post #1 of Old 09-01-2010, 05:09 PM Thread Starter
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1989 YJ Wrangler 
Join Date: Sep 2010
Location: coopersville
Posts: 1
oil and temp gauge

I have a 89 yj and my oil pressure gauge goes to the max when i turn the key on
and will move a little, but when i start it it stay at max. With my temp gauge it doesn't move at all when on or running. was hoping some one could tell me how to fix this.. already replaced the temp sensor

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post #2 of Old 09-01-2010, 05:45 PM
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1990 YJ Wrangler 
Join Date: Jan 2009
Location: victorville,ca
Posts: 1,864
The oil gauge most likely needs a new sending unit. the Temp gauge could be as simple as the conector coming off the sending unit. The sending unit is towards the back of the head on the drivers side by the fire wall

1990 YJ = The Toy/ My Daily Driver
1996 XJ= Wifes Daily Driver

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post #3 of Old 09-01-2010, 06:08 PM
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1997 ZJ 
Join Date: Sep 2009
Location: Cumberland, Maryland
Posts: 3,159
you can also pull off the cluster and clean up the contacts. Although I did that and while it did give me lights again, it did little for my gauges.

First Jeep was an 1989 YJ, 6 cylinder 4.2L , 258. Nuttered and TeamRushed, Weber 38 DGES, Now, I'm venturing into the world of Grand Cherokees
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help needed , oil gauge , temp gauge

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