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Only starts if I prime it

Tiny
CHARLES KERR2
  • MEMBER
  • 1997 CHEVROLET S-10
  • 4.3L
  • V6
  • 2WD
  • AUTOMATIC
  • 111,111 MILES
Was running on propane I removed the propane and now it starts and runs fine as long as you prime it. If you turn it off and let it sit it will not start and run without priming it with fuel.
Thursday, April 4th, 2019 AT 10:53 AM

1 Reply

Tiny
SEVAG P
  • MECHANIC
  • 405 POSTS
Hello thanks for using 2CarPros.

There are many things that can cause this problem one of them it might be coolant temperature sensor sending wrong information to engine control unit, during engine start injectors must spray more fuel for cold start.

As a first step check engine fault codes.

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Run our engine does not start guide:

https://www.2carpros.com/articles/car-cranks-but-wont-start

Check the table fig 1 and 2, for trouble shooting specific to your vehicle.
Let us know what happens with you.
Thank you.
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Thursday, April 4th, 2019 AT 11:16 AM

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