Truck problems

1999 GMC S15
6 CYL • 4WD • AUTOMATIC
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2004DEUCE65
  • MEMBER
  • 1 POST
I have a 1999 gmc sonoma 4.3 litre no spark while cranking the engine over
Jan 25, 2011 at 7:00 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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JDL
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 16,098 POSTS
Key on, did you check for primary voltage at the ignition coil and injectors, pink wire. If no voltage check the ecm 1 fuse-- 15 amp in underhood fuse box. The circuit goes hot when you turn on the key, you don't have to crank.
Jan 25, 2011 at 7:13 PM
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