94'snap

I was driving today and my truck just died on me, It will run on starting fluid so the problem is fuel. You don't hear the fuel pump prime when you turn the key on, and I changed out the relay and checked the switch on RH side by the passenger door. Is there anything else that is inline before the pump?

I am going to check power to the pump but is there some switch or something I missed??? Its a 94 f150 with the 300 I6

ymeski56

The fuseable link, useually just below the relay. Check for voltage coming into the relay.

Just call me Sean

iTrader: (1)

It goes fusible link, fuel pump relay, inertia switch, tank selector switch, then fuel pump. Put power to the green/yellow wire at the fuel pump relay and see if the pump comes on. Yellow should have power always and red should have power with the key on.

94'snap

You guys are talking about the fuel pump relay in the power box under the hood right?

Just call me Sean

iTrader: (1)

Yes.

94'snap

Is the inertia switch the one under the dash in the cab?

94'snap

If one of ya guys get a chance can ya call me 609-610-0901

ymeski56

yep.

94'snap

Talked to Sean and this is what I got so far-

I get one power at the relay with the key off and I get 2 hot when the key is on
I get power at the inertia swich for a few seconds when I turn the key on, so I just put a jumper in and tried to crank it and got nothing

So tomarrow I will see if I get power at the pump and prob crack the filter to see if it is that. The filter was replaced about 30,000 miles so it may be do for a nother one.

ymeski56

Well, good luck! Simple is always better!