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Vehicle cutting out

Tiny
MRBUSH64
  • MEMBER
  • 2001 CHEVROLET SILVERADO
  • V8
  • 2WD
  • AUTOMATIC
  • 124,000 MILES
Engine 4.8
For about 6 months now my chevy has been acting up. It will just cut off while driving, still have all electrical. Happens mostly when the weather is warm. After it cuts off, I can let it set for 15 minutes then it will restart. I have replaced the crank sensor, Throttle position sensor and still nothing. I also put a new fuel pump on 7 months ago
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Thursday, June 25th, 2009 AT 8:27 AM

1 Reply

Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
This sounds like a failing fuel pump. So, we are going to have to check the fuel pressure when this stalls.

Here are a couple guides that will help with this issue:

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

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

If you do not check the pressure when this is acting up, then the pressure will be fine. So basically, we should hook up the gauge and then tape it to the windshield and then drive it until it acts up again. Then we can see if the pressure is dropping when it stalls.

If so, then we need to replace the pump.

I am attaching the process below on how to do this. Please let us know what questions you have.

Thanks
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Sunday, March 13th, 2022 AT 10:53 AM

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