SR20DE Oil Pressure Switch
Oil began leaking somewhere from my engine, dripping down
onto the right inner CV-joint, splashing around the right side undercarriage
while driving, and dripping from various parts while parked. After putting the
car on ramps to get a good look, I saw oil coating the electrical connector on
the oil pressure sending unit - called an 'oil pressure switch' in Nissan-speak.
The solution was replacement.
Purchase the following part:
|Oil Pressure Switch
The following procedure takes less than an hour and can be
Tools and supplies: ramps or jackstands; 1/2"
ratchet; 1-1/6" deep-well socket; white Teflon plumbing tape; old rags.
- Put your car on ramps or jackstands (I used Tru-Cut
- Open the hood so you get some light from above.
- Slide under the car from the front. The oil pressure
switch is located on the engine block above the right inner CV-joint.
- Before proceeding, take the opportunity to inspect the
lower drivetrain and undercarriage, including all seals, boots, fasteners,
and things that can shake loose.
- Using old rags, clean all parts that have been splashed
- Disconnect the switch electrical harness.
- Remove the switch using the ratchet and socket. Pull
toward the rear of the car to untighten.
- Clean the area around the switch hole using an old rag.
- Wrap the threads of the new switch using Teflon
plumbing tape, but not too close to the end.
- Thread in the new switch by hand, then twist using the
ratchet until 'comfortably' tight.
- Connect the electrical harness.
- Slide back out from under the car and start the engine.
Verify that the oil pressure light turns off normally, and allow the engine
to run for a couple of minutes before shutting down.
- Slide back under the car to check for leaks.
- Close the hood, lower the car, and you're done!
Rick's SE-Rious Procedures
Original material is the creation of Rick
Zotz, 1999, 1998, 1997, and has been contributed to SE-R.net.