2004 Pontiac Bonneville Q&A
2004 Pontiac Bonneville Question: Car will not stay running
First thing I'd check is the fuel pressure with a test gauge. I think the fuel pump could be failing or the filter could be plugged. If there's any doubt about the fuel pressure and you haven't replaced the fuel filter in recent memory, now's the time for a new filter. Next possibility is ignition failure, but that should cause the check engine light to illuminate, and you didn't mention that. If you want to find a specialist, here's a directory link for you: https://repairpal.com/directory?address=48430&car_brand_names=Pontiac - Superbob
1990 bonneville will start but wont stay running... what could this be.?
The fuel pump can fail causing the engine to stall and not restart. Our technicians highly recommend to replace your fuel filter every 30,000 miles to help prevent undue strain on the fuel pump.
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