Question about 2000 Jeep Grand Cherokee

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My oil pressure gauge is all the way to the right 80psi

I changed my oil two weeks ago. Now my oil pressure gauge is reading 80psi all the way to the right.

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  • Anonymous Mar 25, 2009

    i change my oil recently and have the same problem, but could tell its the sending unit cause when i turn the kew on its already pegged out to 50 psi without the car on. auto store said it was the sending unit. makes sense

  • Anonymous Apr 06, 2009

    same problem except at idle the pressure reads 50 psi and at 45 mph it is 80 psi

  • Anonymous Apr 16, 2009

    I also have the same problem right after changing to mobile1 synthetic

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New oil has a higher viscocity and will read higher than the old oil, especially right after change because the oil is not hot yet. also, was it a different weight and type than previous oil? Just a consideration. But, if the psi never changes or drops but stays at one reading, then yes, sender is a good place to ck. TH Mech. Tx

Posted on Dec 06, 2011

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The oil pressure sensor is bad,did you by chance change to synthetic oil recently,my jeep did the same right after changing to mobile1 synthetic

Posted on Dec 30, 2008

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1 Answer

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Jul 06, 2011 | 2001 Jeep Grand Cherokee

1 Answer

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