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Ask GM Tech (Cam) Your Own Question
GM Tech (Cam)
GM Tech (Cam), Pontiac Technician
Category: Pontiac
Satisfied Customers: 2373
Experience:  GM Grand Master Technician 2007. 14 years experience.
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Pontiac Bonneville SE: I have a 1999 Bonneville se that I just

Customer Question

I have a 1999 Bonneville se that I just replaced the mad sensor on and now it is stalling worse than it did before I changed it
Submitted: 1 year ago.
Category: Pontiac
Customer: replied 1 year ago.
Thats the MAF SENSOR that was replaced along with the crankshaft sensor
Expert:  FIXITMAN replied 1 year ago.
Hello, my name is Bobby. Thanks for the question. Can you tell me if the check engine light is coming on?
Customer: replied 1 year ago.
Yes and a machanic verified the code was the maf sensor
Expert:  FIXITMAN replied 1 year ago.
Thank you. If you are continuing to get a MAF sensor code then you typically either have a failing fuel system or a serious vacuum leak. It can even be a defective sensor. Most of the time if the stalling is worse after the sensor is replaced then it is defective. It may even be installed backwards. Did the mechanic replace this part? If so I would ask him to try another MAF first.