This is my 1st post in the forum, but I hope it helps others that have fuel pump problems... We have a 2005 Expedition and the fuel pump died. Tried to order a new pump only to find they are on national backorder until mid-February. I found a used pump and had that installed. The truck at least started and ran, but still stuttered and missed. Turns out, there is a fuel pump driver module that is basically the brains for the fuel pump. I never heard of this before, but at any rate, here is where lies the problem: The FPDM sits on the crossmember above the spare tire. Road grim, dirt, salt, etc collect on top of the crossmember and basically rot the FPDM. Take a look at the pic of the FPDM that we removed. The back of the FPDM is supposed to be solid!!!