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Idles fine, but when I give it gas the engine shuts off

Tiny
JONBABB
  • MEMBER
  • 1990 FORD F-150
  • 5.0L
  • V8
  • 100,050 MILES
My truck will set and idle just fine doesn't make any noises at all but when you give it fuel it shuts off. What can cause this? It has a new throttle body and new fuel pumps.
Thursday, September 5th, 2019 AT 12:21 PM

1 Reply

Tiny
DANNY L
  • MECHANIC
  • 5,648 POSTS
Hello, I'm Danny.

You say you've replaced the fuel pumps but have you tested the pressure recently? I you don't have access to a fuel pressure tester your local auto parts stores have a tool loaner program and can loan you one.Here is a tutorial showing what is involved:

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

Sounds like you might have low fuel pressure. I've attached your trucks fuel pressure specifications below. Hope this helps and thanks for using 2CarPros.

Danny-
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Monday, April 26th, 2021 AT 5:57 PM

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