For front gear train engines, install the exhaust pressure sensor into the water outlet connection. Refer to Procedure 019-376 in Section 19 of the CM2150…

If the thermostat is suspected to be malfunctioning, the opening temperature of the thermostat should be measured to determine if the thermostat is functioning correctly.…

Clean the mating surfaces with an abrasive pad, Part Number 3823258 or equivalent, and a clean cloth. For front gear train engines, if the exhaust…

NOTE: Removing the exhaust pressure sensor is only necessary if replacing the sensor or if extensive cleaning of the water outlet connection is required. For…

Remove the water outlet connection capscrews. Remove the water outlet connection. Remove the thermostat.  

If the thermostat is suspected to be leaking, the following steps can be performed to check for leakage. The following check must be performed with…

The thermostat controls the engine coolant temperature. When the coolant temperature is below the operating range, engine coolant is bypassed back to the inlet of…

For flange mounted coolant heaters, lubricate the new heater o-ring with clean 15W-40 engine oil. Install the coolant heater and retaining capscrews. Tighten the capscrews.…

Clean the coolant heater port thoroughly with a clean rag. Make sure there are no burrs, metal shavings, or sharp edges that can cut the…

Depending on the type of cylinder block, there are two types of coolant heaters used: • A flange mounted coolant heater, located at the rear…