No spark

1991 CHEVROLET TRUCK
240,000 MILES • 5.0L • V8 • RWD • MANUAL
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JOHN JOEL
  • MEMBER
  • 1 POST
Engine start but no sparks. I check the coil but no sparks. The coil has four terminal post on it. Two pink and two white. The pink wires has twelve volt on them. But the two white have nothing.
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Aug 26, 2017 at 7:52 PM
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STRAILER
  • ✓Experienced Mechanic
  • 55,647 POSTS
It sounds like the ignition module has gone out but to be sure here is a wiring diagram and a guide so you can check for power, if power is there I would replace the module.

https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester

Diagram below

Let me know what happens.

Cheers, Ken
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Aug 30, 2017 at 2:01 AM
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