Starting and Stopping Procedures
83
BOOSTER BLOCK LOCATION 06623
ENGINE BLOCK HEATER
The vehicle may be equipped with an engine
immersion-type electric block heater to assist
cold weather starting. A connector is on the rear
pillar of the curb-side engine compartment door
frame. Using an extension cord, connect to a
110 - 120 VAC outlet.
110-120 VOLTS CONNECTOR 06390
CAUTION
Connect only to a 110-120 VAC power source.
Use only grounded (three prongs) extension
cords with a minimum rated capacity of 15
amps. Disconnect the extension cord before
starting. Before driving, make sure the
extension cord is disconnected and the engine
compartment door is closed.
ENGINE WARM-UP
After starting the engine, keep the parking brake
applied and let the engine run at normal idle for
two minutes to allow lubricating oil to reach the
turbocharger. Increase engine speed to fast
idle, using the FAST IDLE switch located on the
dashboard for five minutes, without loading the
engine. Monitor the gauges and indicator lights
to make sure all conditions are normal. If an
abnormal condition is observed, stop the engine
immediately and have the condition corrected.
WARNING
Never let the engine run in an enclosed, non-
ventilated area. Engine exhaust fumes
contain dangerous gases which can be fatal if
inhaled. Before warming up the engine, open
the door(s) or move the vehicle outside.
NOTE
The engine will reach normal operating
temperature shortly after driving. Avoid driving
at full throttle until engine coolant temperature
reaches 140°F (60°C).
ALLISON TRANSMISSION WARM-UP
When the transmission temperature falls below
-20°F (-29°C), the CHECK TRANS telltale light
illuminates after the engine is started, and a
reminder tone will sound. In this case, the
transmission will be locked in neutral (N) until
the transmission temperature rises above -20°F
(-29°C) and the CHECK TRANS telltale light
goes out. The transmission will only operate in
first or reverse gears until it reaches normal
operating temperature.
ZF-ASTRONIC TRANSMISSION -
STARTING THE VEHICLE AT LOW
TEMPERATURES
For outside temperatures between –20°C and
–30°C, the transmission will require a warming
up phase once the engine is started. The engine
must be operated for at least 10 minutes with
the vehicle at a standstill until the transmission
oil has warmed up.
For outside temperatures below –30°C, warm
air must be used to heat the transmission up to
a temperature above –30°C before the engine is
started.
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