1. xj with very high oil pressure

    My 92 xj with a 4.0 is running very high oil pressure .
    The gauge goes all the way past the numbers.
    Could it be oil sending unit?

  2. #2

    Re: xj with very high oil pressure

    I would start with the sending unit. Exessively high oil pressure will cause the oil to blow out the seals and out of other means of escaping the engine. disconnect the electrical connector to the switch and see if the gauge drops to zero. If it does, this verifies that there is no hard short on the electrical line. Replace the switch and retest.
    Confucious says: Don't eat the snow where the huskies go!

  3. #3

    Re: xj with very high oil pressure

    Thanks steelheadz I will give it a try.
    I would like to know if anyone else has had this problem

  4. #4

    Re: xj with very high oil pressure

    Quote Originally Posted by islandbum View Post
    Thanks steelheadz I will give it a try.
    I would like to know if anyone else has had this problem
    Yup. I have. Sending unit fixed it.

  5. #5

    Re: xj with very high oil pressure

    Make sure it's not just a loose/corroded wire connector first!

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