Fuel pump relay/rap module fuse keeps blowing

My 99 ford ranger 3.0L keeps blowing the fuel pump relay/rap module fuse. I replaced the fuel pump relay and then the fuel pump/sensing unit. The truck will start up and idle just fine. However when I go to put the truck into gear(automatic) the engine will die and I find the fuel pump relay/rap module fuse is again blown. At times I am even able to drive the truck a few feet before the engine dies and again a blown fuel pump relay/rap module fuse. I initially suspected either faulty fuel pump relay and then thought the fuel pump was failing thus I replaced both. Now I am at a loss at what to check next. Any help would be appreciated.

...I would start looking for a wire that's grounding out...

start at the fuel pump and move to the engine bay ( trace the wires you my friend have a SHORT some where

I'm Having the same issue, let me know if you track it down, I'll do the same

fuel pump relay and rap mod.

im having same deal? un plugged fuel pump and it stopped blowing the fuse,
so i stuck it on my lift and dropped the tank replaced the pump and fuel filter ,cause it was their lol and same darn thing ! blown fuse 20 amp under the hood
looked at wiring and plug in ,nothing,so than i i traced the wires under the driver door into the floor ,to under the seat and up to the dash ,nothing !
so now what ?? I'm not the greatest with wires but this RAP mod, is driving me nuts,some kind of security thing ? this truck has no power any thing ,1998 ford ranger ,2 wd??any 1 out their know anything about this problem ,or any way to bypass this deal, thank u

Broadway Auto, did you find a solution to this problem. Just started experiencing the smae thing.

I'm having the same issue with my 2000 Explorer XLT w/5.0 liter engine...I've replaced the fuel pump a while back, but noticed that just before this happened, the fuel gauge stopped working.

1998 Ford Explorer Keeps blowing #9 RAP/Fuel fuse.

My 1998 Explorer Sport had a failing transmission.
Let it sit for a year, tried starting it, battery dead, took it in, tested bad, replaced free of charge (Bosch battery).

Put in the new battery, crank but no start condition. Fuel pressure is zero. I can get the car to start by spraying start spray thru the throttle.

Checked inertia switch, it's pushed down. When I unplug the inertia switch, fuse does not blow. When I bypass inertia switch with jumper, fuse blows, figured it would but why not try.

I have switch out relays, which I hear don't cause fuses to blow anyway.

I have read a lot of these conditions, but have only read one guy finding a short near the gas tank.

My big question is, can a locked fuel pump cause the fuel pump fuse to blow every time the car is cranked to attempt to start?

I have heard of people replacing fuel pump, just to hear it didn't solve there problem.

I would like to get a recommendation of a good mechanic here in San Diego that can solve my problem.

Thanks.