Question about 2004 Chevrolet TrailBlazer

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2004 chevy no power to fuel pump have replaced fuel pump and rellay still no power, have jumper across relay still no power

No power to fuel pump have jumper wire across relay still no power, no broken wires

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  • Chevrolet Master
  • 443 Answers

You sure its not a security problem ? are you using the right key you always have ??

Posted on Jun 26, 2014


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Posted on Jan 02, 2017

  • 172 Answers

SOURCE: I have a 2002 chevy blazer 4.3L that wont start

are you using the original key ?? sounds wear but in the key switch there is a sensor that detects if the right key is in use otherwise it will kill the power to the fuel pump or it can be a fuse look under the left rear passanger seat there is another set of fuses and the other set of fuses are on the driver side near the door and there is another set of fuses and relays inside the hook next to the battery

Posted on Apr 01, 2009

  • 76164 Answers

SOURCE: changed fuel pump replaced relay checked fuses

Was the connector to the pump replaced? There is a factory bulletin to replace the connector. Also keep in mind the pump runs only one second unless the engine is cranking or started, the computer shuts it down otherwise.

Posted on Jan 30, 2011

  • 227 Answers

SOURCE: 97 chev express 2500 --

replace relay

Posted on Feb 03, 2011

  • 2002 Answers

SOURCE: checked the orange wire and get no voltage can run

Put a fuse into your jumper wire and splice it into a powered wired under the hood. Make sure where you splice it in turns on and off with the key. Hope this helps.

Posted on Sep 27, 2011

  • 295 Answers


camshaft you have coil or distributor

Posted on Aug 17, 2012

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If you do not have power on the GRAY wire at the fuel pump.........
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something is killing the relays poss fuel pump drawing to much amperage check pump with amp probe is pump noisey?

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Really need more info, but it could be a simple ground wire! Frankster016

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