2009 DODGE RAM 2500 DIESEL check engine

WARNING!
•
The warning words “DO NOT OPEN HOT” on
the cooling system pressure cap are a safety pre-
caution. Never add engine coolant (antifreeze)
when the engine is overheated. Do not loosen or
remove the cap to cool an overheated engine. Heat
causes pressure to build up in the cooling system.
To prevent scalding or injury, do not remove the
pressure cap while the system is hot or under
pressure.
•
Do not use a pressure cap other than the one
specified for your vehicle. Personal injury or en-
gine damage may result.
Disposal of Used Engine CoolantUsed ethylene glycol-based engine coolant (antifreeze) is
a regulated substance requiring proper disposal. Check
with your local authorities to determine the disposalrules for your community. To prevent ingestion by ani-
mals or children do not store ethylene glycol-based
engine coolant (antifreeze) in open containers or allow it
to remain in puddles on the ground. If ingested by a
child, contact a physician immediately. Clean up any
ground spills immediately.
Coolant LevelThe coolant bottle provides a quick visual method for
determining that the engine coolant (antifreeze) level is
adequate. With the engine cold, the level of the engine
coolant (antifreeze) in the coolant recovery bottle should
be between the ranges indicated on the bottle.
The radiator normally remains completely full, so there is
no need to remove the radiator cap unless checking for
engine coolant (antifreeze) freeze point or replacing en-
gine coolant (antifreeze). Advise your service attendant
of this. As long as the engine operating temperature is
satisfactory, the coolant bottle only needs to be checked
once a month.
MAINTAINING YOUR VEHICLE 445
7

When additional engine coolant (antifreeze) is needed to
maintain the proper level, it should be added to the
coolant bottle. Do not overfill.Points To RememberNOTE:When the vehicle is stopped after a few miles (a
few kilometers) of operation, you may observe vapor
coming from the front of the engine compartment. This is
normally a result of moisture from rain, snow, or high
humidity accumulating on the radiator and being vapor-
ized when the thermostat opens, allowing hot engine
coolant (antifreeze) to enter the radiator.
If an examination of your engine compartment shows no
evidence of radiator or hose leaks, the vehicle may be
safely driven. The vapor will soon dissipate.•
Do not overfill the coolant recovery bottle.
•
Check the engine coolant (antifreeze) freeze point in
the radiator and in the coolant recovery bottle. If engine coolant (antifreeze) needs to be added, the
contents of the coolant recovery bottle must also be
protected against freezing.
•
If frequent engine coolant (antifreeze) additions are
required, or if the level in the coolant recovery bottle
does not drop when the engine cools, the cooling
system should be pressure tested for leaks.
•
Maintain engine coolant (antifreeze) concentration at
50% HOAT engine coolant (antifreeze) (minimum)
and distilled water for proper corrosion protection of
your engine, which contains aluminum components.
•
Make sure that the radiator and coolant recovery
bottle overflow hoses are not kinked or obstructed.
•
Keep the front of the radiator clean. If your vehicle is
equipped with air conditioning, keep the front of the
condenser clean.
446 MAINTAINING YOUR VEHICLE

•
Do not change the thermostat for Summer or Winter
operation. If replacement is ever necessary, install
ONLY the correct type thermostat. Other designs may
result in unsatisfactory coolant performance, poor gas
mileage, and increased emissions.
Brake System
Master Cylinder — Brake Fluid Level CheckThe fluid level of the master cylinder should be checked
when performing under the hood service, or immedi-
ately if the brake system warning lamp indicates system
failure.
The brake master cylinder has a translucent plastic
reservoir. On the outboard side of the reservoir, there is a
“FULL” mark and an “ADD” mark. The fluid level must
be kept within these two marks. Do not add fluid above
the “FULL” mark, because leakage may occur at the cap.With disc brakes the fluid level can be expected to fall as
the brake linings wear. However, an unexpected drop in
fluid level may be caused by a leak and a system check
should be conducted.
Refer to “Fluids, Lubricants, and Genuine Parts” in this
section for the correct fluid type.
WARNING!
•
Use of a brake fluid that may have a lower initial
boiling point, or is unidentified as to specification,
may result in sudden brake failure during hard
prolonged braking. You could have an accident.
•
Overfilling the brake fluid reservoir can result in
spilling brake fluid on hot engine parts and the
brake fluid catching fire.
(Continued)
MAINTAINING YOUR VEHICLE 447
7

CAUTION!
Using a transmission fluid other than the manufac-
turer’s recommended fluid may cause deterioration
in transmission shift quality and/or torque converter
shudder. Using a transmission fluid other than the
manufacturer’s recommended fluid will result in
more frequent fluid and filter changes. Refer to
“Fluids, Lubricants, and Genuine Parts” in this sec-
tion for correct fluid type.Fluid Level CheckIf your vehicle is equipped with a dipstick, use the
following procedure. If your vehicle has a capped dip-
stick tube, it is sealed and should not be tampered with.
Your authorized dealer has the proper tools to ensure that
the fluid level is set properly. The fluid level should be
checked when the engine is fully warmed up and thefluid in the transmission is at normal operating tempera-
ture. Operation of the transmission with an improper
fluid level will greatly reduce the life of the transmission
and of the fluid. Check the fluid level whenever the
vehicle is serviced.
Fluid Level Check – 545RFECheck the fluid level while the transmission is at normal
operating temperature 82°C (180°F). This occurs after at
least 15 miles (25 km) of driving. At normal operating
temperature the fluid cannot be held comfortably be-
tween the fingertips.
To check the automatic transmission fluid level properly,
the following procedure must be used:
1. Operate the engine at idle speed and normal operating
temperature.
2. The vehicle must be on level ground.
450 MAINTAINING YOUR VEHICLE

VEHICLE STORAGEIf you are storing your vehicle for more than 21 days, we
recommend that you take the following steps to mini-
mize the drain on your vehicle’s battery:•
Disconnect the Ignition-Off Draw (IOD) fuse located in
the Integrated Power Module, located in the engine
compartment. The IOD cavity includes a snap-in re-
tainer that allows the fuse to be disconnected without
removing it from the fuse block.
•
The electronic shift transfer case should be placed in
the 4HI mode and kept in this position to minimize the
battery drain.
•
As an alternative to the above steps you may discon-
nect the negative cables from both batteries.
•
Any time you store your vehicle or keep it out of
service (i.e., vacation) for two weeks or more, run the
air conditioning system at idle for about five minutesin the fresh air and high blower setting. This will
ensure adequate system lubrication to minimize the
possibility of compressor damage when the system is
started again.
NOTE:
•
When reinstalling the IOD fuse push firmly until fully
seated; the gauges in the instrument cluster will do a
full sweep when the ignition key is cycled to RUN.
This is a normal condition.
•
When the vehicle is shipped from the factory, the IOD
fuse is in the up or extracted position. If the radio,
interior lamps, keyless entry or other features do not
work with the key OFF, check the position of the fuse
(or check to see if the fuse is blown) to ensure that it is
fully seated. When the IOD fuse is extracted, the
instrument cluster in the odometer window will dis-
play NO FUSE.”
MAINTAINING YOUR VEHICLE 463
7

At Each Stop for Fuel•
Check the engine oil level about 5 minutes after a fully
warmed engine is shut off. Checking the oil level while
the vehicle is on level ground will improve the accu-
racy of the oil level reading. Add oil only when the
level is at or below the ADD or MIN mark.
•
Check the windshield washer solvent and add if
required.
Once a Month
•
Check tire pressure and look for unusual wear or
damage.
•
Inspect the battery, clean and tighten the terminals as
required.
•
Check the fluid levels of the coolant reservoir, brake
master cylinder, power steering and transmission and
add as needed.
•
Check all lights and other electrical items for correct
operation.
At Each Oil Change
•
Change the engine oil filter.
•
Inspect the brake hoses and lines.
CAUTION!
Failure to perform the required maintenance items
may result in damage to the vehicle.Required Maintenance IntervalsRefer to the Maintenance Schedules on the following
pages for the required maintenance intervals.
484 MAINTENANCE SCHEDULES
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Adding Fuel........................... 379
Adjustable Pedals ....................... 141
Air Cleaner, Engine (Engine Air Cleaner Filter) . . . 434
Air Conditioner Maintenance ............... 435
Air Conditioning Refrigerant .............435,436
Air Conditioning System ................237,435
Air Conditioning System, Zone Control ........ 240
Air Pressure, Tires .................... 355,360
Airbag ............................ 34,47,54
Airbag Light ....................... 58,75,189
Airbag On/Off Switch ..................... 54
Alarm Light ........................... 191
Alarm (Security Alarm) .................... 18
Alarm System (Security Alarm) ............... 18
Alterations/Modifications, Vehicle ............. 7
Antenna, Satellite Radio ................... 230
Antifreeze (Engine Coolant) ...........442,443,478
Disposal ............................ 445
Anti-Lock Brake System (ABS) .............. 333Anti-Lock Warning Light
...............196,332
Anti-Theft Security Alarm (Theft Alarm) ........ 18
Anti-Theft System ........................ 18
Appearance Care ........................ 452
Ashtray ............................... 164
Assistance Towing ....................... 101
Automatic Dimming Mirror ................. 82
Automatic Transaxle ...................... 12
Interlock System ....................... 14
Automatic Transmission Adding Fluid ......................... 451
Fluid and Filter Changes ................. 452
Fluid Level Check ................... 449,450
Fluid Type ........................ 449,480
Shifting ............................. 255
Special Additives ...................... 452
Axle Fluid .......................... 448,480
Axle Lubrication (Axle Fluid) ............... 448510 INDEX

Bar, Stabilizer/Sway System................ 282
Battery ............................... 434
Emergency Starting ..................... 419
Saving Feature (Protection) ............... 133
Belts, Seat ............................ 35,75
Body Builders Guide ....................... 6
Body Mechanism Lubrication ............... 437
B-Pillar Location ........................ 350
Brake Assist System ...................... 335
Brake Control System, Electronic ............. 333
Brake Fluid ......................... 447,480
Brake System ........................ 330,447
Anti-Lock (ABS) .................... 331,333
Fluid Check .......................... 447
Master Cylinder ....................... 447
Parking ............................. 329
Warning Light ........................ 194
Break-In Recommendations, New Vehicle ........ 73
Bulb Replacement ....................... 465 Bulbs, Light
.......................... 76,464
Cab Top Clearance Lights .................. 473
Calibration, Compass ..................... 151
Camper ............................... 178
Capacities, Fluid ........................ 478
Caps, Filler Oil (Engine) .......................... 432
Power Steering ........................ 328
Radiator (Coolant Pressure) ............... 444
Car Washes ............................ 453
Carbon Monoxide Warning ............74,179,379
Cargo Light ............................ 135
CD (Compact Disc) Player ...............202,216
Cellular Phone .......................... 86
Center High Mounted Stop Light ............ 472
Center Lap Belts ......................... 44
Center Seat Storage Compartment .........167,169
Certification Label ....................... 381
INDEX 511
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