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S
T
E
TOPPING
HE
NGINE
After full load operation, idle the engine for a few minutes before shutting it down. This idle period will allow the lubricating oil and coolant to carry excess heat away from the
turbocharger.
NOTE:
Refer to the following chart for proper engine shutdown.
Driving Condition
Stop and Go
Stop and Go
Highway Speeds
City Traffic
Highway Speeds
Uphill Grade
NOTE:
Under certain conditions the Stop/Start system may be
temporarily disabled and the engine fan will run after the
engine is turned off to protect the engine. These condi-
tions are under high load and high temperature condi-
tions.
Load
Empty
Medium
Medium
Maximum GCWR
Maximum GCWR
Maximum GCWR
C
S
T
— A
OOLING
YSTEM
IPS
T
RANSMISSION
To reduce the potential for engine and transmission
overheating in high ambient temperature conditions, take
the following actions:
City Driving — When stopped, shift the transmission
into NEUTRAL (N) and increase engine idle speed.
Highway Driving — Reduce your speed.
Turbocharger Temperature
Idle Time (min.) Before Engine Shutdown
Cool
Warm
Hot
Up Steep Hills — Select a lower transmission gear.
UTOMATIC
Air Conditioning — Turn it off temporarily.
NOTE:
If the coolant temperature is too high, the A/C will auto-
matically turn off.
STARTING AND OPERATING
139
None
0.5
1.0
1.5
2.0
2.5
4
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