Question about 1997 Pontiac Bonneville

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I need copies of the instructions to replace the heater core on a 1997 Pontiac Bonneville. I want copies from the actual GM Shop Service manual only.

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You can get the actual service manuals at faxonautoliterarure.com and have them for future reference as well. Hope this helps.

Posted on Nov 10, 2010

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1 Answer

I have a 1997 pontiac bonneville i have a few issues. One is it just started getting soaked front and back passenger floor boards. Sonetimes will steam on window how do i check to see if its for sure


Check and see if your heater core is leaking. A leaking heater core will cause your windows to steam up and leak fluid on the floor. also cause every thing to get sticky a feeling if it continues to leak. Should repair ASAP. Needs to be replaced.

May 07, 2017 | Pontiac Cars & Trucks

1 Answer

Heater core leaking


Must replace the heater core. Its usually a very hard job that requires disassembly of the dash. If you insist on doing the job yourself, I suggest getting a repair manual from your local auto parts store so you can use it as a reference as you work. Here is a link to a video on a 98, yours will be very similar: http://www.youtube.com/results?search_query=1991+Pontiac+Bonneville+heater+core+replacement&sm=12

Dec 09, 2013 | 1991 Pontiac Bonneville

1 Answer

Heater core


Remove the dash, remove all fasteners and seperate the heater core housing, remove the core. Install in reverse order. Its a tough job for a novice, i suggest let a shop do it.

Dec 06, 2013 | 1993 Pontiac Bonneville

1 Answer

My heat is not working in a 97 pontiac bonneville


You have correctly trouble shot a plugged heater core. Install a back flush kit on the car. They can be had at an auto parts store. Get new anti freeze too.

Jan 13, 2013 | 1997 Pontiac Bonneville

1 Answer

My 1997 bonneville has no heat. The controls work and the heater hoses are hot in the engine compartment.


try changing the thermostat,if doesn't help could be heater core,check.










TIM...........

Oct 22, 2010 | 1997 Pontiac Bonneville

1 Answer

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


prev.gif next.gif HEATER CORE REMOVAL AND INSTALLATION 1997–01 Models BONNEVILLE AND LESABRE
  1. Disconnect the negative battery cable.
  2. Drain the cooling system into a clean container for reuse.
  3. Remove or disconnect the following:
    • Heater hoses from the heater core
    • 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
    • Temperature valve actuator
    • Instrument panel compartment and connect any necessary electrical connectors
    • Right sound insulator
    • Heater hoses to the heater core
  5. Refill the cooling system.
  6. Connect the negative battery cable.
  7. Operate the engine to normal operating temperatures; then, check the climate control operation and check for leaks.

Jul 01, 2010 | 2001 Pontiac Bonneville

2 Answers

My heat or my air doesn't work in my 1995 Pontiac Bonneville but it blows good. What could be the issue?


my 2004 pontaic bonneville the heater hoses going into and out from the heater core are hot , but the heater blow cold air. ,

Oct 16, 2009 | Pontiac Bonneville Cars & Trucks

2 Answers

1997 Bonneville SSE, when the heater is turned on, only cold air


you may have a failed blend air door motor/actuator. this part will regulate the amount of air from the heater core depending on the temp setting on your electronic climate control unit. if it has failed, it will be stuck at the temp that it was last set at when it quit working. it is also possible the heater core may be plugged up, but using the gm recommended dexcool coolant and flushing it out every 5 years, it should not be plugged up. you can pull the 2 heater hoses off the heater core on the passenger side of the engine compartment firewall and see if the heater core is the problem. caution-do not use a high pressure air hose to blow through the heater core as this could damage it and cause a leak!

Oct 15, 2009 | 1997 Pontiac Bonneville

1 Answer

1997 bonneville ssei


Grab yourself a cable type hose clamp tool.. a long pair of hose removal pliers. drain the radiator and remove the hose clamps and hosed from the passenger side firewall ( hidden behind the A/c acumulator ).
from the passenger side remove the end cap from the heater box under the dash. take it out and put it back together in the reverse order.

Nov 02, 2008 | 1997 Pontiac Bonneville

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