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Unread 10-13-2009, 06:42 PM   #1
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1996 XJ Cherokee 
Join Date: Oct 2007
Location: Plainfield, IL
Posts: 83
Oil pressure guage pegged

Hey there all, my oil pressure guage has been pegged past the 80 psi (like it isnt even connected) and before it worked fluctuating from 40-80 so it was still messed up. Well I replaced the sending unit, still no dice its pegged at max. The needle doesnt move in the on position at all. I grounded the wire for the sending unit and the guage will go to 0 right when grounded so I know the guage works. I highly doubt I have 2 completely shot sending units, I plugged the sending unit into my friends cherokee and it works fine.

Any ideas?

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Unread 10-13-2009, 09:09 PM   #2
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1992 XJ Cherokee 
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Location: Texas
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Your gauge died.
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Unread 10-14-2009, 09:09 AM   #3
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1999 TJ Wrangler 
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Location: Las Vegas
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did you get the correct sending unit? there is one for the light on the dash for about $5 and one for the gauge for about $15. its just a thought as the previous owner had put the wrong one in on mine and thats what i had.

If you have the correct one and dont have a connection (wire) problem then as stated it likley to be the gauge in the dash i would think.
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Unread 10-14-2009, 09:21 AM   #4
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did you accidentally disconnect it near the oil filter last time you changed the oil?
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Unread 10-14-2009, 09:24 AM   #5
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1989 XJ Cherokee 
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Location: PA
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did you tighten it too tight. cuz it should be just snugged i believe
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