How to replace an oil pressure sensor switch on a 2005 2.4L Chrysler PT Cruiser

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What you need to replace an oil pressure sensor on a 2005 Chrysler PT Cruiser:

A pair of jack stands
A jack to lift the car
Chrysler PT Cruiser 5149098AA Oil Pressure Switch Genuine 5149098AA Oil Pressure Switch
1/2-Inch Drive 27mm deep socket
1/2-Inch Drive ratchet
A 1/2-Inch universal joint
Eventually a 1/2-Inch drive extension bar
15mm wrench

A defective oil pressure sensor switch may cause an oil leak. The oil light may come on and a P0522 error code can be read on your OBD-2 scan tool.

You can replace this sensor without draining oil.

You need to lift your car onto jack stands.

PT Cruiser sur chandelleLet your engine cool off before working under your car because the oil sensor switch is hard to reach and you could burn your skin.

Go under your car and try to find the oil sensor switch. It’s located to the left of the oil drain plug behind some electrical harness:

Position du capteur de pression d'huile sur un PT Cruiser 2.4L essenceIn the next picture, you can see the sensor connector:

Position du capteur de pression d'huile sur un PT Cruiser 2.4L essenceWith the 15mm wrench, remove the harness support (white arrow on the next picture):

Dévisser le support du faisceau de câble pour libérer un peu d'espaceYou will have you more room to reach the oil sensorPosition du capteur de pression d'huile sur un PT Cruiser 2.4L essenceTo get the wiring off, you need to slide the red clip (as show in the next picture):

Chrysler PT Cruiser Oil Pressure Warning Light

You can push on the connector and get the wiring off:

Chrysler PT Cruiser Oil Pressure Warning Light

You can now use the 27mm deep socket to remove the sensor. Not so much room to work, so you may use a universal joint and eventually an extension bar.

Reinstall the new sensor in reverse order of removal.

Lower your car and start the engine to check if everything is ok.

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15 comments on “How to replace an oil pressure sensor switch on a 2005 2.4L Chrysler PT Cruiser
  1. Phillip says:

    Your instructions do not give a psi torque setting for the installation. And should Teflon tape be used to reinstall??

    • PT Cruiser Repair says:

      I fact, I did not use a torque wrench. Neither Chilton nor Haynes says anything about the torque specs. I tried not to overtighten.

      On my 5149098AA Oil Pressure Switch, teflon tape was already set. If your sensor does not have teflon, you should add some.

      Best Regards

      Ludovic

  2. Ceri Virgo says:

    Sounds so easy but I’m struggling to get more than 1 finger on the contact to remove from it off thr switch. Guessing thinner forearms & smaller hands are required.

  3. Francisco says:

    Hi, i just changed the sensor of my 2003 PT California Edition, 2.4L 16V
    Don’t forget to use a 1-1/16 deep socket and a bar. The new sensor already has teflon gasket

  4. arland says:

    could a bad oil senor cause the engine light to come on

  5. arland says:

    COULD A BAD OIL SENOR CAUSE THE EMGINE LIGHT TO COME ON

    • Mark says:

      No if we are not illuminate the check engine light.it will only illuminate the oil pressure light as well as giving audible chime looks like a little red oil lamp

  6. Giovanni says:

    Hello the torque setting is 21 Nm (190 in.lbs) according to the vehicle service manual. However if you screw in the switch by finger until you can, you can give a 1/4 turn more with key to tighten the switch, it’s suffice.
    Also the switch could be found on Ebay for about 15/20 Euros, shipment included.

  7. Giovanni says:

    Adding to my previous message:
    this switch controls the oil low pressure warning lamp, there is another oil check unit in the engone, it is a pressure sensor, it has three pins connector, (the oil pressure switch has only two pins), buy it does not control the warning light.

  8. David Aylor says:

    How do you get the wiring disconnected from the sensor?

    • Patrick R. says:

      Use a 90 degree, pick tool, like a dentist uses on your teeth, and slide the red tab out as far as it goes. When you do that, it releases the green tab, allowing it to be pressed inward. When you press it in, it releases off of a little wedge of plastic on the sending unit that holds the green plug in place. When pressing it in, use a flat head screwdriver under the green plug, twist it slightly as you push in the tab, to slide the plug off of the sending unit.
      I just did this on my pt yesterday…it didn’t go so easy for me. When I slid the red tab over, it was brittle from the heat, and snapped off and fell on the ground. With that out of the way, I pressed on the tab on the green plug…it too snapped off and fell to the ground. So I used the dental pick tool, about 1/4″ from the base of the green plug, where the tab broke off, wiggled it under the part of the tab that holds it to the sending unit, twisted the screwdriver as stated above and the green plug popped right off. I hope this makes sense to you, if not right now, it will once you get under there and start the removal process. Good luck, and have patience with it…you’ll get it off.

  9. Michael Brooks says:

    Dose this also work on the 2007 touring addition as well.

  10. Michael Brooks says:

    Does this work as well on the 2007 PT Cruiser touring Edition

  11. Mister2 TIM (SupercharZed ToyZ RacZing) says:

    I just finished doing this job from the top. I unbolted and moved the fuse holder block out of the way. I was able to easily? get to the sensor and once oil was dabbed away I could see the red tab and grasp the finger latch. Going from the bottom just seemed way too difficult to reach.

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