Spark

Tiny
CBARNETT
  • MEMBER
  • 1997 CHEVROLET SUBURBAN
  • V8
  • 4WD
  • AUTOMATIC
  • 160,000 MILES
I have a 1997 Suburban which I am not getting spark to the coil. I have replaced the coil but still nothing. Any ideas?
Thursday, January 13th, 2011 AT 3:40 PM

1 Reply

Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
Do you have primary voltage to the coil, key on, pink wire? Is it hot/voltage? Any applicable trouble codes? Some possibilities, coil driver module-- faulty wiring circuit, somewhere, Maybe the computer doesn't see a rpm signal? If that is the case, no injector pulse either. You can use a noid lite to check for injector pulse, engine cranking.
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Thursday, January 13th, 2011 AT 5:25 PM

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