2008 DODGE RAM 2500 DIESEL fuel

INTRODUCTION
This Owner's Manual has been prepared with the assis-
tance of service and engineering specialists to acquaint
you with the operation and maintenance of your vehicle.
It is supplemented by a Warranty Information Booklet
and various customer-oriented documents. You are
urged to read these publications carefully. Following the
instructions and recommendations in this manual will
help assure safe and enjoyable operation of your vehicle.
NOTE: After you read the manual, it should be stored
in the vehicle for convenient reference and remain with
the vehicle when sold, so that the new owner will be
aware of all safety warnings.
When it comes to service, remember that your authorized
dealer knows your vehicle best, has the factory-trained
technicians and genuine Mopartparts, and is interested
in your satisfaction.
A MESSAGE FROM DAIMLERCHRYSLER
CORPORATION
DaimlerChrysler Corporation and Cumminstwelcome
you as a CumminstTurbo Diesel-powered truck owner.
Almost 100% of the heavy duty trucks in the United
States and Canada are diesel powered because of the fuel
economy, rugged durability, and high torque which per-
mits pulling heavy loads. Cumminst, engines power
well over half of these trucks. Now this same technology
and proven performance is yours in your truck equipped
with the Cumminst, turbocharged, charge air cooled,
diesel engine.
Your diesel truck will sound, feel, drive, and operate
differently from a gasoline-powered truck. It is important
that you read and understand this manual. You may find
that some of the starting, operating, and maintenance
procedures are different. However, they are simple to
4 INTRODUCTION

²Make sure that the child is upright in the seat.
²The lap portion should be low on the hips and as snug
as possible.
²Check belt fit periodically. A child's squirming or
slouching can move the belt out of position.
If the shoulder belt contacts the face or neck, move the
child closer to the center of the vehicle. Never allow a
child to put the shoulder belt under an arm or behind
their back.
Transporting Pets
Airbags deploying in the front seat could harm your pet.
An unrestrained pet will be thrown about and possibly
injured, or injure a passenger during panic braking or in
a collision. Pets should be restrained in the rear seat in
pet harnesses or pet carriers that are secured by seat belts.
NEW ENGINE BREAK-IN
Your Cumminst24-Valve Turbo Diesel engine does not
require a break-in period due to its construction. Normal
operation is allowed, provided the following recommen-
dations are followed:
NOTE:Light duty operation such as light trailer towing
or no load operation will extend the time before the
engine is at full efficiency. Reduced fuel economy and
power may be seen at this time.
²Warm up the engine before placing it under load.
²Do not operate the engine at idle for prolonged
periods.
²Use the appropriate transmission gear to prevent
engine lugging.
²Observe vehicle oil pressure and temperature indica-
tors.
74 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

Safety Checks You Should Make Outside The
Vehicle
Tires
Examine tires for tread wear or uneven wear patterns.
Check for stones, nails, glass or other objects lodged in
the tread.
Inspect for tread cuts or sidewall cracks. Check wheel
nuts for tightness and tires for proper pressure.
Lights
Check the operation of all exterior lights. Check turn
signal and high beam indicator lights on the instrument
panel.
Door Latches
Check for positive closing, latching and locking.
Fluid Leaks
Check area under the vehicle after overnight parking for
fuel, water, oil, or other fluid leaks. Also, if fuel fumes are
detected, the cause should be located and corrected.
78 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

Trip Functions
Pressing the STEP button allows you to scroll through
one of the following Trip Function features:
²TRIP ± Shows the total distance traveled since the last
reset. To reset the TRIP function, press and hold the
RESET button.
²ELAPSED TIME ± Shows the total elapsed time of
travel since the last reset. Elapsed time will increment
when the ignition switch is in the ON/RUN or START
positions.
²UNIT IN US/METRIC ± Press the RESET button to
toggle between US and METRIC.
²AVG. MPG ± Shows the average fuel economy since
the last reset. When the fuel economy is reset, the
display will show dashes for two seconds. Then the
history information will be erased, and the averaging
will continue from the last fuel average reading beforethe reset. (Example: If your EVIC displays 18 AVG.
MPG and the RESET button is pressed, the previous
averaging history will be erased and the display will
return to the 18 AVG. MPG, not to 0 AVG. MPG.) The
display may take several miles/kilometers for the
value to change, dependent upon driving habits.
²MI TO EMPTY (Distance to Empty) ± Shows the
estimated distance that can be traveled with the fuel
remaining in the tank. This estimated distance is
determined by a weighted average of fuel economy,
according to the current fuel tank level. MI TO EMPTY
cannot be reset through the RESET button.
NOTE:Significant changes in driving style or vehicle
loading will greatly affect the actual drivable distance of
the vehicle, regardless of the DTE displayed value.
²When the DTE value is less than 30 mi (48 km)
estimated driving distance, the DTE display will
change to a text display of9LOW FUEL.9This display
144 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

will continue until the vehicle runs out of fuel. Adding
a significant amount of fuel to the vehicle will turn off
the9LOW FUEL9text and a new DTE value will
display.
System Status (EVIC Displays)
When the appropriate conditions exist, the Electronic
Vehicle Information Center (EVIC) displays the following
messages:
²TURN SIGNALS ON (with a continuous warning
chime)
²PERSONAL SETTINGS NOT AVAILABLE ± Vehicle
Not in Park or Vehicle in Motion (manual transmis-
sions only)
²LEFT/RIGHT FRONT DOOR AJAR (one or more,
with a single chime if speed is above 1 mph (1.6 km/h)
²LEFT/RIGHT REAR DOOR AJAR (one or more, with
a single chime if speed is above 1 mph (1.6 km/h)
²DOOR(S) AJAR (with a single chime if vehicle is in
motion)
²LOW WASHER FLUID (with a single chime)
²OIL CHANGE REQUIRED (with a single chime)
²CATALYST FULL SEE OWNER MANUAL
²CATALYST STAT lllllll 90%
²CATALYST FULL SERVICE REQUIRED
²SERVICE AIR FILTER
²PERFORM SERVICE
OIL CHANGE REQUIRED Ð If Equipped
Your vehicle is equipped with an engine oil change
indicator system. The ªOil Change Requiredº message
will flash in the EVIC display for approximately 10
seconds after a single chime has sounded to indicate the
next scheduled oil change interval. The engine oil change
UNDERSTANDING THE FEATURES OF YOUR VEHICLE 145
3

INSTRUMENT CLUSTER DESCRIPTION
1. Check Gauges
This light illuminates when the Voltmeter, Engine
Oil Pressure or Engine Coolant Temperature
gauges indicate a reading either too high or too low.
Examine the gauges carefully, and follow the instructions
contained below for each indicated problem.
NOTE:When the ignition switch is turned to OFF, the
Fuel Gauge, Voltmeter, Oil Pressure and Engine Coolant
Temperature gauges may not show accurate readings.
When the engine is not running, turn the ignition switch
to ON to obtain accurate readings.
2. Voltmeter
When the engine is running, the gauge indicates
the electrical system voltage. The pointer should
stay within the normal range if the battery is charged. Ifthe pointer moves to either extreme left or right and
remains there during normal driving, the electrical sys-
tem should be serviced.
NOTE:If the gauge pointer moves to either extreme of
the gauge, the ªCheck Gaugesº indicator will illuminate
and a single chime will sound.
NOTE:
²The voltmeter may show a gauge fluctuation at vari-
ous 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 sev-
eral minutes, and then the electrical system and volt-
meter needle will stabilize.
²The cycling action will cause temporary dimming of
the headlights, interior lights, and also a noticeable
reduction in blower motor speed.
UNDERSTANDING YOUR INSTRUMENT PANEL 189
4

17. Malfunction Indicator Light (MIL)
This light is part of an onboard diagnostic system
which monitors the emissions and engine control
system. If the vehicle is ready for emissions
testing the light will come on when the ignition is first
turned on and remain on, as a bulb check, until the
engine is started. If the vehicle is not ready for emissions
testing the light will come on when the ignition is first
turned on and remain on for 15 seconds, then blink for
five seconds, and remain on until the vehicle is started. If
the bulb does not come on during starting, have the
condition investigated promptly.
If this light comes on and remains on while driving, it
suggests a potential engine control problem and the need
for system service.
Although your vehicle will usually be drivable and not
need towing, see your authorized dealer for service as
soon as possible.CAUTION!
Prolonged driving with the MIL on could cause
damage to the engine control system. It also could
affect fuel economy and drivability.
If the MIL is flashing, severe catalytic converter
damage and power loss will soon occur. Immediate
service is required.
18. Brake System Warning Light
This light illuminates when the ignition key is turned to
the ON position and remains on for a few seconds. If the
light stays on longer, it may be an indication that the
parking brake has not been released. This light will
illuminate if the brake fluid is low, especially when
braking or accelerating hard. This light will illuminate if
the ABS indicator light has a malfunction. This light will
flash if the engine is running and the parking brake is on.
194 UNDERSTANDING YOUR INSTRUMENT PANEL

experience reduced performance, an elevated/rough idle
or engine stall and your vehicle may require towing. The
light will come on when the ignition is first turned on
and remain on for 15 seconds as a bulb check. If the light
does not come on during starting, have the system
checked by an authorized dealer.
22. SERV 4WD Indicator
The 4WD indicator will be illuminated whenever the
4WD mode is engaged for either the manual or electric
shift 4WD systems. The SERV 4WD indicator monitors
the electric shift 4WD system. If the SERV 4WD light
stays on or comes on during driving, it means that the
4WD system is not functioning properly and that service
is required.23. Water In Fuel Indicator
Indicates there is water detected in the fuel
filter. Refer to the Maintenance section, Drain-
ing Fuel/Water Separator Filter, for water
drain procedure.
24. Tire Pressure Monitoring Telltale Light Ð If
Equipped
Each tire, including the spare (if provided),
should be checked monthly when cold and
inflated to the inflation pressure recommended
by the vehicle manufacturer on the vehicle
placard or tire inflation pressure label. (If your vehicle
has tires of a different size than the size indicated on the
vehicle placard or tire inflation pressure label, you should
determine the proper tire inflation pressure for those
tires.)
196 UNDERSTANDING YOUR INSTRUMENT PANEL