ENGINE

2000 Cadillac Seville

Tiny

RICK RR

December, 23, 2010 AT 9:26 PM

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

FOUND 11934 RELATED QUESTIONS

1 Answer

Tiny

mhpautos

January, 7, 2011 AT 11:42 PM

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

Mark (mhpautos)

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