A Symptoms - Engine Cooling
Symptoms - Engine CoolingImportant: Review the system operation in order to familiarize yourself with the system functions.
Visual/Physical Inspection
Inspect for aftermarket devices which could affect the operation of the Cooling System.
Inspect the easily accessible or visible system components for obvious damage or conditions which could cause the symptom.
Inspect the surge tank reservoir for the proper coolant level.
Intermittent
Faulty electrical connections or wiring may be the cause of intermittent conditions.
Symptom List
Refer to a symptom diagnostic procedure from the following list in order to diagnose the symptom:
- Low Engine Coolant Indicator Always On
Low Engine Coolant Indicator Always On
- Cooling Fan Inoperative
Cooling Fan Inoperative - Primary
- Cooling Fan Inoperative - Auxiliary
Cooling Fan Inoperative
- Cooling Fan Always On
Cooling Fan - Primary
- Cooling Fan Always On - Auxiliary
Cooling Fan - Auxiliary
- Engine Overheating
Engine Overheating
- Loss of Coolant (M 82)
Automatic Transmission (RPO M82)
- Loss of Coolant (M 35)
Manual Transmission (RPO M35)
- Thermostat Diagnosis
Component Tests
- Engine Fails To Peach Normal Operating Temperature
Engine Fails to Reach Normal Operating Temperature
- Pressure Cap Testing
Testing and Inspection
- Cooling System Leak Testing
Non-Trouble Code Procedures