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1993 GMC Sonoma it is missing

Tiny
LITTLE WHILE
  • MEMBER
  • 1993 GMC SONOMA
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 160,000 MILES
I have checked pluges and replaced also distributor and roter button but once it warms up going down the road it starts to cut out 15 to 20 miles
Friday, March 6th, 2009 AT 10:26 PM

2 Replies

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, March 6th, 2009 AT 10:28 PM
Tiny
LITTLE WHILE
  • MEMBER
  • 2 POSTS
Where is it at on the motor
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Friday, March 6th, 2009 AT 11:10 PM

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