2001 Chevrolet Blazer miss fire

Tiny
LOFTIS841
  • MEMBER
  • 2001 CHEVROLET BLAZER
  • 4.3L
  • V6
  • 4WD
  • AUTOMATIC
  • 185,523 MILES
I have a 2001 chevy 4.3 that is missfiring on the number 2 cylinder only it has new plugs an new wires a new spider injection system new camshaft senser it runs better if you take the wire off the number 2 cylinder than it dose if it is hooked up when it is hooked up it sounds like it is ether firing early or late please help
Thursday, September 3rd, 2015 AT 11:33 AM

1 Reply

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Misfires should be only left for pros anymore because needless parts get replaced. They are very hard to diagnose and you need to freeze frame a scan to find the problem. Could be any sensor on engine causing problem.
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Thursday, September 3rd, 2015 AT 12:18 PM

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