95 Ford

[montesa]

https://www.ford-trucks.com/forums/955211-1996-f150-front-tank-overflow.html

 

[dlbleak]

https://www.ford-trucks.com/forums/955211-1996-f150-front-tank-overflow.html

Thanks for the link, Jason. It sucks I might have to replace that brand new pump.

 

[montesa]

Thanks for the link, Jason. It sucks I might have to replace that brand new pump.

Have you tried running it on the front tank for a good while? Maybe that shuttle valve will free up or something.

 

[dlbleak]

@montesa, no but that is a possibility. I may lower the bed back down and just put a couple bolts in it and try that.

 

[Okie4570]

So does yours have a separate selector valve? I read after 90 that is handled with just the two fuel pumps and their inner workings. I don't think my 90 has a selector valve. But I don't know for sure

My 90' just had the tank switch on the dash, pump in each tank.

 

[montesa]

My 90' just had the tank switch on the dash, pump in each tank.

Yes, that's what I've read everywhere. 88 or 89 was the last year of the selector valve. All other problems are either dash switch, wiring or the module itself. I looked all over mine. No valve.

 

[MP43]

Ford made in-line check valves for a while that could be installed when the in-pump valves went bad. I don't know if they're still available from Ford, but I've pulled several from salvage yard trucks, and they've always worked fine. Unlike the in-tank valves, the add-on ones rarely seem to go bad.

 

[CHenry]

Here we go again. I pulled the bed to investigate what I thought was a leak on the front tank. Turns out it wasn’t leaking, it was over flowing. It has a bad mixing/selector valve and basically empties the rear tank into the front tank. There’s more to it than that but that’s the end result. Now I realize I didn’t need to pull the bed but it helped me figure out the issue.
In the end, this may have been the reason the truck was parked in the first place.
View attachment 489713

Those wooden blocks look very unstable

 

[dlbleak]

Those wooden blocks look very unstable

Just the one. I lowered it back down and repositioned them. It’s all the way down for the weekend.

 

[dlbleak]

Ford made in-line check valves for a while that could be installed when the in-pump valves went bad. I don't know if they're still available from Ford, but I've pulled several from salvage yard trucks, and they've always worked fine. Unlike the in-tank valves, the add-on ones rarely seem to go bad.

Any way you could tell me the specific part name? I’d be interested in trying that