I have a 1995 Ford F-150 and the other day while driving she started to bog like she was out of gas. I switched to the rear tank and proceeded to the nearest gas station. I put gas into both tanks and left. While driving I went ahead and switched back to the front tank and the motor died again like no gas. Reading in my Hanes book there appears to be a couple of things it could be. Bad fuse, clogged filter or even bad pump. I noticed you must relieve fuel pressure before checking filter. Suggestions? Where is the relief switch? I might add the filters are the originals so I think I'll start there and the fuse. Where is the fuse located? Anyone else ever have this problem? If it is the pump I'm assuming the tank must be dropped. Thanks for any help.

 

I think the fuse for that is under the hood in that fuse panel, but if you look in your manual it will direct you to the location of the fuse for that. As far as relieving the fuel pressure, I just get a bucket and hold it under the fuel line and pull off the line going into the filter. It's probably not the right way, but it works.[8D]

Before you start the car back up, turn the key to the run/on position without starting it and let the fuel pump hum to pressurize the line. Do this a couple times before cranking the engine over. It will help so you don't have to turn the engine over as long before it gets fuel.

You could probably check to see if the fuse is bad the same way. (Your tank switch has to be on the "bad" tank.)

 

if you switch the tank to the front, start the truck and if it runs good for a couple minutes and then starts running like crap, it's your fuel pump, and instead of dropping the tank which is a pain in the @$$ job, i find it's easier to get a couple of friends and take the box right off the truck.

 

Well finally got around to dropping the tank and removing the fuel pump. Before taking it down to the dealer to match up numbers and order a new one I decided to try a little experiment. Took the pump to the front of the truck and using two jumper wires one from the positive and one from the negative side of the battery. I touched them to the corresponding posts on the pump and low and behold it began working. Did this a couple of times and she worked great. Took it around the side of the truck and pulled the wiring harness from underneath. Connected it to the pump and changed the selector switch in the cab to "front" and the pump worked. I was thrilled. Put it back in the tank connected all the lines and filler tube. Raised the tank up with a jack into place and thought to myself before I bolt this in better try it again. BAM!!!! Nothing. Fiddled with the harness a little and still nothing. I noticed a little corrosion on the pins in the harness. Going to get my meter out and see if I have power to there in the morning. Also gonna clean up those pins a little. If the relay were bad would the rear pump continue to work? Wouldn't they both shut down. It could also be the selector switch although I doubt it. Any ways I'm glad I didn't get it all bolted back in. Hopefully it's at the connector. A new pump runs $130.00 without the fuel level reader. That's another $50.00. Don't mind spending the money if that is the problem. Just hate to put a new pump in and it do the same thing. When changing the selector switch from front to rear you can hear the whine of the rear pump so I know it's working. When the front was working I could switch back and forth and hear the whine from both.