The Oil Temperature Sensor (OTS) is installed into the main engine oil gallery. A typical location is the left rear corner of the cylinder block. See Figure 20411 . The OTS sends an electrical signal to the ECM indicating engine oil temperature. The ECM uses this information to modify engine speed for better cold weather starts and faster warm-ups. Oil temperatures exceeding specification for two seconds or more will begin the stop engine or warning function.
Note: Series 50G automotive (high pressure fuel system) engines do not have an oil temperature sensor. All DDEC and OEM functions reference coolant temperature.
Engine Oil Pressure and Temperature Sensors
The OTS is non-serviceable, and is replaced as a unit. No adjustment is required.
Removal the OTS as follows:
Install the OTS as follows:
Note: The Oil Temperature Sensor is an electronic device. Use care in the installation process.