1990 EFI 460 no

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Jan 1, 2021 | 11:14 AM

RnRLamf

Thread Starter

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Joined: Jan 2021

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1990 EFI 460 no

Hello

I have a 1990 f350 4x4 custom with 460efi dual tanks

Truck has always ran awesome, recent tune up etc. it’s been pretty damn cold so I added a can of red heet to each tank for good measure last fill up.

Yesterday I had a random crank no start situation like not getting fuel. If I flip the tank selector switch back and forth the engine will start, run fine with no power issues and all is well until I park it again.

I think the issue may be the fuel tank selector valve and I’m going to remove that and inspect that.

I guess it could also be a fuel pump going out but it runs just fine.

Anyway If anyone has had a similar issue and could maybe point out something I may be overlooking...just trying to not throw parts at it yet.

any help would be much appreciated

Jan 1, 2021 | 11:41 AM

rla2005

Fleet Owner

Joined: Oct 2005

Posts: 20,789

Likes: 1,753

From: Kentucky

There is no fuel selector valve on a 1990 gas engine F-series truck.

Jan 2, 2021 | 02:25 AM

OhioFordFarm

Mountain Pass

Joined: Jan 2014

Posts: 214

Likes: 37

From: Madison Ohio

I am unsure if the 90's had a selector valve or not. I know it was gone in 91. Should there not be a selector valve the check valve could be sticking on one of the tank pumps, or a pump itself is going bad. The check valve's are on the pressure side of the pump. They keep one tank from speed pumping in to the other tank.