2002 Pontiac Grand Prix Repair Question
Topics covered: Engine, Random misfire, Vacuum leak.
Mileage: 120,000 miles.
Mileage: 120,000 miles.
Asked on February 14, 2013
Pontiac Grand Prix Engine Problem
Sluggage, engine lite came on had code of p0300, seems to shift but and runs ok after getting to speed, friend though maybe vaccuum, seems to b between 2nd and 3rd.
Asked by (pending member)Answer
Replied on February 14, 2013
P0300 Random Misfire are normally caused by vacuum leak and contaminated fuel-Could also be other things: Go to this walk thru link: http://www.2carpros.com/articles/engine-misfires-or-runs-rough
