Engine

Tiny
RICK RR
  • 2000 CADILLAC SEVILLE
  • V8
  • 2WD
  • AUTOMATIC
  • 32,000 MILES

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

Do you
have the same problem?
Yes
No
Thursday, December 23rd, 2010 AT 9:26 PM

1 Reply

Tiny
MHPAUTOS
  • EXPERT
  • 30,751 POSTS

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

Mark (mhpautos)

Was this
answer
helpful?
Yes
No
Friday, January 7th, 2011 AT 11:42 PM

Please login or register to post a reply.

Other Engine Shake Questions