Question about 2004 Chevrolet TrailBlazer
Relay is good --i can jump power and pump runs
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Posted on Jan 02, 2017
SOURCE: 1992 1500 will not start
even though the relay clicked dosn't mean that it's good it could be weak and therefore the gate inside the relay doesn't make a contact to allow the voltage to the pump. i would switch out the relay. quick way to find out for sure is to switch the a/c clutch relay with the fuel pump relay. it should start if it doesn't then you have a loose wire to the pump or a broken wire aor a bad ground. check these out.. please rate this..thanks
Posted on Sep 06, 2008
Your ECU is what acctivates your fuel pump realy. Put the key on the run possition and pull the ecu fuse for a few seconds and reinstall it ans it should accivate your realy for 5 seconds, Good luck.
Posted on Apr 06, 2009
I've been bitten by this twice! The culprit both times was the connector plug under the van infront of the fuel tank. the second time the connector pin and socket came loose inside the plug itself,( workes for a while then dosen't). Make sure there is good secure contact made in all sockets in this plug, and the pins are held where they need to be inside the plug itself.
Posted on May 29, 2009
some times even though thy the fuel pump that is is bad you can git one or two more starts out of them by giving the gas tank a good jar-not so hard as to dent it .with key on you should hear the fuel pump start to run .if this is the case you will wont to replace it very soon
Posted on Mar 12, 2010
Tips for a great answer:
Sep 05, 2014 | 2000 Dodge Durango
If the main fuel pump doesn't begin running when jumped (you should definitely hear it humming), you either have a faulty fuel pump or faulty wiring to the pump (bad wiring is really common under an old 240, near the pump). This test of course assumes your battery is good.
If one of the fuses blows during this test, the pump circuit wiring is shorting to ground somewhere between the fuse panel and the pump.
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