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1987 Ford F-150 coil

Tiny
FORDBOY88
  • MEMBER
  • 1987 FORD F-150
  • V8
  • 4WD
  • AUTOMATIC
  • 100,000 MILES
There was a what I think was a resistor in the wires running to the coil on my 1987 f-150 it has a 302 in it and it got cut off and now I have no clue how all the wires go back on the coil and every way I try the wires the truck will get hot an die, after it dies it has no spark coming from the coil but it has fire going into it. Then about 30 to 45 minutes later the truck will start and run fine but it has a miss.I had the ignition module tested and its good, ive tried 3 different coils and it done the same thing so I know its not the coil. But I cant under stand the wiring diagram in my book. Does my truck have a crank sensor? Can any one help me?
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Sunday, April 6th, 2008 AT 8:36 PM

3 Replies

Tiny
BLACKOP555
  • MECHANIC
  • 10,371 POSTS
No crank shaft sensor.

But you should check your pick up coil in the distributor, and make sure no wires are grounding out.
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Tuesday, April 8th, 2008 AT 5:29 PM
Tiny
FORDBOY88
  • MEMBER
  • 6 POSTS
How do u check the resistor with a volt meter?
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Wednesday, April 9th, 2008 AT 3:41 PM
Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
These tests are for the Dura spark ignition it has a module with two connectors a four wire and a two wire, if you have the thick film ignition that screws on the side of the distributor these are not the right tests...inform us and we will supply tests for that!


https://www.2carpros.com/forum/automotive_pictures/62217_Dura_Sparkd_1.jpg



https://www.2carpros.com/forum/automotive_pictures/62217_Dura_Sparkf_1.jpg



https://www.2carpros.com/forum/automotive_pictures/62217_1_3.jpg



https://www.2carpros.com/forum/automotive_pictures/62217_2_3.jpg



https://www.2carpros.com/forum/automotive_pictures/62217_3_4.jpg



https://www.2carpros.com/forum/automotive_pictures/62217_4_2.jpg



https://www.2carpros.com/forum/automotive_pictures/62217_5_2.jpg



https://www.2carpros.com/forum/automotive_pictures/62217_6_1.jpg



https://www.2carpros.com/forum/automotive_pictures/62217_9_1.jpg



https://www.2carpros.com/forum/automotive_pictures/62217_10_1.jpg



https://www.2carpros.com/forum/automotive_pictures/62217_11_1.jpg



https://www.2carpros.com/forum/automotive_pictures/62217_12_1.jpg



https://www.2carpros.com/forum/automotive_pictures/62217_13_1.jpg

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Wednesday, April 9th, 2008 AT 4:35 PM

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