2003 GMC Safari no fire to the coil

Tiny
GARY RHOADES
  • MEMBER
  • 2003 GMC SAFARI
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 25,000 MILES
We lost fire to the coil, need to find areas to check.
Sunday, February 14th, 2010 AT 11:15 AM

1 Reply

Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
Hi, have you lost anything besides spark? Fuel pressure is good and you have injector pulse?

Do you have primary voltage at the coil? Pink wire, goes hot with key on. The white wire is ground/coil driver. That wire has a pulse, engine cranking. Can you check for any possible trouble codes? At the least, you need an obd11 code reader.
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Sunday, February 14th, 2010 AT 11:42 AM

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