No, a failing fuel pump will cause the fuel pressure to drop. To see if the pump is weak or failing check the fuel pressure -- it should be between 58 and 65 PSI.
A hot relay can be normal, but if there is a problem with a wire connection, this will cause a relay to heat up. A connection problem can be inside of the relay itself or elswhere in the circuit. With these trucks a corroded ground can cause all kinds of problems. The fuel pump ground often corrodes. It is located just before the fuel tank and is connected to the frame crossmember. It is a black wire and comes out of the fuel pumps wiring harness. This one little ground is the cause of many fuel pump headaches. Try removing and cleaning this connection up.
The if the fuel pump is indeed at fault make sure you replace the fuel pump chassy wiring harness connector when the pump is replaced. This connector is a "one shot deal". When these connectors are plugged in that's it -- you cannot unplug and replug in this connector. If you do the connection will arc and heat up causing all kinds of problems---this is a defect in this type of connector.
Here is the fuel pump relay location below. Check out the diagrams (Below). Please let us know what you find.
Saturday, October 25th, 2008 AT 2:24 PM