ISM, ISMe, and QSM11 – 007-038   Lubricating Oil Temperature Gauge

The combination oil pressure and oil temperature sensor is located on the cylinder block directly above the accessory drive.

Check the following for defects.

• Electrical wiring broken
• Sending unit malfunction.

WARNING  To reduce the possibility of personal injury, avoid direct contact of hot oil with your skin.

WARNING  Some state and federal agencies have determined that used engine oil can be carcinogenic and cause reproductive toxicity. Avoid inhalation of vapors, ingestion, and prolonged contact with used engine oil. If not reused, dispose of in accordance with local environmental regulations.

To check for a sending unit malfunction:

• Use a master gauge of known accuracy to verify the reading of the suspect gauge.
• Drain the oil pan. Refer to Procedure 007-037 in Section 7.
• Remove the pipe plug on the side of the oil pan, and install the master oil temperature gauge sending unit.
• Fill the oil pan with 15W-40 oil. Refer to Procedure 007-037 in Section 7.
• Replace the sending unit if it is defective.