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1995 GMC Jimmy

Tiny
CHEESBURGER122
  • MEMBER
  • 1995 GMC JIMMY
Engine Mechanical problem
1995 GMC Jimmy 6 cyl Four Wheel Drive Automatic

hello I have a 1995 gmc jimmy that has a misfire problem I have changed the cap bug timing chain spark plugs, wires but have had no luck
Friday, May 22nd, 2009 AT 10:07 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Engine misfiring 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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Friday, May 22nd, 2009 AT 10:15 PM

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