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.