It has no spark at all?

Tiny
LESLIEBARNES
  • MEMBER
  • 1994 CHEVROLET CHEYENNE
  • 4.3L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 250,000 MILES
I have the truck listed above c1500 4.3 v6. I was driving it and it backfired the stalled and wouldn't crank again. It has no spark at all. I've changed the spark plugs, Distributer cap, wires, rotor, ignition coil, and ignition control module. It still won't crank and I'm still not getting and spark. I've tried to locate the crankshaft position sensor but can't locate it. Help.
Friday, January 31st, 2025 AT 4:10 PM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 50,859 POSTS
I would remove the distributor cap and have a helper crank the engine over the make sure the rotor is turning. Next use a test light to see if there is power at the coil with the key on. (pink wire). Here is a guide to help you:

https://www.2carpros.com/articles/no-ignition-spark

Please go over this guide and get back to us.
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Sunday, February 2nd, 2025 AT 9:03 AM

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