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2000 Cadillac Seville Repair Question


Topics covered: Compression, Cylinder misfire, Fuel filter.
Mileage: 32,000 miles.

Asked on December 23, 2010

Engine

Enter your question...2000 4.6 northstar eng idles reoght with code p0303 #3 cylinder misfire--new plugs,new#3 injector, and new fuel filter?????????????still shakes
Avatar Asked by RICK RR

Answer

Replied on January 7, 2011

Check compression, check for vacuum leak around this cylinder, check that the injector is getting a firing pulse, start here.

mark (mhpautos)

Tiny Answered by mhpautos (expert)
26,913 answers provided