tk SPOKANE

so as the title states, I have to wack my fuel tank with a mallet to get fuel pump to start I have checked fuel pump relay, fuel injector fuse, replaced fpsm above spare tire, replaced filter, is the pump toast or what? or should I check a certain wireing harness if so where and which one? thanks

Rossco

Well it sounds like its smoked.

Either way you need to pull the box off.

One last thing if you can, reach over the tank and check the plug for the pump. Does your fuel gauge still work?

tk SPOKANE

i haven't really tried to find a plug in on the tank would it be towards the front , which way would be the easiest to access it? yeah the gauge is still reading half a tank which should be accurate

Rossco

The plug clips right on to the fuel hat and is usually on the left hand side. You will need to go in from that side.

tk SPOKANE

left side drivers side? towards the front or the rear of the tank?? I should be able to feel around and check for loose wireing without removing bed or dropping the tank?

Rossco

I don't know your wheelbase / configuration but on my 04 RC the hat is 1' back from the cab. Look under the truck (Drivers side) and you will see a cover on the frame rail and the park brake cable catch bracket. It's somewhat up over there.

tk SPOKANE

when u say either way ill need to pull the box off are you referring to the undercarriage or the truck bed? mines an 04 fx 5.4 and I'm looking for the clip that plugs into the fuel hat? okie dokie that's my task for the day

4x4Fun

There are two ways to get to the fuel pump, the hard way (drop the tank) and the less hard way (take the bed off the frame). Taking the bed off the frame is less work, just need a buddy to help lift it off.