2001 Chevrolet Blazer miss fire

2001 CHEVROLET BLAZER
185,523 MILES • 4.3L • V6 • 4WD • AUTOMATIC
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LOFTIS841
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  • 3 POSTS
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
Sep 3, 2015 at 4:33 AM
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HMAC300
  • ✓ASE Certified Mechanic
  • 48,601 POSTS
  • ASE Certified Mechanic
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.
Sep 3, 2015 at 5:18 AM
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