Fuel flow issue
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Freshman User
Joined: Sep 2010
Posts: 30
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From: Eagle River, AK
Fuel flow issue
1976 f-100 390
I’m having a fuel flow issue. I changed the fuel pump and filter.
If I let the truck sit for a few days, I cannot get the fuel to the carb without force feeding it through the lines with my shop vac.
It’ll then idle and drive fine until I put my foot to the floor and it will choke out so I always have to gradually speed up.
What are the solutions that may correct the fuel flow or would it perhaps be a separate issue I am missing?
Thank you
I’m having a fuel flow issue. I changed the fuel pump and filter.
If I let the truck sit for a few days, I cannot get the fuel to the carb without force feeding it through the lines with my shop vac.
It’ll then idle and drive fine until I put my foot to the floor and it will choke out so I always have to gradually speed up.
What are the solutions that may correct the fuel flow or would it perhaps be a separate issue I am missing?
Thank you
Post Fiend
Joined: Feb 2008
Posts: 5,831
Likes: 121
From: St Albert, Alberta
1976 f-100 390
I’m having a fuel flow issue. I changed the fuel pump and filter.
If I let the truck sit for a few days, I cannot get the fuel to the carb without force feeding it through the lines with my shop vac.
It’ll then idle and drive fine until I put my foot to the floor and it will choke out so I always have to gradually speed up.
What are the solutions that may correct the fuel flow or would it perhaps be a separate issue I am missing?
Thank you
I’m having a fuel flow issue. I changed the fuel pump and filter.
If I let the truck sit for a few days, I cannot get the fuel to the carb without force feeding it through the lines with my shop vac.
It’ll then idle and drive fine until I put my foot to the floor and it will choke out so I always have to gradually speed up.
What are the solutions that may correct the fuel flow or would it perhaps be a separate issue I am missing?
Thank you
Sounds like some debris is plugging up the inlet to the needle and seat in the carb.
Cargo Master
Joined: Jul 2005
Posts: 2,313
Likes: 367
From: Kansas
in addition to the above advice, you might have some dry-rotted rubber lines between the tank and the fuel pump inlet. One quick way to test is to put a rubber line from the fuel pump inlet into a gas can...if the issue persists, then the problem is between the fuel pump and carb...if it goes away the problem is from the fuel pump back to the tank.
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