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Pontiac Repair/2002 Pontiac Grand Am GT

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Question
For the last month, my car has been having problems starting.  It will crank, but it won't pop off (turn over).  At first, we thought it was the fuel pump, but every time I had it towed to the repair shop (3 times) it would start for the mechanic.  He ran the diagnostics on it and the only error that appeared was that stupid Security issue.  We decided to take that out and it has worked fine for the last week and a half.  I took it to work today, and 10 hours later when I wanted to leave, the car would not start.  I let it sit for a couple of hours and went back to try and start it, but no deal.  Any ideas on what could be the problem?  Has anyone else ever asked about this problem?  Any advice would be greatly appreciated.  You have helped me more than once with this vehicle, and you have always been spot on.  Thank you.

Answer
Hi Jeanne:
does this have a V6 engine in this car? 2 things to look at. if it's a V6 make sure the bcm/ac fuse in the under hood fuse box is not blown.  not sure exactly how it's labeled from year to year it's different but for sure it's in the under hood box.

If this has a security issue (light on and or flashing) then try this turn off all the accy's in the cra radio HVAC etc. try to start the car crank it and let the key go back to the "Run" position. let the car sit for 10 minutes the security light will stay on stead and or will flash for 10 minutes after 10 minutes it should turn off or stop flashing. turn the car off let it sit for 1 minute and then try to start the car again. if the issue is a security problem the body control module "should" learn the ignition lock cylinder code and it should run. if it starts and runs you need a new ignition lock housing assembly it's the case that the lock cylinder goes into NOT the electrical ignition switch.

back to the first thing if the a/c BCM fuse is blown replace it and then pull out the relay in the fuse box marked compressor. when you turn the cover over for the fuse box there a a road map for what the fuses are labeled and where they go.
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

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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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