SERIES 40 ENGINE OPERATOR'S GUIDE
Probable Causes
Rough
Running or
Frequent
Stalling
Low Power
Detonation
Misfiring cylinder
X
X
Insufficient fuel
X
X
High return fuel temperature
X
X
Low compression
X
X
Electronic control system
malfunction
X
X
High air inlet restriction/ex-
haust back pressure
X
Engine application
X
High air inlet temperature
X
High altitude operation
X
Incorrect engine gear train
timing
X
Low coolant temperature
X
Oil picked up by inlet airstream
X
Faulty injector operation
X
Incorrect injector height
setting
X
X
Table 32 Abnormal Engine Operation Symptoms and Probable
Causes
All information subject to change without notice.
(Rev. May 2004)
113
DDC-SVC-MAN-0057 0305
Copyright © 2003 DETROIT DIESEL CORPORATION