No spark.

Tiny
SDECKER
  • MEMBER
  • 1987 FORD F-150
  • 5.0L
  • V8
  • 4WD
  • MANUAL
  • 140,500 MILES
I diagnosed the truck with a no start problem originally with no spark. After a few test I found that the vehicle would run if I took the in-line spout connector at the distributor out.I determined the PCM to be at fault. I replaced the PCM, now the vehicle wont start and I tried the old PCM and it still won't start. I am wondering if I have a different problem or is it created by the new PCM. I hate to think that my first diagnosis wasn't correct. I don't think I was originally wrong.
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Saturday, June 4th, 2016 AT 4:25 PM

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Tiny
HMAC300
  • EXPERT
There are two different systems on this truck try this one if module is on fender and you have a pick up coil. Resistance in p/u coil shold be 400-1000 ohms if out of range replace it. Also check to see if coil gets power and works if it doesn't then it is either a wire, rotor or distributor cap.
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Sunday, June 5th, 2016 AT 8:49 AM

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