GM 19244501
Oil Pressure Sensor

The first task for servicing the oil pressure switch includes disconnecting the electrical connector which connects to the engine pressure sensor/switch. You need to use the Oil Pressure Sensor Socket (J 25254-10A) for removing the oil pressure switch. First step for installation is to mount the new oil pressure switch. The following installation steps will prevent fitting motion: apply a wrench while you secure the oil pressure switch at 30 Nm (22 ft. lbs.) using Oil Pressure Sensor Socket (J 25254-10A). Finally, reconnect the electrical connector.

Remove the electrical connector attached to the engine oil pressure gauge sensor and when holding the oil pressure sensor, make sure the gauge sits correctly before taking it off. Take out the engine oil pressure gauge sensor using (J 41712) and, if needed, also remove its fitting. Put sealant GM P/N 12346004 or its equal on the engine oil pressure sensor fitting, taking care not to lower the left side neck of the fitting after the initial torque has been applied. Insert and screw the oil pressure sensor fitting to a torque of 15 Nm (11 inch pounds); afterward, prevent the fitting from changing position much beyond 359°. Turn the engine oil pressure sensor fitting clockwise to the correct position which is 50° from the middle. Loosely thread the oil pressure gauge sensor until it is aligned with the sensor's fitting, keep the oil pressure gauge sensor fitting from turning with a wrench and tighten the sensor to 30 Nm (22 ft. lbs.) with (J 41712). Next, secure the electrical connector before starting the procedure.