blacksslumina

Just bought the truck, its 1992 f-150 5.0 when i switch the rear tank on the truck starts to die not getting any fuel. what do i need to do to start trouble shooting this prob. Thanks from ur new forum member!!!!

powerglide

times its gonna be a bad in tank pump.Almost always, especially if the previous owner ran it low on gas alot.

noduh2dayisright

Alot of times the rear tank doesn t work because the actual gas tank is rusted out and won t hold gas, that's been the problem with all mine at least

blacksslumina

mine holds gas, my wife accidentally filled it up she didn't know it had two tanks, so i have 30 bucks worth of gas i cant use sitting in the truck now. so after i drain it. i will try cleaning the filter or just replace it. thanks for the response fellas.

JezClay

I had the same problem. It was the in tank pump.

James 302

I doubt it's the filter. My friend had the same problem with his F-150 a while back, fixed with a new in-tank fuel pump. This can come with age, or running it while low on fuel a lot. Good luck.

W Ligon

So you should keep like a 1/4 tank in both most of the time?

And uh is it possible my tanks are 14 and 16 gallons? 1992 F150 Ext cab 5.0l V8 short bed.

johnnycal

92? It's an 18 gallon tank.