Last post on Feb 13, 2013 at 7:44 PM
You are in the Pontiac Bonneville
What is this discussion about?
Pontiac Bonneville, Heating / Cooling, Sedan
#229 of 231 Re: 98 Bonneville SSE [imidazol97]
Dec 14, 2012 (6:11 am)
I have the auto digital as pictured in Post #221. So, if the motor doesn't work with the test lead, I'm looking at replacing the blower speed control module? Are these parts available at most auto supply stores?
Thank you very much for your help. I'm going to get on this this afternoon.
#230 of 231 Re: 98 Bonneville SSE [stew20]
Dec 14, 2012 (8:22 am)
> the motor doesn't work with the test lead
No. If the test of the motor using a fused power wire from the positive battery terminal to the purple wire and a ground to the black wire makes the motor run just fine--at full speed--, then you _probably_ have a blower control module problem.
They are available from rockauto.com, and various box stores, along with the recycling yards. Depends on how much you're willing to fuss over it from recycling, such as the pick-and-pull yards.
#231 of 231 95 Bonneville, SSEI
Feb 13, 2013 (7:44 pm)
I am amazed how long this thread has been going. This has to be a design weakness in the Pontiac. I had the same problem but it could go either way, hot in the summer, cold in the winter. I didn't want to work on the problem by having the dealer throw my money at it. The fix I show has been in place for at least four years (just checked, can't believe it was May 2005) and almost always works. I concentrated on the nylon pivot for the control arm and use that to move it back and forth from hot to cold. When it is working changing the temp from hot to cold you can see the arm moving if the glove box door is open.
I upgraded the arm to metal from wood several years ago. There are times it jams to the right (cold) and I don't want to force it. Usually turning the climate control off completely will allow me to move the arm. Fortunately the car is narrow enough to reach the arm while driving w/o dropping my cell phone, spilling my coffee or losing my donut.
Here are some pictures and description that may help you understand what I did, but not necessarily motivate you to do it.