throttle body

1999 CHEVROLET BLAZER
150,000 MILES • 2.2L • V6 • 4WD • AUTOMATIC
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TERRY KAHN
  • MEMBER
  • 1 POST
At times it seams to starve of fuel , let up on gas and it will even up. but it runs smooth.
Jun 10, 2017 at 9:57 AM
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CJ MEDEVAC
  • CAR REPAIR CONTRIBUTOR
  • 11,004 POSTS
Check engine light on?

Last time it had a fuel filter?

The Medic
Jun 10, 2017 at 11:01 AM
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STEVE W.
  • CAR REPAIR CONTRIBUTOR
  • 15,157 POSTS
First thing would be to check the fuel pressure, low pressure due to a failing pump or clogged filter can cause this. You can "borrow" the tools to test the pressure at many auto parts stores. You should have between 60-65 psi.
Jun 10, 2017 at 11:03 AM
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HARRY P
  • CAR REPAIR CONTRIBUTOR
  • 2,292 POSTS
I am with Steve, check the fuel pressure. Having had two Blazers with the same fuel pump as yours, I have replaced both of them. And they went bad right at the 150,000 mile mark. Also, they are a known common problem with S-Series trucks (Blazers, Jimmys, S-10s, etc).
Jun 10, 2017 at 2:47 PM
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RENEE L
  • CAR REPAIR CONTRIBUTOR
  • 1,260 POSTS
Hi TERRY KAHN,

If you are interested in checking your vehicle's fuel pressure yourself here is a helpful link to an article from this site with step by step instructions and pictures explaining the process of checking the fuel-system-pressure-and-regulator.

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

If you need further assistance please come back to the site we are here to help.

Thank you for visiting 2CarPros.com.

Kindest regards,

Renee
Admin
Jun 10, 2017 at 2:56 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.