Fuel gauge

[rokcrwler]

So my fuel gauge went crazy (way past full) the other day. So I pulled the dash apart and cleaned the connection plug that goes into the back of the cluster and it worked for a month or so.. I did it again and this time it only stays correct until I turn the key off and back on..? Even if I just wiggle the connection itll read accurate only until I turn the key off to back on. Any Ideas? Thanks

[jimoshel]

Loose, broken wire going from the wiring harness to the plug? Don't think you can reach it from under the dash, may have to pull the cluster a bit. With the ign sw on, wiggle the wiring harness-connector. See what the needle does.

[xjrev10]

Your comanche should be parked in a climate controlled garage right now!!

 

If you cannot figure out whats going on, I have a different cluster or two that you could try.

[rokcrwler]

If I unplug the connecter from the cluster and plug it back in, its good untill I turn the key off and back on. I'm not sure why it would loose power after that?? Even just wiggling the connecter it won't work right again untill I unplug it..

[Jeep Driver]

I'll be the signal from the sender is weak.......too weak to hold a constant reading.

 

 

I have a XJ and the oil pressure gauge was acting in a similar way and I thought for sure it was the gauge until I tried another sender and it works fine now.

[JeffN]

full reading is usually a ground problem

[rokcrwler]

What ground? on the tank? the sender? or on the cluster? -or-

Do I just replace the sender? If I change the sender, will I be able to get it from the parts store? or??

 

Thanks for all the help

[rokcrwler]

Still curious as to which ground I should be looking at? Or adding??