RAM 2500 2023, Руководство пользователя

Страница: 134 / 468

132 STARTING AND OPERATING
(Continued)
S
TARTING
P
ROCEDURE
— E
NGINE
M
ANIFOLD
A
IR
T
EMPERATURE
B
ELOW
0°F (-18°C)
In extremely cold weather below 0°F (-18°C) it may be
beneficial to cycle the intake air heater twice before
attempting to start the engine. This can be accomplished
by turning the ignition off for at least 5 seconds and then
back to the ON/RUN position after the Wait To Start
Indicator Light has turned off, but before the engine is
started. However, excessive cycling of the intake air
heater will result in damage to the heater elements or
reduced battery voltage.
NOTE:
If multiple pre-heat cycles are used before starting, addi -
tional engine run time may be required to maintain battery
state of charge at a satisfactory level.
1. If the engine stalls after the initial start, the ignition
must be turned to the OFF position for at least five
seconds and then to the ON/RUN position to recycle
the intake air heater.
NOTE:
Excessive white smoke and poor engine performance will
result if intake air heater is not recycled.
2. Heat generated by the intake air heater dissipates
rapidly in a cold engine. If more than two minutes
pass between the time the Wait To Start Indicator
Light turns off and the engine is started, recycle the
intake air heater by turning the ignition switch to the
OFF position for at least five seconds and then back
to the ON/RUN position.
3. If the vehicle is driven and vehicle speed exceeds
19 mph (31 km/h) before the intake air heater
post-heat (after start) cycle is complete, the intake air
heater will shut off.
4. If the engine is cranked for more than 10 seconds,
the post-heat cycle will turn off.
NOTE:
 Engine idle speed will automatically increase to
1,000 RPM and engage the Variable Geometry
Turbocharger at low coolant temperatures to improve
engine warm-up.

When a diesel engine is allowed to run out of fuel or the
fuel gels at low temperatures, air is pulled into the fuel
system. If your engine has run out of fuel
Ú
page 390.
 If the engine stalls, or if the ignition switch is left ON for
more than two minutes after the Wait To Start Indicator
Light goes out, reset the intake air heater by turning the
ignition switch to the OFF position for at least five
seconds and then back ON. Repeat steps 1 through 5
of “Starting Procedure – Engine Manifold Air Tempera -
ture 0°F to 66°F (-18°C to 19°C)”
Ú
page 130.
S
TARTING
F
LUIDS
The engine is equipped with an automatic electric air
preheating system. If the instructions in this manual are
followed, the engine should start in all conditions.
WARNING!
Starting fluids or flammable liquids must never be used
in the Cummins® diesel engine (see Warning label).
Never pour diesel fuel, flammable liquid, starting fluids
(ether) into the air cleaner canister, air intake piping, or
turbocharger inlet in an attempt to start the vehicle.
This could result in a flash fire and explosion causing
serious personal injury and engine damage.
WARNING!
 Do not leave children or animals inside parked vehi -
cles in hot weather. Interior heat buildup may cause
serious injury or death.
 When leaving the vehicle, always make sure the
keyless ignition node is in the OFF position, remove
the key fob from the vehicle and lock the vehicle.
 Never leave children alone in a vehicle, or with
access to an unlocked vehicle. Allowing children to
be in a vehicle unattended is dangerous for a
number of reasons. A child or others could be seri -
ously or fatally injured. Children should be warned
not to touch the parking brake, brake pedal or the
gear selector.
23_DJD2_OM_EN_USC_t.book Page 132