Detroit Diesel 60 Operator's Manual page 124

On-highway engine
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BASIC TROUBLESHOOTING
Abnormal Coolant Temperature Symptoms and Probable Causes
Probable Causes
Restricted cooling system passages
Restricted radiator core passages
Slipping fan drive belts
Faulty temperature-controlled fan
Obstruction in front of radiator or intercooler
Low coolant level
Damaged hoses
Faulty thermostats
Faulty water pump
Faulty radiator pressure cap
Air in coolant
Thermostats not fully closed
Leakage around thermostat seals
Faulty temperature-controlled fan
112
DDC-SVC-MAN-0039
All information subject to change without notice.
Copyright © 2009 DETROIT DIESEL CORPORATION
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