Question about 1999 Buick Century
It starts the engine revs up a bit by itself then dies. If I stay on the accelerator while in park it will sputter a bit then stay started... most of the time. After doing this it sometimes dies when I put it in gear. Once it runs a few miles it's fine until the next fill up.
Sounds like a fuel pressure issue. When you release the pressure in the fuel tank, the pump may have difficulty re-pressurising the system. Another possibility is the the one-way check valve in the fuel pump is faulty, and fuel drains back to the tank while you are fueling. There also exists the possibility that the tank is being overfilled, and the fuel return line is being blocked, causing an OVERpressure situation in your fuel rail, which might explain why the engine runs when you hold the accelerator pedal down. How about your fuel filter; when was it last replaced? Is the check engine light on? Take it into a qualified garage and have the codes read. Maybe the mechanic will be able to point you in the right direction.
Hope this helps!
Posted on Jul 25, 2009
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Posted on Jan 02, 2017
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