Will not start when warm up

Tiny
JIMMYREIL
  • MEMBER
  • 1984 FORD F-150
  • 5.8L
  • V8
  • 4WD
  • AUTOMATIC
  • 137,000 MILES
My truck will start right up when it is cold, but once it warms up it will crank over but not start until it is cold again.
Wednesday, October 24th, 2018 AT 2:43 AM

1 Reply

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good morning.

The first thing I would do is check for spark and fuel pressure when it will not start.

It could be a failed fuel pump, distributor module, ignition switch or ignition coil.

Lets start with finding out what is missing, spark or fuel.

Roy

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

https://www.2carpros.com/articles/how-to-test-an-ignition-system

https://www.2carpros.com/articles/car-cranks-but-wont-start
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Monday, May 31st, 2021 AT 12:48 PM

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