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Pontiac Repair/2000 Pontiac Bonneville havc prob. has duel air cont.

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Question
i have a 2000 Pontiac Bonneville and when i run my ac it blows cold on drivers side and hot on passengers side and in back even when the system is shut off heat still comes out passenger side and back it has dual control system

Answer
Hi Steve.

if you turn the a/c off and change the temps from hot to cold or cold to hot the passenger side is always warm/hot? if so I would suspect that the temp door actuator is bad. it's a bidirectional motor on the side of the HVAC case that runs the door position pretty common issue with that vintage. good luck :-)

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Todd Puccio

Expertise

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

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

Organizations
ASE

Education/Credentials
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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