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Unread 11-11-2004, 06:08 PM   #1
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Fuel Gauge Not Working? Try This First....

Ok, we all know about the legendary Jeep fuel gauge. If yours doesn't work, try this first. Take apart the center of the dash and remove the gauge. Take some fine sandpaper and clean the contacts on the back of the gauge and on the circuit board that the gauge mounts to. After you clean them off, put the gauge back and then turn your ignition on. If it doesn't work, try cleaning them a little more, making sure you covered all the spots where the gauge contacts the circuit board. Then put the gauge back in again and see if that does it. I figure it's worth a try. It's easier than replacing the sending unit and cheaper than replacing the gauge.

[B]'88 YJ: 6 cyl, 5 spd, 142K
Modifications: None (keeping it running in stock form is expensive enough)[/B]
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Unread 11-11-2004, 07:06 PM   #2
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1992 YJ Wrangler 
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i did this when my voltmeter went out. definitely something to check before replacing the more complex stuff. just watch you don't bend the needle of the gauge doing it. i would also recommend a light coating of di-electric grease (same stuff you use on spark plugs) on the clean terminals to help prevent corrosion from reforming.
RIP: '88 YJ 2.5L Ax-5 NP231
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Unread 11-12-2004, 07:35 AM   #3
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My guage didn't work and I did exactly that and it fixed everything.. just to confirm your experience to others
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1998 TJ 4.0 Auto Sahara Package 4" Suspension Lift 33 BFG Hard & Soft Top
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Unread 11-12-2004, 12:01 PM   #4
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I had the same problem with my voltage guage. After checking all the wiring, I pulled the guages, removed the nut from behind the guage, and pulled off the contacts (yes, they just pull out). The contact surfaces were all green and oxidized. After cleaning them up, the guage worked like a charm.
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Unread 11-13-2004, 12:56 AM   #5
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i had a similiar problem. the inside lights didn't work, tach didn't work, no gauges worked, no gauge lights worked. took gauges out cleaned them - nothing.

Took a look at the fuse box - totally blueish green. went to autozone bought an ignition point file (3 in a pack for 3-4 bucks) very thin. went to town on the two clips that hold the fuses in and the fuses themselves.

Guess what - everything BUT the fuel gauge works fine.

My fuel gauge goes down to 3/4 tank and sticks there.
1991 yj Red Wrangler 2.5 liter 5 speed - herculined
1997 zj Black Jeep Grand Cherokee Limited I-6 select trac
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Unread 11-13-2004, 11:03 AM   #6
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THANKS for posting that! I had an inop oil press gauge- I just finished stripping it down, used my dremmel tool with the wire wheel and cleaned everything up (gently of course) and I have oil pressure again!! Thanks for the tip!
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