Hesitation when attempting to accelerate

Tiny
MSNETTE03
  • MEMBER
  • 2001 CHEVROLET SUBURBAN
  • 5.3L
  • V8
  • 4WD
  • AUTOMATIC
  • 321,000 MILES
When I start to drive and it's time to pick up speed, It starts to hesitate when I try to force it. It will not go pass 30 mph. It's scary at times.
Sunday, June 28th, 2020 AT 1:45 AM

1 Reply

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

It sounds like you might have a weak or failing fuel pump and is not providing adequate pressure.First thing I suggest you do is test the fuel pressure.If you don't have access to a fuel pressure tester most auto parts stores have a tool loaner program and can rent you one.Here is a tutorial showing what is involved:

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

After performing this test get back to us with the results. I've attached a picture below of the fuel pressure specifications for your vehicle.Hope this helps and thanks for using 2CarPros.

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Sunday, June 28th, 2020 AT 3:29 AM

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