Shuts off when accelerating

Tiny
KRISTINE CRAIG
  • MEMBER
  • 1994 CHEVROLET S-10
  • 4.3L
  • V6
  • 4WD
  • AUTOMATIC
  • 15,000 MILES
Idles and starts good but when you accelerate it starts missing and sputtering and shuts off.
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Sunday, January 2nd, 2022 AT 2:42 PM

1 Reply

Tiny
SEAN M
  • EXPERT
Hello,

There could be a number of reasons for this issue.
It could be due to a dirty fuel filter that does not allow sufficient fuel to the engine, or a faulty fuel pressure regulator. A dirty throttle body or a mass air flow sensor can also create difficulties while accelerating.

Take a look at this guide:

https://www.2carpros.com/articles/engine-hesitates

The best course of action would be to take a look at each individual item and take necessary action.
Like cleaning out the throttle body and the mass air flow sensor.
Checking the fuel pressure. This vehicle should have 9-13 PSI of fuel pressure with the key on and engine off.

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

Also checking the spark plugs for wear and gap is a good idea.

Please let me know what you find or if you have any questions.
Thank you.
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Sunday, January 2nd, 2022 AT 6:55 PM

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