Question about 2004 Pontiac Grand Prix
I have replaced the fuel filter and pump, ran codes on the car many times, yet still when you start the car you have to give it alittle gas to get the car to start.
Check the throttle position sensor adjustment .Check for correct idle speed sensor. Check MAF sensor. If you have replaced any item with non genuine item it is possible that the cpu is having trouble reading the settings as they are different to genuine settings. While there are no fault codes showing the settings may be at max or min and the codes will not show up.
Posted on Apr 21, 2013
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Posted on Jan 02, 2017
you got drop the gas tank remove retainer ring on the top of the tank n pull the pump out i hate doing this kind of job good luck
Posted on Jun 16, 2008
There are a few other things taht could be causing fuel starvation. First of all, did you pull the injectors and clean out the individual filters? There are small, conical screens inside the top of each injector, and they could be clogged. Second, There could be some carbon build-up on the intake valves, which would act like a sponge for the fuel after initial start-up. A can of BG44K fuel system cleaner from NAPA will get rid of that. If it is neither of these, the fuel pressure regulator could be leaking. Other than this, the car would need to be diagnosed by a shop before action is taken. I hope this helps you!
Posted on Dec 04, 2009
Testimonial: "I ended up taking the car to a local shop for diagnosis. It turns out that the fuel pump is week and not supplying enough pressure to the motor. "
Take your car to a dealer and tell them to "clean the throttle body" Known problem for this year. It will solve your issue.
Posted on Dec 30, 2009
could be your anti theft system needs to be reset. turn your key to the on position for ten min, turn it off and then back to the on position for ten more min it should reset your key. anti theft cuts off your fuel supply so it can't be stolen
Posted on Mar 20, 2010
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