Series 60 DDEC V Troubleshooting – Section 13.1 Improper Engine Coolant Level

Section 13.1
Improper Engine Coolant Level

To determine if improper engine coolant level is causing high engine coolant temperature, perform the following:‪

1. Visually inspect the radiator coolant level; refer to OEM guidelines.
2. Examine the results.
   1. If the radiator coolant level is within 2.0 in. (approximately 50 mm) of the radiator filler neck, check insufficient radiator air circulation; refer to "13.2 Insufficient Radiator Air Circulation" .
   2. If the radiator coolant level is not within 2 in. (approximately 50 mm) of the radiator filler neck, refer to "13.1.1 Improper Coolant Level Resolution" .

Section 13.1.1
Improper Coolant Level Resolution

Perform the following steps to resolve improper coolant level:‪

1. Fill coolant system to correct level; refer to appropriate service manual, preventive mantenance chapter.
2. Verify coolant level resolution; refer to "13.1.1.1 Test Engine with Proper Coolant Level" .

Section 13.1.1.1
Test Engine with Proper Coolant Level

Perform the following to determine if proper coolant level resolved high engine coolant temperature: ‪

1. Start and run the engine.
2. Run the engine through its operating range with no-load for approximately 5 minutes, allowing the engine coolant to reach normal operating range.
   1. If the engine coolant temperature is 88-96°C (190-210°F), no further troubleshooting is required. Shut down the engine.
   2. If the engine coolant temperature is not 88-96°C (190-210°F), shut down the engine. Check for insufficient radiator air circulation; refer to "13.2 Insufficient Radiator Air Circulation" .