Engine Oil Pressure Sensor or Switch Replacement 4.8L, 5.3L, 6.0L

Tools Required

J 41712 Oil Pressure Sensor Socket

1. Remove the engine sight shield. Refer to Upper Intake Manifold Sight Shield Replacement .

Important: Clean the area around the sensor before removal. Do not allow debris to enter the engine.

2. Disconnect the oil pressure sensor electrical connector.



3. Remove the oil pressure sensor using the J 41712 or equivalent.

1. Apply sealant GM P/N 12346004 or equivalent to the threads of the oil pressure sensor.

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

2. Use the J 41712 or equivalent in order to install the oil pressure sensor.

Tighten
Tighten the oil pressure sensor to 20 N·m (15 lb ft).

3. Connect the oil pressure sensor electrical connector.
4. Install the engine sight shield. Refer to Upper Intake Manifold Sight Shield Replacement .
5. Check and adjust engine oil level.

Engine Oil Pressure Sensor or Switch Replacement 4.3L

Tools Required

J 41712 Oil Pressure Switch Socket

Important: Clean the area around the sensor and Distributor before removal. Do not allow debris to enter the engine.

1. Remove the distributor. Refer to Distributor Replacement in Engine Electrical.



2. Disconnect the engine oil pressure sensor electrical connector.
3. Remove the engine oil pressure sensor using the J 41712 .




Important: Note the alignment of the engine oil pressure sensor fitting prior to removal.

4. Remove the engine oil pressure sensor fitting, if necessary.

1. Apply sealant GM P/N 12346004 or equivalent to the threads of the fitting and/or the engine oil pressure sensor.

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

2. Install the engine oil pressure sensor fitting, if removed.

Tighten
Tighten the engine oil pressure sensor fitting to 15 N·m (11 lb ft).




3. Install the engine oil pressure sensor.

Tighten
Using the J 41712 , tighten the engine oil pressure sensor to 30 N·m (22 lb ft).

4. Connect the engine oil pressure sensor electrical connector.
5. Install the distributor. Refer to Distributor Replacement in Engine Electrical.
6. Check and adjust engine oil level.

Engine Oil Pressure Sensor or Switch Replacement 6.6L

Tools Required

J 41712 Oil Pressure Switch Socket

1. Raise and suitable support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.

Important: Clean the area around the sensor. Do not allow debris to enter the engine.




2. Disconnect the engine oil pressure sensor electrical connector.
3. Remove the engine oil pressure sensor using the J 41712 .

1. Apply sealant GM P/N 12346004 or equivalent to the threads of the engine oil pressure sensor.

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

2. Install the engine oil pressure sensor.

Tighten
Using the J 41712 tighten the engine oil pressure sensor to 30 N·m (22 lb ft).

3. Connect the engine oil pressure sensor electrical connector.
4. Lower the vehicle.
5. Check and adjust engine oil level.

Engine Oil Pressure Sensor or Switch Replacement 8.8L

Tools Required

J 41712 Oil Pressure Sensor Socket

1. Remove the engine sight shield. Refer to Upper Intake Manifold Sight Shield Replacement .

Important: Clean the area around the sensor before removal. Do not allow debris to enter the engine.

2. Disconnect the oil pressure sensor electrical connector.



3. Remove the oil pressure sensor using the J 41712 or equivalent.

1. Apply sealant GM P/N 12346004 or equivalent to the threads of the oil pressure sensor.

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

2. Use the J 41712 or equivalent in order to install the oil pressure sensor.

Tighten
Tighten the oil pressure sensor to 20 N·m (15 lb ft).

3. Connect the oil pressure sensor electrical connector.
4. Install the engine sight shield. Refer to Upper Intake Manifold Sight Shield Replacement .
5. Check and adjust engine oil level.