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Will not start without giving gas

Tiny
123456$$$
  • MEMBER
  • 1988 CHEVROLET BLAZER
  • 5.7L
  • V8
  • 4WD
  • AUTOMATIC
  • 186,000 MILES
Truck won't start or idle without first giving it gas, 350 TBI, just started this problem recently, once the truck is running there are no problems. I used to be able to reach into the window and turn the key and it would fire. Now I have to play with the gas pedal so it will idle. Opinions on the problem?
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Sunday, January 6th, 2019 AT 7:51 AM

1 Reply

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

It's possible your two fuel injectors may be clogged or you might also have low fuel pressure.I would suggest first checking your fuel pressure.If you don't have access to a pressure tester your local 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

The specification for your truck is 10-13 P.S.I. Hope this helps and thanks for using 2CarPros.
Danny-
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Sunday, January 6th, 2019 AT 7:35 PM

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