Engine Fails to Reach Normal Operating Temperature
Engine Fails To Reach Normal Operating Temperature (LA3, LY9)Diagnostic Aids
The engine may fail to reach normal operating temperature due to an intermittent operation of one of the following components:
^ The coolant bypass valve
^ The thermostat
For electrical inspection of the coolant bypass solenoid, refer to Testing for Intermittent Conditions and Poor Connections in Wiring Systems.
