Question about Chevrolet Silverado 1500

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Having problem with my fuel pump the no power getting to it. i check the fuse and they are all good. this is a 2003 chevy silderado

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  • Chevrolet Master
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I HAVE A 96 S10 LT BLAZER AND RESCENTLY DID THE FUEL PUMP THERE SHOULD BE A CLASS ACTION LAW SUITE GM . THERE WERE 14 HOLES IN THE TOP OF MY GAS TANK WITH THE NEW DELPHI PUMP OEM STANDRED SERVICE BULLETIN #25215705 DATED 3 07 STATES YOU NEED TO REPLACE WIERING HARNEST TO FUEL PUMP DO TO FIRE HAZARD CAUSED BY OVER HEATING

Posted on Oct 11, 2010

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Posted on Jan 02, 2017

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Begin by checking fuses. Ignition, efi, fuel pump fuses. When key turned to on, do the warning lights and gauges work? That verifies switch has power and is sending power out. With key on, the coil primary wire to coil packs should have voltage.

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start by checking the fuel pump fuse and relay. will the fuel pump run for a few seconds when you turn the key to the run position? If so you may need to replace the crank position sensor. When this goes bad the engine will turn over and start, but only run for a second or two then die like its out of gas.

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Trying to find the fuel pump FUSE.


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check for voltage at the pump. If it has 12v there, (and a good ground) then pump is bad. there may be a pump fuse on the fuse block (can't remember) but if you find it has blown, the pump may be getting ready to fail. If fuse fixes the problem, replace it and carry an extra with you, then change the pump.

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im not sure of the color wires that should be powered but have you checked the fuel pump relay under the hood? also check that you have a good ground at the pump dont check just the positive voltage check for negative (ground) also

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