Mechanics

PONTIAC FIREBIRD ENGINE PROBLEM

1993 Pontiac Firebird • 172,000 miles

It stumbles on hard acceralitons I checked the pressre with the key on it is 10 lbs the book said it should be 41 to 47 lbs with the engine runnig it should drop 3 to 10 lbs it has 34 lbs when engine running I did change the fuel filter thanks
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Camaro1981
February 10, 2013.



Too low. You need to replace the pump.

Roy

ASEMaster6371
Feb 10, 2013.
I drove the car with fuel pressure reg no vaccum goin to it the fuel pressure was higher but it still stumbles I just want to figure out what for sure is wrong with so I can get it fixed

Tiny
Camaro1981
Feb 10, 2013.