I'm looking in the fuse panel under the hood and I cannot find any of the relays marked fuel pump. Is it labeled as something other than fuel pump? I saw in another thread where someone mentioned relay number 66 but that isn't it. Thanks for any insight here.

 

Did you look at the underside of the fuse box cover?????

#66 is your fuel pump relay, it's a rectangle shaped relay at the back.

 

I might be wrong on this, but there may not be a fuel pump relay. The fuel pump might be controlled be an external module. The module is located under the body on the back of the vehicle. There might be a relay to power up the module.

 

Thanks WR3NCHE4D. You are correct there is no relay. There is a fuel system control module that is fused by a 20 amp fuse. The module is located in the spare tire compartment. I'll be checking the connections at the module and go from there. # 66 in the fuse block is actually an empty space for a fuse. There is no relay located there. Thanks guys. I think in '09 they changed the fuel system, the way it looks.

 

#66 is not a fuse, its a relay. This chart is upside down to what you look at when the lid is off the fuse box from over the front of the truck.





Here is the fuse box in the same orientation as the chart.

 

doc is right as usual, i looked at the full wiring diagram. it shows r 6 as the relay and fuse 3 as pump fuse.
hard to trace but it looks like the relay is controlled/powered by ONE of the 5 spark controllers?