How to Remove the Oil Pressure Sending Unit on a 2002 Jeep Grand Cherokee Laredo

Written by christian killian Google
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How to Remove the Oil Pressure Sending Unit on a 2002 Jeep Grand Cherokee Laredo
(Jupiterimages/liquidlibrary/Getty Images)

Changing the oil pressure sending unit or switch may be necessary, if the oil pressure light is on, and you have verified the oil level is correct in the engine. The oil pressure-sending unit on your Jeep engine is responsible for sending information to the computer, regarding the pressure produced by the oil pump inside the engine. If the sensor is failing, the reading may be erratic, and the computer may turn on the "Check Engine" light, or cause strange readings on the pressure gauge in the dash.

Skill level:

Things you need

  • Wrench set

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  1. 1

    Open the bonnet of your Jeep, and locate the negative battery cable, on the negative battery terminal. Loosen the clamp bolt on the cable end, with a wrench, and remove the cable from the battery. Set it aside.

  2. 2

    Locate the oil filter on the passenger's side of the engine, and look directly behind it. The oil pressure sending unit threads into the side of the engine block and looks like a small, round sensor, with a wiring harness connector on top of it.

  3. 3

    Pull the wiring harness connector off the top of the sensor, and set it aside. Place a wrench on the hex-shaped portion of the sending unit, and rotate it, counterclockwise. Continue turning the sending unit, until it is free of the threads.

  4. 4

    Remove the sending unit from the block, and discard it, if you are replacing it. If you are reusing it, set it somewhere safe.

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