Detroit Diesel Series 60 Operator's Manual page 127

Hard Starting Symptoms and Probable Causes
Probable Causes
Low Battery Voltage
Loose cranking motor
connections
Faulty cranking motor
Faulty cranking motor switch
Internal seizure
Improper lube oil
Circuit breaker/electronic control
malfunction
Fuse blown or missing
Insufficient Fuel Supply
Air in fuel
Out of fuel
Loose fuel connections
Cracked fuel lines
Obstructed fuel filters/lines
Faulty fuel pump
Faulty injector operation
Restricted fuel fitting missing
DDEC Malfunction
Installation/operation of fuel
check valve or shutoff valve
Low Compression
Worn intake and exhaust valves
Worn piston rings/liners
Leaking cylinder head gasket
Improper intake or exhaust valve
adjustments
All information subject to change without notice. (Rev. 01/04)
6SE484 0401 Copyright © 2004 DETROIT DIESEL CORPORATION
SERIES 60 ENGINE OPERATOR'S GUIDE
Low
Engine Will
Cranking
Not Rotate
Speed
X X
X
X X
X X
X
X
Engine
Cranks But
Will Not
Start
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
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