Last post on Feb 13, 2013 at 7:44 PM
You are in the Pontiac Bonneville
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Pontiac Bonneville, Heating / Cooling, Sedan
#1 of 231 Heat Problem with 1993 SSE
Mar 12, 2007 (11:35 am)
I have a 1993 Bonneville SSE. I was not getting any heat. I sent it to a local garage and they replaced the temp sensor and the programmer. The mechanic said that it wasn't the problem and is stumped on why there is still no heat control. The mechanic is stumped with the problem and rigged something so now the heat doesn't shut off. Does anyone know what this could be?????
#2 of 231 climate control quit working after battery replacement
Sep 06, 2007 (6:08 pm)
I have a 1998 Bonneville that the battery died in last week.
I replaced the battery as alway removing the negative cable
first then the positive. put in the new battery hooking up the
positive cable then the negative. when I started the car I noticed that the temperature that displays on the climate control screen was flashing. It flashes for about a minute then stops. The air conditioning works fine but if you turn the temperature up to 80 or 85 so it should be heating it does
switch the air from the dash opening to the floor openings but the air is cool not hot. If you turn the heat all the way up to max (90) and shut the car off and restart it then the heat will work but if you lower the temp till the air conditioning comes back on and then raise it again you get cold air again. Any Ideas ? Thanks
#3 of 231 Re: climate control quit working after battery replacement [gerry12]
Sep 06, 2007 (6:26 pm)
I've read about this before. I'm not sure if it's specific to Bonnevilles of applies to Olds and Buick as well. There's procedure for calibrating the programmer and parts associated with it.
I'm guessing... that turning the temp all the way to 90 degrees and let it sit for a minute or two and then lower the temp to 60 and let it run for a few minutes, it should get the settings for the movements on the control arms again.
I'll check my factory service manual for 98. Gimme a day. Someone else may have it quicker.
People who have had this problem said it corrected itself after a while.
Just a thought, are the terminals at the battery clean of corrosion? Is the double connection on the positive clean between the two cable ends? That causes a lot of problems.
#4 of 231 Re: climate control quit working after battery replacement [imidazol97]
Sep 08, 2007 (12:02 pm)
I will try what you said about turning it up to 90 and down
to 60 Thanks. If you could check on the procedure from your
service manual that would be great.
#5 of 231 still having problems
Sep 19, 2007 (5:28 pm)
I tried running the temp up to 90 and down to 60 and
also tried unhooking the battery cables and touching them
together for a couple minutes to drain any stored power and I
still can,t get heat. Any idea's- Thanks
#6 of 231 No heat but the air works
Sep 21, 2007 (7:34 am)
I have the same problem with my pontiac it is a 1996. I just had the air pump replaced and the controller started to blink and I have air conditioning but no heat. If you find out anything about your car please post and let me know what you did to fix the problem. Thanks Jeff C.
#7 of 231 BLOWER MOTOR PROBLEMS ON 1998 SSE
Oct 09, 2007 (5:18 am)
The fan on my 1998 SSE works when it wants to. If I leave it on it'll turn off and on as I drive. Doesn't matter what mode or if its AC/or heater. I've changed the blower motor, changed all the fuses, swapped the relay swith with a different one. Does anyone know what my problem is?
#8 of 231 Re: BLOWER MOTOR PROBLEMS ON 1998 SSE [eidersanction]
Oct 09, 2007 (5:21 am)
Most likely it's the blower motor control module. It's the equivalent of the resistors that are in manual heater control cars in the old days. It sits on top of the box near the blower motor. You have to loosen the one or two bolts holding the relay center that's above the heater box there to get it out of the way. It's held in by a couple of screws and is a circuit board. Often they fail in the on mode and the blower won't shut off. Ours failed on a 98 where it would go on and off and operate at funny speeds different than the regular 6 speeds settings that can be picked.
I was told they're available at Advance Auto as well as dealers, GMpartsdirect.com, rockauto.com. Or even as a pull from a junkyard.
You should follow the power wire from the blower motor and see it goes to the module to help find the module. You can tap the power wire and check the voltage to ground as the blower motor slows or stops and see the power dropping that's coming from the module.
#9 of 231 Re: BLOWER MOTOR PROBLEMS ON 1998 SSE [imidazol97]
Oct 27, 2007 (8:09 am)
I had the same issue with my 1998 SSEI Bonneville. I replaced the blower motor control module, which is located in the pictures as directed.
It worked out wonderfully.
I pulled the part from a junkyard, for $10.
Thanks for the advice.
Please post more if this has solved anyone else's issues.
#10 of 231 Re: BLOWER MOTOR PROBLEMS ON 1998 SSE [imidazol97]
Nov 11, 2007 (6:12 pm)
I replaced my blower motor control module. I have air conditioning or het coming out of defrost orm follr vents only. Why doesn't it come out the center vents?