Intervention Regeneration Strategy — Message
Process Flow
The Cummins diesel engine meets all EPA Heavy Duty
Diesel Engine Emissions Standards, resulting in one of the
lowest emitting diesel engines ever produced.
To achieve these emissions standards, your vehicle is
equipped with a state-of-the-art engine and exhaust sys-
tem. The engine and exhaust after-treatment system work
together to achieve the EPA Heavy Duty Diesel Engine
Emissions Standards. These systems are seamlessly inte-
grated into your vehicle and managed by the Cummins
Powertrain Control Module (PCM). The PCM manages
engine combustion to allow the exhaust system’s catalyst
to trap and burn Particulate Matter (PM) pollutants, with
no input or interaction on your part.
If the engine is allowed to idle or the truck is driven on low
engine speed drive cycles for more than 2 hours, the
system will automatically enter an emissions operating
mode that will increase the engine idle speed to 900 RPM
(1050 RPM for Chassis Cab). While in this mode, which is
designed to help maintain the diesel particulate filter, the
engine idle speed will return to normal when the brake
pedal is applied. A small change in engine tone or a slight
change in engine performance while accelerating may also
be noticeable at speeds below 20 mph (32 kmh). This
operating mode may last for up to an hour of idle time, or
around 20 minutes of driving time.
Additionally, your vehicle has the ability to alert you to
additional maintenance required on your truck or engine.
Refer to “Instrument Cluster Display” in “Getting To Know
Your Instrument Panel” for further information.
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 sys-
tem. 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 compo-
nent of selective catalytic reduction (SCR) systems, which
help diesel vehicles meet stringent emission regulations.
DEF is a liquid reducing agent that reacts with engine
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SERVICING AND MAINTENANCE
Summary of Contents for RAM 2500 2019
Page 4: ......
Page 5: ...INTRODUCTION CONTENTS 䡵 A MESSAGE FROM FCA US LLC 4 1 ...
Page 12: ...INSTRUMENT CLUSTER Base Instrument Cluster 10 GETTING TO KNOW YOUR INSTRUMENT PANEL ...
Page 15: ...Premium Instrument Cluster 3 GETTING TO KNOW YOUR INSTRUMENT PANEL 13 ...
Page 130: ......
Page 141: ...INDEX 8 ...
Page 146: ......