ISM, ISMe, and QSM11 – 007-041   Lubricating Oil Viscosity Sensor

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, prolonged contact with used engine oil. If not reused, dispose of in accordance with local environmental regulations.

• Drain the lubricating oil. Refer to Procedure 007-037 in Section 7.
• Remove the oil pan. Refer to Procedure 007-025 in Section 7.
• Remove the main oil pressure regulator. Refer to Procedure 007-029 in Section 7.

Remove the viscosity sensor with a 7/16-inch socket, an extension, and ratchet.

WARNING  When using solvents, acids, or alkaline materials for cleaning, follow manufacturer’s recommendations for use. Wear goggles and protective clothing to reduce the possibility of personal injury.

WARNING  Wear appropriate eye and face protection when using compressed air. Flying debris and dirt can cause personal injury.

If the viscosity sensor is plugged or contains debris, it must be cleaned.

Use solvent and compressed air to remove the debris. If the viscosity sensor can not be cleaned of all debris, it must be replaced.

Install the viscosity sensor into the cylinder block.

CAUTION  Engine oil pressure must be indicated on the gauge within 15 seconds after starting. If oil pressure is not registered within 15 seconds, shut off the engine immediately to avoid engine damage. Confirm the correct oil level in the oil pan.

• Install the main oil pressure regulator. Refer to Procedure 007-029 in Section 7.
• Install the oil pan. Refer to Procedure 007-025 in Section 7.
• Fill the engine with clean 15W-40 oil. Refer to Procedure 007-037 in Section 7.
• Operate the engine at idle speed for 3 minutes to inspect for leaks.