Question about 2005 GMC Envoy

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I have a 2005 Envoy, the fuel gauge does not work when full, always reads empty. The stereo only works when it is over 100 degrees and dry outside, the warning sounds (i.e. seatbelt, lights etc) are not audible anymore, the speedometer does not work at times, the oil and battery gauge do not work, always on one end or the other and the dashboard lights went out on one side. ARGHHHH.

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Pretty common problem with these. Here's a guide to learn how to fix GM instrument clusters yourself, I used it to fix mine and it worked great.How to guide for Silverado instrument cluster repair
Pretty common problem with these. Here's a guide to learn how to fix GM instrument clusters yourself, I used it to fix mine and it worked great.How to guide for Envoy instrument cluster repair

Posted on Oct 07, 2010

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Well the gauge and lighting problem is a common issue with the 03-05 Envoy instrument clusters and can be fixed. It's caused by failing stepper motor and bulbs on the cluster's circuit board. Check out this page for more on how to get it fixed - Envoy instrument cluster broken

Posted on Sep 30, 2010

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I have a 2003 GMC Envoy and my gas gauge has been flowing up and down to empty and full recently it has stayed on empty. How do I fix it?


Ensure that all of the wire connections are clean, secure and corrosion-free.

  • 2 Check your fuel gauge fuse if the gauge's indicator stays on empty when your turn on the ignition. If the fuse is good, join the sending unit connector to ground. Replace the sending unit if the gauge indictor moves to the full line.
  • 3 Ground the terminal located on the back of the fuel gauge with a jumper wire if the indicator doesn't move. If it does move, consider replacing the wire between the fuel gauge and the sending unit. A poor ground is frequently responsible for fuel gauge problems.
  • 4 Release the wire that connects to the fuel tank's sending unit. Confirm that there's no worn insulation that would permit wire contact to the body or frame. A fuel gauge reading of full generally indicates a problem with the tank unit, not the wiring.
  • Oct 18, 2011 | 2003 GMC Envoy

    3 Answers

    2005 envoy gas gauge is always on empty even when i fill up


    Common problem is for the tiny stepper motor to go out in the back of the guage. Can buy off of E-bay, very cheap.

    May 30, 2011 | 2005 GMC Envoy

    2 Answers

    The fuel gauge is'nt working.I tryed to ground it


    When testing a fuel guage you should disconnect the wires to it,guage should read over full,ground the float wire,turn off key then turn back on should read empty.You have to cycle the key for guage to move.If still inop the wire is broken in the harness between the tank and the dash.Voltage on the float wire is low.When tested with a test light it will barely light the light and pulsate.This test indicates the wiring is good.

    Apr 17, 2010 | 1991 Chevrolet C1500

    1 Answer

    02 super duty with 7.3 fuel gauge will give false readings.


    COULD BE THE FUEL SENDER OR YOU HAVE A POOR GROUND POINT IN THE CABIN.
    WEIRD AND MULIPLE MALFUNCTIONS ARE USALLY A POOR GROUND.

    Nov 17, 2009 | 2002 Ford F250 Super Duty SuperCab

    3 Answers

    Gas gauge problems


    Common problem on the 03-06 Envoy instrument clusters for the fuel gauge to go out. It's usually caused by one of two main problems, either the stepper motor on the cluster's circuit board is going out or the sending unit on the fuel pump is going out. Check out this blog post about the problem - Envoy fuel gauge problems

    Jun 13, 2009 | 2006 GMC Envoy

    2 Answers

    Even with a full tank my 2005 Envoy XUV fuel light stays on and fuel gauge marks empty


    u need to change this gauge or try to dissasseble and clean it very well then try to install it back again

    Jun 06, 2009 | 2005 GMC Envoy Xl

    2 Answers

    2006 GMC Envoy XL gas gauge reads empty after filling, then slowly moves up after driving but will continue to lose pressure until it reads empty and the light is on, then the check engine light came...


    Sending unit. Its all one unit including fuel pump, float, ect. The check engine light is because of the high or low resistance in the unit. Let me know if you have already fixed.. You have to drop the tank to get to it also.

    Feb 24, 2009 | 2005 GMC Envoy Xl

    1 Answer

    Fuel tank gauge always on empty


    the float on the fuel pump is stuck or need to be replaced

    Feb 09, 2009 | 2005 GMC Envoy

    1 Answer

    1989 Saab 900 low level fuel light


    You don;t say whether the fuel gauge is reading accurately, or whether it's always on empty. If the gauge is always showing empty, it's most likely a problem with the sending unit in the fuel tank. Check the resistance across the two terminals of the sending unit.

    On a C900, the fuel sender level unit is separate from the fuel pump and located on the right side top of the tank, accessible by removing the trunk floor lift up panel (the pump is located on the left side top of the tank.
    Possible problems are: electrical line off or broken, float not working (it's fairly delicate); or gauge not working.

    Test the resistance of the sending unit with the lines disconnected, the resistance should be 2.6 to 3.8 ohms full tank, 63.3 to 67.5 ohms empty tank; and test for voltage across the top of the sender unit, if no voltage, that's likely the problem!

    If the gauge is otherwise reading accurately (showing 'full' for a full tank, etc) then the problem is likely a gauge malfunction and can be simply replaced.

    Good luck!

    Saabreur

    Jul 10, 2008 | 1989 Saab 900 4 Door

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