User Manual

BASIC TROUBLESHOOTING
Abnormal Engine Operation Symptoms and Probable Causes
Probable Causes
Rough
Running or
Frequent
Stalling
Low Power Detonation
Misfiring cylinder
XX
Insufficient fue l X X
High return fuel
temperature
XX
Low compression
XX
DDEC malfunction X X
High air inlet
restriction/exhaust back
pressure
X
Engine application
X
High air inlet temperature
X
High altitude operation
X
Incorrect en gine gear train
timing
X
Low coolant temperature
X
Oilpickedupbyinlet
airstream
X
Faulty injector operation
X
Incorrect injector height
setting
XX
118 All information subject to change without notice. (Rev. 01/04)
DDC-SVC-MAN-0058 Copyright © 2004 DETROIT DIESEL CORPORATION