2005 DODGE RAM 2500 DIESEL air condition

Required Maintenance For Noise Control Systems
The following maintenance services must be performed
every 6 months or 6,000 miles (9 600 km), whichever
comes first, to assure proper operation of the noise
control systems. In addition, inspection and service
should be performed anytime a malfunction is observedor suspected. Proper maintenance of the entire vehicle
will help the effectiveness of the noise control systems.
Exhaust System
Inspect the entire exhaust system for leaks and damaged
parts. Devices such as hangers, clamps, and U-bolts
should be tight and in good condition. Damaged compo-
nents, burned or blown out mufflers, burned or rusted
out exhaust pipes should be replaced according to the
procedures and specifications outlined in the appropriate
service manual.
Air Cleaner Assembly
Inspect air cleaner housing for proper assembly and fit.
Make certain that the air cleaner is properly positioned
and that the cover is tight. Check all hoses leading to the
cleaner for tightness. The air filter element must also be
clean and serviced according to the instructions outlined
in the Maintenance Schedule Section of this manual.
MAINTAINING YOUR VEHICLE 375
7

Appearance Care and Protection from Corrosion
Protection of Body and Paint from Corrosion
Vehicle body care requirements vary according to geo-
graphic locations and usage. Chemicals that make roads
passable in snow and ice, and those that are sprayed on
trees and road surfaces during other seasons, are highly
corrosive to the metal in your vehicle. Outside parking,
which exposes your vehicle to airborne contaminants,
road surfaces on which the vehicle is operated, extreme
hot or cold weather and other extreme conditions will
have an adverse effect on paint, metal trim, and under-
body protection.
The following maintenance recommendations will enable
you to obtain maximum benefit from the corrosion
resistance built into your vehicle.
What Causes Corrosion?
Corrosion is the result of deterioration or removal of
paint and protective coatings from your vehicle.The most common causes are:
•Road salt, dirt and moisture accumulation.
•Stone and gravel impact.
•Insects, tree sap and tar.
•Salt in the air near seacoast localities.
•Atmospheric fallout/industrial pollutants.
Washing
•
Wash your vehicle regularly. Always wash your ve-
hicle in the shade using a mild car wash soap, and
rinse the panels completely with clear water.
NOTE:Fold the7x10inch trailer towing mirrors
rearward prior to entering an automated car wash.
MAINTAINING YOUR VEHICLE 379
7

EMISSION CONTROL SYSTEM MAINTENANCE
The “Scheduled” maintenance services, listed inbold
typein this section (Section 8) must be done at the times
or mileages specified to assure the continued proper
functioning of the emission control system. These, and all
other maintenance services included in this manual,
should be done to provide best vehicle performance and
reliability. More frequent maintenance may be needed for
vehicles in severe operating conditions such as dusty
areas and very short trip driving.
Inspection and service also should be done any time a
malfunction is suspected.
NOTE:Maintenance, replacement, or repair of the emis-
sion control devices and systems on your vehicle may be
performed by any automotive repair establishment or
individual using any automotive part which has been
certified pursuant to U.S. EPA or, in the State of Califor-
nia, California Air Resources Board regulations.
MAINTENANCE SCHEDULES — 24–VALVE
CUMMINS TURBO DIESEL
There are two maintenance schedules that show the
requiredservice for your vehicle.
First is Schedule“B”. It is for vehicles that are operated
under the conditions that are listed below and at the
beginning of the schedule.
•Frequent short trips where the engine does not achieve
full operating temperature (operating temperature de-
fined as 190° F (66° C) coolant temperature).
•Extensive engine idling (over 10 minutes per hour of
operation) at ambient temperatures less than 32° F (0°
C).
•Driving in dusty conditions.
•Frequent trailer towing.
•Taxi, police, or delivery service (commercial service).
402 MAINTENANCE SCHEDULES
8
M
A
I
N
T
E
N
A
N
C
E
S
C
H
E
D
U
L
E
S

Air Cleaner, Engine (Engine Air Cleaner Filter) . 349,375
Air Conditioner Maintenance............... 355
Air Conditioning Refrigerant.............355,356
Air Conditioning System................207,355
Air Conditioning System, Zone Control........ 211
Air Filter.............................. 349
Air Pressure, Tires....................269,276
Airbag..............................45,51
Airbag Light.........................70,163
Airbag On/Off Switch..................... 51
Airbag, Side............................ 54
Alarm..............................29,166
Alignment and Balance................... 276
Alterations/Modifications, Vehicle............. 8
Antifreeze (Engine Coolant)................ 363
Capacities........................... 397
Anti-Lock Warning Light...............164,259
Anti-Theft System.....................29,166
Appearance Care........................ 379Ashtray............................... 144
Automatic Transmission................... 370
Adding Fluid......................... 371
Fluid and Filter Changes................. 372
Fluid Level Check...................... 370
Fluid Type........................371,399
Shift Indicator........................ 166
Shifting............................. 237
Special Additives...................... 373
Axle Fluid.......................291,369,399
Axle Lubrication.....................291,369
Ball Joints............................. 357
Battery............................... 354
Blanket..........................232,355
Emergency Starting..................... 327
Bearings.............................. 373
Belts, Drive............................ 348
Belts, Seat.............................. 34
432 INDEX