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Cranks but will not start?

Tiny
JAMESJMH
  • MEMBER
  • 1993 FORD F-150
  • 5.8L
  • V8
  • 4WD
  • AUTOMATIC
  • 160,000 MILES
Cranks but no start. I have replaced coil n worked for 2days. I have power at coil, flash when cranked test light, power at control mod to pip. Spark out of coil to cap. 40* pressure at fuel rail. Won't start with starting fluid either. Any suggestions?
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Friday, August 11th, 2023 AT 11:49 AM

5 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,973 POSTS
If it won't start with starting fluid and the engine sounds normal when you are cranking it over, you have lost spark. I have seen the ignition module go out on these trucks causing the problem you have described.

Please go over this guide as well:

https://www.2carpros.com/articles/car-not-running-advanced

Also have you run the codes?

https://www.2carpros.com/articles/ford-lincoln-mercury-obd1-1995-and-earlier-diagnostic-trouble-code-definition-and-retrieval

Check out the images (below). Please let us know what happens.

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Saturday, August 12th, 2023 AT 10:31 AM
Tiny
JAMESJMH
  • MEMBER
  • 4 POSTS
Iv actually already did test light testing at control mode and checked fuses. I replaced the pip today and putting a control mod in later this evening. Which only leaves the condenser. Only other I can think of is if plugs fouled out after coil was put in and ran for 2 days.
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Saturday, August 12th, 2023 AT 4:43 PM
Tiny
JAMESJMH
  • MEMBER
  • 4 POSTS
Distributor and rotor are new, also cap replaced last month.
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Saturday, August 12th, 2023 AT 4:45 PM
Tiny
JAMESJMH
  • MEMBER
  • 4 POSTS
No codes on koer slow or fast or in code library.
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Saturday, August 12th, 2023 AT 6:57 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,973 POSTS
Do you have spark when the engine will not run?

This video can help:

https://youtu.be/baq_aEWNQ0Y

If you have spark will it run on starting fluid?
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Monday, August 14th, 2023 AT 11:24 AM

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