Question about 1997 Pontiac Bonneville
When i try to set heater temp; whether manually or automatically, and the blower speed, it does not respond. It turns on and off when it wants, even when car is setting still. When the unit is working, there are no problems, the blower sounds good and temp. is fine. Is there any kind of programming in the system that could have messed up cause it seems like mechanically its working? Recently it hasn't been working at all. The settings are showing that it should be working but it isn't.
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Posted on Jan 02, 2017
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Posted on Feb 04, 2009
It is located under the drivers side floor acessable from under the vehicle.
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Posted on May 26, 2009
that part # is wrong, that part number is for chev pickups etc. the correct # is 25678792 for 97-99 bonneville and works for some others too!
Posted on Sep 09, 2009
The blower on my 2005 Bonny GXP quit at about 60,000 miles (I really like using High). The blower is under the passenger dash. Mine had a three wire connector. The center wire should have 12 volts. It doesn't take very long to pull the fan out. Mine was toasted. Aftermarket fan was about $130.
See this website for my instructions:
Posted on Oct 09, 2009
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!
Posted on Oct 28, 2009
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