After we replaced the fuel pump on the 99 bonneville. the car only starts when it wants to. What could be the casue of this problem.
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1999 Pontiac Bonneville Question: Feul Pump
Answer #1DaveJHM January 19, 2011, 20:54Master
Is it cranking with no start? Have you checked your base fuel pressure?
Replyheathergeoffclark, January 19, 2011, 21:31Rookie
Yes, and What is the base feul pressure and how do you check it?
ReplyDaveJHM, January 19, 2011, 22:07Master
An experienced technician with a good manual gauge will be able to check the fuel pressure. Figure low 40's in PSI.
Replyheathergeoffclark, January 20, 2011, 11:16Rookie
is there a way we can get to the fuel tank thru the trunk of the car?
ReplyDaveJHM, January 20, 2011, 21:22Master
No, unfortunately, the fuel tank must be lowered from the vehicle.
Answer #2Visitor, July 25, 2011, 14:46
the fuel pump is not sitting in the tank correctly or try changing the fuel filter under the rear driver door underneath the car near the frame