Checking the Turbocharger
Check the turbocharger as follows:
1. Make a visual inspection of the turbocharger for oil leaks, exhaust leaks,
excessive noise, or vibration.
2. If a leak, unusual noise, or vibration is noted, stop the engine immediately. Do
not restart the engine until the cause of the concern has been investigated and
corrected. Authorized Detroit™ service outlets are properly equipped for this
type of service.
Monitoring the Engine Speed
During operation of the vehicle, the operator should limit the engine speed to 1900
rpm or less. No extra engine power is achieved at engine speeds above 1900 rpm.
Shifting gears without pressing the clutch, or using the engine brakes to reduce
engine speed, may result in serious powertrain damage due to higher engine speeds.
Never exceed 2000 rpm; higher engine speeds may result in extensive engine
damage.
NOTICE:
Any engine overspeed (engine speed exceeds 2500 rpm) while
the vehicle is moving (vehicle speed over 0 MPH) is considered to be an
operator-induced engine overspeed. Any mechanical engine failure within
2000 miles (3218 km) of an operator-induced engine overspeed event will
not be eligible for warranty coverage.
Shutting Down the Engine
Immediately shutting down the engine should be avoided. Shutting the engine off
immediately retains more cylinder block heat than if the engine runs at idle for five
minutes. If any of the following conditions occur, shut down the engine
immediately:
• The oil pressure swings back and forth or falls sharply.
• Engine power and rpm fall, even though the accelerator pedal remains steady.
• The exhaust pipe gives off heavy smoke.
• The coolant and/or oil temperature climb abnormally.
• Abnormal sounds suddenly occur in the engine or turbocharger.
Contact an authorized Detroit™ service outlet if any of the above conditions is
present.
Stop an engine under normal operating conditions as follows:
1. Reduce engine speed to idle and place the transmission in neutral.
2. Allow the engine to run between idle and 1000 rpm with no load for five
minutes. This allows the engine to cool and permits the turbocharger to slow
down. After five minutes, shut down the engine.
Engine Operation
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All information subject to change without notice.
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