THIS IS ALL ON MEMORY SO GET YOURSELF A WIRING DIAGRAM FOR THAT TRUCK!!!
If you have one you should install an inline fuel pressure gauge to verify that you are indeed not getting fuel pressure first. Assuming you have no fuel pressure, it could be one of a few things.
check all of you fuses
if ok, check fuel pump relay for activation during engine cranking. I believe in that vintage Ford, the oil pressure switch is responsible for activating the relay. So with a test light backprobe the activation wire at the relay. if you get activation power at the relay, and no relay activation, then yes it is the relay, but if you get nothing, then it will be the oil pressure switch. If you get activation to relay and still no pump activation then you might have a break in the wiring OR the fuel pump has short brushes.
I know thats alot to take in but hey thats what a diy forum is for right? Good luck!!!
SOURCE: where is the fuel pump relay located on 96 ford
In the under hood fuse panel. it is the one beside fuses 15 and 16
It's under your hood, in one of those boxes, and should be marked. Your pump won't cut in if it's fried either. Check to see if there is power at the pump. Maybe you just have a loose wire. You can always hope!
SOURCE: location of a fuel pump relay on a1993 f150 with
should be under the hood, either in the main fuse block or in a seperate fuse block with two other relays in it.
SOURCE: no power to fuel pump or fuel pump wiring harness...
try the electrical ignition switch on the steering wheel colum
SOURCE: 91 ford ranger...fuel pump will not run pump is good
It won't hurt to jump sire to drive, It is designed to pump all time when the engine is running. The only problem is the pump should not be on if engine is not running since it is designed that way to prevent a fire while pump continues on once engine is stops in a car accident. There is a control device to immobilize the fuel pump, if there is no speed sensor signal from the crankshaft. This needs to be located and fixed.
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