1992 Pontiac Bonneville

1992 PONTIAC BONNEVILLE
182,300 MILES • 6 CYL • FWD • AUTOMATIC
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DEKALBM
  • MEMBER
  • 1 POST
My car has recently had issues with stalling. This is an intermittent but persistant issue when it happens. There was a prior incident of the same type approx. 6 months ago, which ceased after running "seafoam" through the crank case and gasoline tank. This led me to believe it was a fuel injector issue.

Recently my car has stalled 3 times in a week. Twice I was able to restart the car immediately, the third time it took approx. 25 seconds of cranking. Currently halfway through a tank of gas w/ "seafoam" additive.

Plugs are clean, wires are intact and my mech claimed the engine wasn't in need of a tune up.
Have noticed that oil pressure (once the car is hot) will run slightly below 40psi at idle.

It has also began to "buck" after a stall and restart (usually one time, sounds like the transmission slamming from 1st to 2nd gear). Recently had a trans leak from rotted hoses, they were replaced quickly.

So fellows, what is ailing my near ancient PB?
Many thanks for any info.
Sep 23, 2008 at 9:26 PM
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2CARPRO JACK
  • CAR REPAIR CONTRIBUTOR
  • 11,533 POSTS
Sounds like you may have a fuel pump going out. When it stalls, ned to see if it has any fuel pressure in the fuel rail.There is a schrader valve on the fuel rail to do this. At that mileage if it is the original pump, you may have set a record for GM fuel pumps
Sep 24, 2008 at 7:49 AM
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