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Pontiac Repair/a/c and noise


Hello, I have a 2001 Pontiac Bonneville SLE and about a month ago the heater/air conditioner stopped blowing out of the floor and dash vents. It still blows hot/cold air very well, but only from the defrost. And secondly there is a whinny noise coming from the front passenger tire (I suspect it is the tire). The sound gets louder as I accelerate, quieter as I slow down, and it completely stops if the car is not moving OR if I am making a right turn. Help please

Hi Luara:

Ok for the HVAC there are eletric motors that run the doors for the air flow. the mode door motor is more then likley bad. as for the noise you hearing driving. if it's a squeek it could be thye brake wear indicator if it a growl/whine it more then likley needs a wheel bearing also known as a (Hub) good luck :-)

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Todd Puccio


General auto repair,electrical issues,driveability issues,anti-lock brakes,SIR systems,HVAC,engine performance,Gm specific. I have worked at my current dealership since the 1990 model year anything much older than that I have limited exposure to. I do not have very much transmission experience so those question you may want to ask of another expert. When you send me a question let me know the exact make/model/engine and year for the car or suv you have it makes it easier to answer the questions that way. If your happy with the answer I gave you please feel free to Donate. This is a free service to you and I am not compensated at all by this web site. I have 22 years of experience to share with you and my knowledge wasn't free to me. I had to pay for my education.


Experience in the area: I have been a technician in GM dealerships for over 22 years and I am a ASE master technician. I work at a Buick and GMC truck store Previously I worked at a Pontiac GMC store for 18 years. I Served a a lead technician when dealership was on a team system. I just recently moved to a Buick,Hummer,Saab Store when my franchise was purchased by this dealership. Organizations: ASE master technician


Education/Credentials:High school diploma,2 year vocational school degree 2 year college degree. Associates degree in applied sciences (auto technology)Awards and Honors: GMC master technician

Awards and Honors
Master GMC truck technician Master ASE technician in 9 categories

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