Chevy Truck not running

Tiny
MRC1759
  • MEMBER
  • 1990 CHEVROLET SILVERADO
  • V8
  • 4WD
  • AUTOMATIC
  • 120,000 MILES
I have a 1990 chevy 1/2 ton pickup, I have replaced the pickup coil, control module, coil, and ecm. It will start cold, run about a minute, shuts off, and then no spark for an hour? I am baffled
Friday, December 24th, 2010 AT 8:26 PM

1 Reply

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
See if your pink wire on teh coil is getting power. If it isn't then trace it back to the igninition switch. Also when you replaced the ecm unit in the distributor you shold have put dielectric compundonit onthe bottom of it. Otherwise it's probably a wiring problem that has to be physically looked at.
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Thursday, September 3rd, 2020 AT 9:53 AM

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