Rick Taylor

Hello- I have a 1979 Chevy G10 with a rebuilt 1994 350 engine. It runs for 5 minutes then the fuel pressure drops to zero and it quits. I have tried running it with the gas cap off thinking it was a venting issue but no luck. Any ideas? Thanks Rick

dberladyn

fuel pump?
dirty fuel filter?
pinched fuel line?

carburetor issues?

Rick Taylor

I read on another forum that the fuel filter can fill up with crud from the gas tank, have to replace my tank maybe?

Irish_alley

does it start right back up or does it have to sit for some time?
you said a 94 but did you keep the tbi or put a carb on it?

Rick Taylor

I have a carb on it and a fuel pressure regulator running at 5.5 lbs of pressure. The pressure drops to zero as it starts to die. I have to wait about 15 minutes before it will start again. Also seems to quit mostly when going uphill.

StanVan

Electric or mechanical fuel pump? If the pressure is dropping, it seems to me to be a fuel delivery issue.

Rick Taylor

Electrical. I can't imagine it would run for a while than stop, but maybe?

StanVan

It could if it's going bad.

Rick Taylor

Any idea as to what I'm looking at here? Did not have this on my old engine. Thanks.

Irish_alley

thats a fuel pump filter and pump