how do i know when fuel pressure regulator needs replaced

Asked by kassiass Nov 20, 2013 at 04:12 PM about the 1991 Pontiac Grand Prix 4 Dr SE Sedan

Question type: Maintenance & Repair

how do I know about when the fuel pressure regulator needs to be replaced?are there warning signs or just something to look for?

1 Answer
30

flej22 answered 10 years ago

when mine went out the car wouldn't idle and fuel was coming through the vacuum line going to the back of the throttle body, it would run off idle but wouldn't idle.

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