1990 GMC C2500

214,000 MILES • 6 CYL • 4WD • MANUAL
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HALLOITSBRANDON
  • MEMBER
  • 1 POST
Only 4 cylinders run out of the 6. What could be wrong with it?
Apr 12, 2010 at 12:19 PM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
Inspect the distributor cap and rotor also test the distributor pick-up coil and the injectors on those cylinders
Apr 12, 2010 at 12:32 PM
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