Engine dies when switched to front gas tank

[zakspeed]

I have a 1993 Lightning (all stock) when I switch to the front the engine dies.The front tank gauge functions the fuses and relays check out OK.Is the fuel pump bad or could there be a clog in the line?Is there a way to check the pump before I drop the tank.

Thanks for your help !

[ajpletcher]

Your just out of gas.

No first check to see if you have a fuel filter before the valve for the tanks. If you do change it. second you could take the line off from the front tank to the valve and see if you can get fuel at least up to there.

I say this because you could have a couple different problems.
1. Clogged fuel filter,
2. no power to your tank valve,
3. power but a bad ground,
But those last two wodent explain the lack of fuel after a switch.

Hmmm, Check filters first, In tank fuel pump? or external pump?


I would start there, filters and wiring!

[ajpletcher]

ok you have an in the tank pump, just looked it up, i would take the fuel line off the valve and turn the key on and see if you get any fuel

[buckandahalf]

When I worked on (excuse my French) Toyota's, first step to diagnose fuel related problems was to put fuel pressure gauge on the vehicle. I'm a new Ford owner, so tracking down and repairing Fords may be different. I had an extra 2 cents burning a hole in my coveralls.