased in a black plastic box. It ain't easy to take the dash apart and change it. I would first make sure it is not under the GM warranty as 5 years is too short a life for the core. If it is out of warranty then I would get a new core at a parts store and pay an auto heating and air conditioning repair shop to put it in. That way you beat the high dealer parts and labor price.

Posted on Oct 07, 2010

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Posted on Jan 02, 2017

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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

  • 6982 Answers

SOURCE: where is the heater core located in 1997 pontiac grand prix

Core is dead center in front of the shift console. There is a bunch of plastic that needs to be removed to get to it, including (on most) the console.
Hardest part of job is getting to the heater hose ends on the firewall (difficult to get to from above or underneath unless it's on a lift, but not impossible) Haynes and Chilton have pretty good instructions for that job and you can use the manuals for other stuff as well...(about $20)
Job takes some time but is much easier than a Jeep!!!! (all day job)
Good luck

Posted on Nov 30, 2009

dennymulford
  • 1055 Answers

SOURCE: where is the heater core located in 1997 pontiac

its under the dash in the center

Posted on Nov 30, 2009

BCAS1298
  • 3092 Answers

SOURCE: leaking water from heater core 1999 gran prix

If leaking coolant under dash on passenger side floor broad it's your heater core. Call's for 2.8 labor flat time to remove heater core, in some case's you'll have to recover, evacuate and recharge your A/C system to remove your heater core.Sit under dash on passenger side.

Posted on Dec 28, 2009

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csmock132
  • 4669 Answers

SOURCE: locate the heater core on

It is under the center of the dash.

Posted on Oct 30, 2010

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1 Answer

How to install a heater core in a 2002 pontiac grand prix SE


The heater core is under the dash. Go to autozone.com and register with them. Look up heater core in repairs. They will give you free instructions on how to remove and install.

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