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Low oil pressure readings


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  • Low oil pressure readings

    I have had problems with low oil pressure readings for years. I have owned this 1980 CJ7 with 258 Inline 6 since new. I have the original electric guage. I have ordered and replaced the guage and many sending units with no real change. The original sending unit has a 3 terminal connection. Does anyone know what color wire is for what? The pressure looks good with a mechanical guage but I would like to keep the original electric type for several reasons. Has anyone else seen this type of problem and do you have a possible solution?
    Last edited by Albert Gaines; 06-18-05, 10:48 AM.

  • #2
    The oil pressure gage sending unit is a gold colored bell shape with one wire, the sending unit with the red wires is for the electric choke. Maybe try a mechanical gage, at least for a test.

    The thing must have oil pressure, it has been running for 25 years.
    1956 Willys Wagon restomod