I have a 2003 pontiac aztek it will crank but wont start. Fuel pump engaged when key is turned on. Not sure what to check next?

Asked by Oct 30, 2014 at 12:56 PM about the 2003 Pontiac Aztek AWD

Question type: Maintenance & Repair

3 Answers

385

I would check the fuel pressure next to make sure it is within specs. Fuel pressure key on engine of should be between 52 and 59 psi. Also, remove the spark plugs and make sure they have fire while someone cranks the engine. Is the check engine light on? If it is, pull the codes and let us know what they are.

Pulled the spark plug and it did have spark. No the check engine light is not on. How and where do I check fuel preasure

385

There is a small schraeder valve located on the fuel rail. A fuel psi gauge is needed to screw onto it. Since you have no spark i would go through the fuses and make sure a fuse, especially any fuse that say ecm, isn't blown.

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