Remove the demand flow cooling signal line.

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

CAUTION  Wear safety goggles when using an air solvent gun to prevent possible eye injury.

Clean the inside of the signal line and the 7/16-20 UNF straight thread with an o-ring seal adapter with solvent and an air solvent gun.

Inspect the signal line for cracks or other damage.

Install the demand flow cooling signal line. Tighten the signal line fittings.

Make sure that the oil level in the oil pan is to the full mark.

Operate the engine until the water temperature reaches 82°C [180°F]. Check the oil pressure and check for oil leaks.