Question about 2004 Chevrolet TrailBlazer

2 Answers

Constant "full" fuel gage on a 2004 chevy trailblazer

Pulled related cb's to no avail.
will a scanner tell the code and from where can i download their meaning?????????
is the problem a lot more probable with the instrument cluster or the floater sending unit in the tank (can this be fixed by lowering the tank or an access cover from inside the vehicle) ????????????
THANK YOU VERY MUCH!!!!!!!!!!!!!!!!!!!!!

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  • joeorod Jan 23, 2009

    thanks a million to MrMark52 and MrScary66613 for their prompt and valuable insight to my fuel gage challenge

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It sounds like a broken wire somewhere between the gauge and the sending unit, if not within the sending unit, in the gas tank. And yes, you need to drop the gas tank. There is no access cover inside the vehicle.

Scanning codes will not tell you anything about this.

A Google search may likely give you others experiences, as I fixed an ABS probelm with my 01 Tahoe by searching this way.

A trip to your local repository library may allow you to access the factory service manuals which have troubleshooting charts to help you diagnose and fix the problem, as well as tell you how to disassemble/reassemble the the unit.

Posted on Jan 23, 2009

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You can actually Rent a Scanner at Auto Zone or Pep Boys. They will also have the Codes Sheet available there. It is Very Probable that it is the Sending unit inside the Fuel Tank causing the Problem. You will need to Drop the Tank for that Repair.

Posted on Jan 23, 2009

  • Travis Humphries
    Travis Humphries Jan 23, 2009

    No Problem! Happy to Help!

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