Fuel pump run on on a 1988 F250 460

Hello,
My first time on this forum. Looks like a good one. I have an '88 F 250 with a 460 engine. It has an in line electric fuel pump which is running on after the truck is turned off. The only way I can get it to stop is to unhook the battery cable. When I rehook the cable the pump starts again. There isn't any fuel leaking. Is there some sort of pressure switch . The truck still starts and runs well.
Thanks YC

If you don't see a leak, then it might be the fuel pump relay its not shutting off the power when the fuel line is presssureized.

Thanks for the reply. Any idea where the fuel pressure sensor relay is loacated on that truck?

For sure it's a sticking relay. (fuel pump relay). Both of them should be mounted on a slim metal holder gig on the drivers side inner fender. (pretty much directly over the tire).
Common concern/problem. Usually tho someone's disconnected the relays, and they're laying upside down, (where they collect water/crap, and corrode/go to hell fast).
Cheap repair tho, if it's just the relay. Under ten bucks if I remember right.
In either case, good luck, have fun.

(while you're there, ya might as well replace the PCM relay too). CYA.
[addsig]

I concur with dragstang. A sticking relay is very common. My '88 stang had one. I used to just whack it to get it to stop until I could change it ( it was under the driver seat). Stu