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Old 03-05-2014, 02:32 AM   #1
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Gas Gauge stopped working!

Okay so my gas gauge just up and stopped working randomly, Anyone have nay suggestions on what it might be and how might I fix it??


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Old 03-05-2014, 09:18 AM   #2
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may be the sender - which is in the tank.

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Old 03-05-2014, 09:45 AM   #3
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Tell us what you were doing when it happen if you were off roading I would suggest looking at the wiring to see if the connection came loose or was broken.

If street driving normal conditions I would say look at the gauge cluster contacts could just be dirty use pencil eraser to clean them add Dielectric grease and see if that fixes it.

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Old 03-05-2014, 02:00 PM   #4
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Well I figured it happened when I took it wheeling because I took out one weekend and the gas gauge worked. About a week later I was gonna take it out again and I live close by to a place I take it so I drove down the back roads and I ended up running out of gas. The gauge is stuck and like the 5/8ths full and wont budge. Thanks for the suggestions so far!
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Old 03-05-2014, 02:46 PM   #5
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Yeah I would drop the tank and look at the sending unit it maybe bad.

Ps. drop tank when it is empty!
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Old 03-05-2014, 03:39 PM   #6
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Oh that's going to be fun, Well thank you for the Advice its much appreciated!
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Old 03-05-2014, 04:03 PM   #7
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Does the gauge go to empty when you shut the key off and back to above half with the key on? I would check sender then.
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Old 03-05-2014, 04:20 PM   #8
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No the gauge is like literally stuck at 5/8ths of a tank whether its on or shut off. Could that just be the gauge or do you still think its the sender??
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Old 03-05-2014, 06:33 PM   #9
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Yea it could be a stuck float but if its stuck at a reading even after jarring then most likely the gauge. The sender sticking 9 out of 10 times will move even when sticking if you jarr it. I would check your connections to the gauge before you drop the tank. I cut the floor out of the back with a bolted sheet metal plate for easy access.
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Old 03-05-2014, 06:43 PM   #10
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@Cubicone; I like the inspection plate, installation. I think I have to do that to my ride now. Thanks for the idea.
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Old 03-05-2014, 06:50 PM   #11
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Np. I picked it up working at a shop. Just some self taping screws. And some sheet metal plate and i even painted mine to match the floor. I also used some double sided foam type like for window seals to make sure there was no gas smell coming up and that stuff created a nice seal.
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Old 03-05-2014, 06:50 PM   #12
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Can try this before dropping the tank. Be easier

Repair w/pix - Stock Gauge Cluster how-to - JeepForum.com
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Old 03-05-2014, 07:03 PM   #13
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@YJwrangler92,
before you decide to drop the tank do this.
Get a multimeter that reads OHMs.

Open the dash drop the fuel/temp cluster gauge down do not disconnect the wire/harness.
At the harness you will see bunch of wires.
The wire that comes from you fuel sending unit is Tan/Black.
What you wanna do is take the fuel/temp cluster gauge and look in the back you will see
G / + / F this is for the Fuel gauge, take your multimeter tip and put the black probe put it on a clean ground anywhere you can find (dont use the cluster for this)
The Red probe put it on the F.
At Full your tank gives out a reading of 88-OHMs, Half-Full its 44-OHMs, Empty its at 0

This should at least give you a starting point.

You can also measure your temperature with this method putting it next to the fuel gauge Red probe on T and black on clean ground.

100F~=1330 OHMs
210F~=155 OHMs

This is the purple wire coming from the harness.
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Old 03-05-2014, 07:32 PM   #14
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Thanks for all the tips! If I can avoid having to drop the tank that's what I will do lol This gives me some other options to try first.

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Old 03-05-2014, 08:18 PM   #15
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I tend to think that your trouble is in the gauge or the gauge cluster, however, if you end up dropping the tank I have some pictures of the tank assembly that might help you get it repaired. I recently had to form out a dent in my fuel tank and snapped some pics while I had it out of the rig.


There is 9 pictures in the library that the shot links to, and a close up of the fuel signal sending unit with the cover off. Hope this helps.
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Old 03-05-2014, 08:21 PM   #16
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Quote:
Originally Posted by 4LinkFan View Post
I tend to think that your trouble is in the gauge or the gauge cluster, however, if you end up dropping the tank I have some pictures of the tank assembly that might help you get it repaired. I recently had to form out a dent in my fuel tank and snapped some pics while I had it out of the rig.


There is 9 pictures in the library that the shot links to, and a close up of the fuel signal sending unit with the cover off. Hope this helps.
If I have to go this way then this is defiantly gonna be a big help to me. Thank you I appreciate the help!

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