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Oil Pressure Sending Unit

Discussion in '1982-Present GM Diesel' started by AzzKicker, Sep 7, 2002.

  1. AzzKicker

    AzzKicker 1/2 ton status

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    Bought some aftermarket guages and I got water temp, voltage all hooked up. But I cant seem to find the oil pressure plug. The guage has a vinyle tubing that needs to go somewhere but i dont know where I could put it.
     
  2. Tybee

    Tybee 1/2 ton status

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    Not sure but I think you bought a mechanical gage and I think you need a electric one.
     
  3. 6.2 man

    6.2 man 1/2 ton status Premium Member

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    The oil sender from the factory is on the back of the engine by the vacuum pump .The only place I can think of
     
  4. Can Can

    Can Can Pusher Man Staff Member Super Moderator

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    I agree with Tybee. It sounds like you either have to buy yourself an electric gauge or take out your electric sender and install a mechanical one.
     
  5. arveetek

    arveetek 1/2 ton status

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    The stock electrical sending unit for the oil pressure is shaped like a bell, has one wire pushed into it on the top, is mounted at the rear of the engine on the block, pointing up. Use a 9/16" wrench on the bottom of the sending unit to unscrew it. Then screw in the fitting that came with the guage.

    There is also a plug in the side of the engine above the oil cooler lines, but it's hard to get to.

    Casey
     
  6. AzzKicker

    AzzKicker 1/2 ton status

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    so the one thats easiest to get to is behind Air filter. Is it pretty visible?

    Its on top of engine right?
     
  7. Can Can

    Can Can Pusher Man Staff Member Super Moderator

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    It's on the top of the block on the driver's side of the vacuum pump, which sits in the same place as the distributor on a gasser. Like Casey said, it's screwed in and looks like a little bell with one wire attached to it at the top.
     

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