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Table 12.
Abnormal Engine Operation Symptoms and Probable Causes
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
—
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 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
Abnormal Operating Conditions
This section explains Abnormal Operating Condition Symptoms and Probable
Causes
Table 13.
Abnormal Operating Condition Symptoms and Probable Causes
Probable Causes
High Lubrication Oil
Consumption
Low Oil Pressure
Loose connections
X
—
Cracked lines
X
—
Damaged gaskets or seal rings
X
—
* Lubrication oil loss at breather tube
X
—
* Lubrication oil loss at dipstick tube
X
—
Leaking oil cooler
X
—
Leaking valve stem seals
X
—
DD Platform EuroIV Operators Manual
All information subject to change without notice.
105
DDC-SVC-MAN-0175
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