what causes you to not get power to new fuel pump?

1998 GMC SUBURBAN
250,000 MILES
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CROB80
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I drove it to school, turned it off and when i tried to crank it an hour later all it would do was turn over. Didnt hear the fuel pump kick on so figured it was bad, bought a new one put it un and cant get power to it. Ive checked the relay and its good. Any suggestions please
Feb 26, 2012 at 1:11 AM
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RASMATAZ
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Could be the computer controlled of the fuel pump relay-
Feb 26, 2012 at 1:26 AM
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CROB80
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Changed the computer also and no change. Simeone said check the crank sensor but i dont know how many ohms it is supposed to read.
Feb 26, 2012 at 1:37 AM
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RASMATAZ
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Check ignition fuse E 10amp-see below
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Feb 26, 2012 at 1:48 AM
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CADIEMAN
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lets start by checking the fuel pump and the enjecter fuses.with a meter or test light.
Feb 26, 2012 at 1:59 AM
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CROB80
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Im not getting power to the box under the hood that the relay plugs in to. Where does the power come from
Feb 26, 2012 at 5:25 PM
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CADIEMAN
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does the 10amp fuse ing e fuse show voltages with a test light or multi meter to check voltage its under the hood.if it has power on both sides of the fuse. pull the relay out their is a diagram on the side and check for power at pin 30 with the key on.start here
Feb 27, 2012 at 12:56 AM