Engine cranks but does not start

Tiny
DARCYJOHN323
  • MEMBER
  • 2008 FORD MUSTANG
  • 4.6L
  • V8
  • 2WD
  • MANUAL
  • 12,000 MILES
Crank no start, no pulse and no communication data link.
Sunday, December 13th, 2020 AT 3:18 PM

3 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,643 POSTS
It sounds like you have a bad PCM or there is no power or ground to the PCM. Lets start by checking the fuses. here is a guide to help you and the fuse location in the diagrams below. Also lets check the PCM power relay.

https://www.2carpros.com/articles/how-to-check-a-car-fuse

and

https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit

Here are the engine wiring diagrams as well so you can see how the system works. Check out the diagrams (below). Please let us know what you find. We are interested to see what it is.
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Monday, December 14th, 2020 AT 6:55 PM
Tiny
DARCYJOHN323
  • MEMBER
  • 2 POSTS
Wow. You guys are the bomb. I found broken wires on throttle sensor. Still working on it.
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Friday, December 18th, 2020 AT 9:24 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,643 POSTS
Let us know what happens and please upload pictures or videos of the problem.
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Friday, December 18th, 2020 AT 9:51 AM

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