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2000 Chevy Blazer cylinder 4 misfire

Tiny
SWEETNEKA
  • MEMBER
  • 2000 CHEVROLET BLAZER
Computer problem
2000 Chevy Blazer

i did a computer dignostic test on my blazer and it read "cylinder 4 misfire" what I this ad can I fix it myself.
Thursday, December 11th, 2008 AT 12:37 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
1st thing you should do is check the sparkplug, compression and injector for that cylinder.

Misfires can be caused by worn or fouled spark plugs, a weak spark (weak coil, bad spark plug wire), loss of compression, vacuum leaks, anything that causes an unusually lean fuel mixture (lean misfire), an EGR valve that is stuck open, dirty fuel injectors, low fuel pressure, or even bad fuel.
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Thursday, December 11th, 2008 AT 1:53 PM

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