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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
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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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