1999 4.3 4wd Jimmy SE won't start

willp

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after trying many times the engine will not even try to start. It has spark and I've poured fuel down the throttle body with nothing happening. I no longer hear the fuel pump whirling when the key is turned on. How can I check the wires for power to the fuel pump without dropping the tank? What voltage?resistance is normal at the fuel pump relay?
ty in advance
will
 
Do a fuel pressure test, first.
Red Neck
 
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