will not stay running

1989 GMC S15
110,000 MILES • 4 CYL • 2WD • MANUAL
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ROB SATTERFIELD
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  • 1 POST
I have an issue with keeping fuel to the engine with this truck. It used to run fine but one day it would not stay running. After messing with it I found that it would only start once I put some fuel in the carburetor. Once going it ran fine, but I had to keep the gas peddle down a bit and the idle up. As soon as I let off the idle it would die.

I figured it was a fuel filter so I replaced it. Now it will not run at all unless I keep putting fuel into the carburetor. I put fuel in it and when started I have to keep putting small amounts in at a time to keep it running. I did this over and over and ran it for several minutes, but as soon as I stop pouring the gas in it quits. I would think the new filter is full of gas after running it so long so now I am stumped.

Any help what I should do next would be appreciated. Thank you.
Sep 23, 2016 at 7:53 PM
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HMAC300
  • ASE Certified Mechanic
  • 48,601 POSTS
  • ASE Certified Mechanic
check fuel pressure with a gauge auto parts rent it . you may need an adapter if tbi then pressure should be9-11 psi.
https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator
Sep 24, 2016 at 9:16 AM
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