Improper Engine Coolant Level
To determine if improper engine coolant level is causing high engine coolant temperature, perform the following:
- Visually inspect the radiator coolant level; refer to OEM guidelines.
- If the radiator coolant level is within 2.0 in. (approximately 0.50 mm) of the radiator filler neck, check insufficient radiator air circulation; refer to "27.2 Insufficient Radiator Air Circulation" .
- If the radiator coolant level is not within 2.0 in. of the radiator filler neck, refer to "27.1.1 Improper Coolant Level Resolution" .
Improper Coolant Level Resolution
Perform the following steps to resolve improper coolant level:
- Fill coolant system to correct level; refer to "13.5.4 Cooling System" .
- Verify coolant level resolution; refer to "126.96.36.199 Test Engine with Proper Coolant Level" .
Test Engine with Proper Coolant Level
Perform the following to determine if proper coolant level resolved high engine coolant temperature:
- Start and run the engine.
- Run the engine through its operating range with no-load for approximately 5 minutes, allowing the engine coolant to reach normal operating range.
- If the engine coolant temperature is 88-96°C (190-210°F), no further troubleshooting is required.
- If the engine coolant temperature is not 88-96°C (190-210°F), check for insufficient radiator air circulation; refer to "27.2 Insufficient Radiator Air Circulation" .
|Series 50 Service Manual - 6SE50|
|Generated on 10-13-2008|