Engine shut off coming down road

160,250 MILES • 5.7L • V8 • 4WD • AUTOMATIC
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BUSTER1
  • MEMBER
  • 1 POST
It will start only by holding down on throttle, but will shut off if you take foot off.
May 31, 2019 at 8:57 PM
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ASEMASTER6371
  • ✓Experienced Mechanic
  • 52,796 POSTS
Good morning,

Is the check engine light on? If it is, do you know the code?

Some possibilities:

1. Fuel pressure.

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

2. Clogged catalytic converter.

https://www.2carpros.com/articles/how-to-test-a-catalytic-converter

3. Low engine compression.

https://www.2carpros.com/articles/how-to-test-engine-compression

4. Engine timing.

All these need to be checked to determine the failure.
May 31, 2019 at 10:48 PM
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