Truck problems

Tiny
2004DEUCE65
  • MEMBER
  • 1999 GMC S15
  • 6 CYL
  • 4WD
  • AUTOMATIC
I have a 1999 gmc sonoma 4.3 litre no spark while cranking the engine over
Tuesday, January 25th, 2011 AT 7:00 PM

1 Reply

Tiny
JDL
  • MECHANIC
  • 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.
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Tuesday, January 25th, 2011 AT 7:13 PM

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