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[random electron]

Hi,

My Suburban has become hard to start. It has to crank for awhile and then
it starts and runs fine. I checked the fuel pump relay and found that the
coil is energized for a few seconds when the key is put into run. However,
when I checked for voltage at the relay contacts, there was none. The wires
run through a short section of plastic shield and then enter the engine
harness. I do not know where they go.

Is this circuit fused? (or fusible link) If so, where?
Where does the power feed come from?
Any places to look for a broken connection?

Thanks