Engine Overheating

Engine Overheating

Diagnostic Aids

The engine may overheat due to an intermittent operation of one of the following components:

* The after boil heater pump
* The coolant bypass solenoid
* The coolant bypass valve
* The electric cooling fans
* The thermostat

For electrical inspection of the cooling fans and the after boil heater pump, refer to Testing for Intermittent Conditions and Poor Connections (Testing for Intermittent Conditions and Poor Connections).