Loading ...
Loading ...
Loading ...
STARTING AND OPERATING 133
NORMAL OPERATION — DIESEL ENGINE
Observe the following when the engine is operating:
All message center lights are off.
Malfunction Indicator Light (MIL) is off.
Engine oil pressure is above 10 psi (69 kPa) at idle.
Voltmeter operation:
The voltmeter may show a gauge fluctuation at various
engine temperatures. This cycling operation is caused by
the post-heat cycle of the intake manifold heater system.
The number of cycles and the length of the cycling
operation is controlled by the engine control module.
Post-heat operation can run for several minutes, and then
the electrical system and voltmeter needle will stabilize.
The cycling action will cause temporary dimming of the
headlamps, interior lamps, and also a noticeable
reduction in blower motor speed.
COLD WEATHER PRECAUTIONS
Operation in ambient temperature below 32°F (0°C) may
require special considerations. The following charts
suggest these options:
Fuel Operating Range
NOTE:
Use Ultra Low Sulfur Diesel (ULSD) Fuels
ONLY.
Fuel Operating Range Chart
*Number 1 Ultra Low Sulfur Diesel Fuel should only be
used where extended arctic conditions (0°F/-18°C) exist.
NOTE:
Use of Climatized Ultra Low Sulfur Diesel Fuel or
Number 1 Ultra Low Sulfur Diesel Fuel results in a
noticeable decrease in fuel economy.
Climatized Ultra Low Sulfur Diesel Fuel is a blend of
Number 2 Ultra Low Sulfur and Number 1 Ultra Low
Sulfur Diesel Fuels which reduces the temperature at
which wax crystals form in fuel.
The fuel grade should be clearly marked on the pump
at the fuel station.
The engine requires the use of Ultra Low Sulfur Diesel
Fuel. Use of incorrect fuel could result in engine and
exhaust system damage
Ú page 442.
If Climatized or Diesel Number 1 ULSD fuel is not avail-
able, and you are operating below (20°F/-6°C), in
sustained arctic conditions, Mopar® Premium Diesel
Fuel Treatment (or equivalent) is recommended to
avoid gelling (see Fuel Operating Range Chart).
Under some circumstances increased engine noise
may be audible in the seconds following a cold start.
This is most likely to occur when using fuel that isn't
blended for the ambient temperature present. This
may occur on an unseasonably cold day or when a
truck is fueled in a warmer climate and driven to a
colder climate. The noise can typically be prevented by
using Mopar® Premium Diesel Fuel Treatment as
recommended (see Fuel Operating Range Chart).
Do not leave the key fob in or near the vehicle, or in
a location accessible to children, and do not leave
the ignition of a vehicle equipped with Keyless
Enter ’n Go™ in the ACC or ON/RUN position. A child
could operate power windows, other controls, or
move the vehicle.
WARNING!
4
23_DJD2_OM_EN_USC_t.book Page 133
Loading ...
Loading ...
Loading ...