Question about 1997 Pontiac Grand Am

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I am needing to know how to unistall and then install new heater core for a 1997 pontiac grand am

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The heater core is a bit tricky and time-consuming, but you can do it if you take your time.

Remove the following:
1. Negative battery cable from the battery (just to be safe)
2. Drain the cooling system. There is a valve at the bottom of the radiator for this purpose.
3. Raise the front of the vehicle.
4. Disconnect the A/C drain tube (it is just a small tube that allows condensation from the evaporator to drain outside of the car)
5. Remove the heater hoses from the heater core. These are only accessible from underneath the car and run through the firewall.
6. Center console
7. The kick panels/under-dashboard sound insulators
8. the filler around the steering column. This just pulls off if I remember correctly
9. floor air outlet duct (also just pulls off if I remember correctly)
10. heater core cover - this is held on with several screws - maybe even a dozen or so. It is much easier to get access if you pull the carpet out of the way first.
11. remove the heater core mounting clips and the heater core.

Installation is the opposite of removal.

Be prepared to have a sore back/ribs after doing this. You'll definitely want a flashlight and maybe a mirror to help you see under the dash board.


Posted on Jul 03, 2009


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I need to install a heater core for a 2001 Pontiac bonneville I need instructions on how to remove and install it.

  1. Disconnect the negative battery cable.
  2. Drain the cooling system into a clean container for reuse.
  3. Remove or disconnect the following:
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    • Right sound insulator
    • All necessary electrical connectors and remove the instrument panel compartment
    • Temperature valve actuator
    • Electrical connector and remove the HVAC programmer
    • Heater core cover-to-heater assembly screws and the cover
    • Heater core-to-heater assembly screws and the heater core Fig. 1: View of the heater hoses and clamp positions — 1997–01 Bonneville and LeSabre 93111g71.gif
      Fig. 2: View of the heater core cover — 1997–01 Bonneville and LeSabre 93111g72.gif
    To install:
  4. Install or connect the following:
    • Heater core and the heater core-to-heater assembly screws, then, tighten the screws to 12 inch lbs. (1.4 Nm)
    • Heater core cover and the cover-to-heater assembly screws, then, tighten the screws to 12 inch lbs. (1.4 Nm)
    • HVAC programmer and connect the electrical connector
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  5. Refill the cooling system.
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Jul 01, 2010 | 2001 Pontiac Bonneville

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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)
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Nov 30, 2009 | 1997 Pontiac Grand Am

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Need to replace heater core on 1997 grand am se where is it located and what has to be removed to get at it?

It is located inside the heater box behind the dash on the passenger side,there are numerous small screw bolts holding a cover on remove glove box and anything else in your way to access these bolts remove cover and then remove heater hoses on outside at firewall after draining cooling system,then unbolt heater core and replce it.

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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

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I need to replace my heater core

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

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