You are here:

Pontiac Repair/Pontiac Sunfire will not start

Advertisement

Expert: Todd Puccio - 6/24/2009


Question
I have a 2002 Pontiac Sunfire and it will not start up. Someone told me it might be the fuel filter because the gas wasn't getting through properly, I had that changed and it still won't start. Some one said it might have to do with the coil? Any help is greatly appreciated.

Answer
Hi Lisa:

well in order for an engine to run it needs 3 things spark,fuel and compression. It needs over 40 PSI of fuel pressure which has to be checked with a pressure gauge. It needs spark on all 4 cylinders which can be checked with a spark checker. and the engine needs good compression on all for cylinders wich is checked with a compression tester. Let me ask you this when it will not start does it have a security lamp comming on the dash and is it flshing? If so the issue is withe the factory security system and it is not allowing the enine to start. If so you may have an issue with a bad sensor in the ingnition lock housing and that is wht this car wil not start and run.

Pontiac Repair

All Answers

Answers by Expert:

Ask Experts

Volunteer

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 employed by the same Gm dealer for 18 years and and a ASE master technician. I work at a Pontiac and GMC truck store. 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
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

©2012 About.com, a part of The New York Times Company. All rights reserved.