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NOTE:
•
In addition, commercially available fuel additives are
not necessary for the proper operation of your diesel
engine.
•
For extreme cold conditions, "Mopar® Premium Die-
sel Fuel Treatment" is recommended to assist with
cold starting.
INTERVENTION REGENERATION
STRATEGY — MESSAGE PROCESS
FLOW
This engine meets all required diesel engine emissions
standards. To achieve these emissions standards, your
vehicle is equipped with a state-of-the-art engine and
exhaust system. These systems are seamlessly inte-
grated into your vehicle and managed by the Powertrain
Control Module (PCM). The PCM manages engine com-
bustion to allow the exhaust system's catalyst to trap
and burn Particulate Matter (PM) pollutants, with no
input or interaction on your part.
Additionally, your vehicle has the ability to alert you to
additional maintenance required on your vehicle or
engine.
Refer to Instrument Cluster Display for further informa-
tion
page 105.
WARNING!
A hot exhaust system can start a fire if you park over
materials that can burn. Such materials might be
grass or leaves coming into contact with your exhaust
system. Do not park or operate your vehicle in areas
where your exhaust system can contact anything that
can burn.
DIESEL EXHAUST FLUID
Diesel Exhaust Fluid (DEF) sometimes known simply by
the name of its active component, UREA—is a key com-
ponent of Selective Catalytic Reduction (SCR) systems,
which help diesel vehicles meet stringent emission
regulations. DEF is a liquid reducing agent that reacts
with engine exhaust in the presence of a catalyst to
convert smog-forming Nitrogen Oxides (NOx) into harm-
less nitrogen and water vapor.
For further information
page 361.
ACCESSORY DRIVE BELT
INSPECTION
WARNING!
•
Do not attempt to inspect an accessory drive belt
with the vehicle running.
•
When working near the radiator cooling fan, dis-
connect the fan motor lead. The fan is temperature
controlled and can start at any time regardless of
ignition mode. You could be injured by the moving
fan blades.
•
You can be badly injured working on or around a
motor vehicle. Only do service work for which you
have the knowledge and the proper equipment. If
you have any doubt about your ability to perform a
service job, take your vehicle to a competent
mechanic.
When inspecting accessory drive belts, small cracks
that run across the ribbed surface of the belt, from rib
to rib, are considered normal. These are not a reason to
replace a belt. However, cracks running along a rib (not
SERVICING AND MAINTENANCE
across) are not normal. Any belt with cracks running
along a rib must be replaced. Also have the belt
replaced if it has excessive wear, frayed cords, or
severe glazing.
Accessory Belt (Serpentine Belt)
Conditions that would require replacement:
•
Rib chunking (one or more ribs has separated from
belt body)
•
Rib or belt wear
•
Longitudinal belt cracking (cracks between two ribs)
•
Belt slips
•
Groove jumping (belt does not maintain correct posi-
tion on pulley)
•
Belt broken
•
Noise (objectionable squeal, squeak, or rumble is
heard or felt while drive belt is in operation)
NOTE:
Identify and correct problem before new belt is
installed.
311
8
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