engine

Oil Pressure Sensor

for 2021 Toyota RAV4 2.5L I4 · AWD

Difficulty

Easy

Time

30 min

Tools

Steps

This procedure covers the removal and replacement of the oil pressure sensor on the 2019-2024 Toyota RAV4 with the 2.5L I4 gasoline engine.

Warnings

⚠Perform this procedure with the engine cold to avoid burns from hot engine components and oil.

ℹ️A small amount of engine oil may drain from the sensor port when removed. Have rags or a small drain pan ready.

⚠Do not overtighten the oil pressure sensor as this may damage the threads in the engine block or crack the sensor body.

Tools required

19mm deep socketEssential

Socket wrench or ratchetEssential

Torque wrench (10-30 Nm range)Essential

Oil drain pan or rags

Wire brush or shop towels

Flashlight or work light

Parts

Oil pressure sensor × 1 — Use OEM Toyota specification
Thread sealant (non-hardening) × 1 — Toyota FIPG or equivalent

Preparation

Ensure the engine is completely cool to the touch
Park vehicle on level ground and engage parking brake
Disconnect the negative battery terminal to prevent any electrical shorts
Allow at least 30 minutes after engine shutdown for oil to drain back to the pan

Procedure

1
Locate the oil pressure sensor
Open the hood and locate the oil pressure sensor on the lower front side of the engine block, just above the oil filter housing. It is a cylindrical sensor with a single wire connector.
2
Disconnect the electrical connector
Press the tab on the electrical connector and pull it straight off the oil pressure sensor. Do not pull on the wiring harness itself.
3
Remove the oil pressure sensor
Using a 19mm deep socket and ratchet, carefully loosen and remove the oil pressure sensor by turning counterclockwise. Be prepared for a small amount of oil to drip from the port. Allow any residual oil to drain completely before proceeding.
4
Clean the sensor port
Inspect the sensor port threads in the engine block for debris or old sealant. Use a wire brush or clean shop towel to remove any contamination. Ensure the sealing surface is clean and free of damage.
5
Prepare the new sensor
Apply a small amount of non-hardening thread sealant to the threads of the new oil pressure sensor. Do not apply sealant to the first two threads to prevent sealant from entering the oil passages.
6
Install the new oil pressure sensor
Thread the new oil pressure sensor into the engine block by hand until it seats against the mounting surface. Ensure it threads in smoothly without cross-threading. Once hand-tight, use a torque wrench and 19mm socket to tighten to specification.
Torque spec
Oil Pressure Sensor20 Nm (15 lb-ft)
7
Reconnect the electrical connector
Push the electrical connector onto the oil pressure sensor until it clicks into place. Verify the connection is secure by gently tugging on the connector.
8
Reconnect the battery
Reconnect the negative battery terminal and tighten the terminal clamp securely.

Reassembly

Ensure all electrical connections are secure and properly routed
Wipe up any spilled oil from the engine block and surrounding components
Double-check that the sensor is torqued to specification

Verification

Start the engine and verify that the oil pressure warning light on the dashboard goes off within 2-3 seconds
Allow the engine to idle for 2-3 minutes and inspect the oil pressure sensor for any oil leaks around the threads
Use an OBD-II scanner to verify no oil pressure sensor fault codes are present
Check the oil level on the dipstick and top off if necessary with Toyota Genuine 0W-20 engine oil
Take a short test drive and confirm the oil pressure warning light does not illuminate during normal operation