2004 DODGE RAM 2500 DIESEL change time

Temperature Control
The rotary knob at the center
of the control panel controls
the temperature of the inte-
rior air. You can choose your
degree of comfort by rotating
the knob. The coldest tem-
perature setting is to the ex-
treme left (blue region) and
the warmest setting is to the
extreme right (red region) of
the rotation.
Circulation
The cab is designed with features to promote outside air
circulation. There are grilles in the cab back panel. These
are air exhausters that provide the means for regular
exchange of cab air.Side window demisters direct air flow specifically to the
window glass to help prevent interior fogging of the
glass. They are located in the extreme outside upper
edges of the instrument panel. The demisters also pro-
vide extra air ducts for circulation. They are in operation
whenever the Floor, Mix or Defrost modes are in use. To
remove frost from the side windows, it is best to use the
full defrost mode.
NOTE:When you turn off the engine you may hear a
hissing sound from under the hood for a short period of
time. This is a normal condition that occurs if the air
conditioning system has been on. It is not an indication of
a problem with the air conditioning system.
190 UNDERSTANDING YOUR INSTRUMENT PANEL

directed on the container, aids cleaning action, reduces
the freezing point to avoid line clogging, and is not
harmful to paint or trim.
Exhaust System
The best protection against carbon monoxide entry into
the vehicle body is a properly maintained engine exhaust
system.
Whenever a change is noticed in the sound of the exhaust
system, when exhaust fumes can be detected inside the
vehicle, or when the underside or rear of the vehicle is
damaged, have a competent mechanic inspect the com-
plete exhaust system and adjacent body areas for broken,
damaged, deteriorated, or mispositioned parts. Open
seams or loose connections could permit exhaust fumes
to seep into the passenger compartment. In addition,
inspect the exhaust system each time the vehicle is raised
for lubrication or oil change. Replace as required.
WARNING!
Exhaust gases can injure or kill. They contain carbon
monoxide (CO) which is colorless and odorless.
Breathing it can make you unconscious and can
eventually poison you. To avoid breathing CO, fol-
low the preceding safety tips.
Exhaust System Rubber Isolator and Loop-Type
Hanger Ð If Equipped
Inspect surfaces whenever the vehicle is hoisted for
rubber to metal separation or deep cracks. If, however,
excessively deep localized cracks are present, or any part
of the exhaust system abnormally contacts the under-
body hardware, the isolator and/or hanger should be
replaced.
342 MAINTAINING YOUR VEHICLE

It is important that proper lubricant is used in the
transmission. Refer to Recommended Fluids, Lubricants
and Genuine Parts for the correct lubricant type. A band
adjustment and filter change should be made at the time
of the oil change.
The fluid and filter should be changed and the bands
adjusted as specified in the Maintenance Schedule (Sec-
tion 8). Vehicles having severe usage should follow
Maintenance Schedule ªBº of the Maintenance Schedule
(Section 8).
Severe usage consists of:
²Off-the-highway operation;
²Trailer towing;
²Snow plow operation;
²Prolonged operation with heavy loading, especially in
hot weather.NOTE:If the transmission is disassembled for any
reason, the fluid and filter should be changed, and the
bands adjusted.
Special Additives
The manufacturer recommends against the addition of
any additives to the transmission. Exception to this
policy is the use of special dyes to aid in detecting fluid
leaks. The use of transmission sealers should be avoided,
since they may adversely affect seals.
Front Wheel Bearings
Front wheel bearings for all Dodge Ram Trucks are
sealed-for-life. They do not require greasing or seal
replacement. In some instances, these bearings will
ªpurgeº excess grease and the bearing housing will look
slightly wet. This is normal.
²Periodic inspection for excess play is recommended.
MAINTAINING YOUR VEHICLE 355
7

Miles 116,250 120,000 123,750 127,500 131,250 135,000
(Kilometers) (186 000) (192 000) (198 000) (204 000) (210 000) (216 000)
Change front axle fluid (4X4). X X
Inspect brake linings. X X
Inspect and adjust parking brake if necessary. X X
Drain and refill automatic transmission fluid.
Replace filter and adjust bands.X
Inspection and service should also be performed anytime
a malfunction is observed or suspected. Retain all re-
ceipts.
SCHEDULE ªBº 395
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Jack Location........................... 298
Jack Operation.......................... 300
Jump Starting.......................... 310
Key, Replacement........................ 12
Key, Sentry............................. 11
Key-In Reminder......................... 11
Keyless Entry System...................... 22
Keys................................ 11,16
Lane Change and Turn Signals.............. 103
Lap Belts.............................. 42
Lap/Shoulder Belts....................... 34
LATCH (Lower Anchors and Tether for CHildren) . 59
Lights...............................70,99
Airbag............................55,144
Anti-Lock Warning..................146,242
Battery Saver......................... 100
Brake Warning........................ 147Bulb Replacement...................... 367
Cap Top Clearance..................... 375
Center Mounted Stop................... 373
Check Engine......................... 143
Courtesy/Reading..................... 113
Cruise.............................. 147
Daytime Running...................... 102
Dual Wheel Assembly Rear............... 376
Fog .............................102,378
Four-Wheel Drive Indicator............... 230
Hazard Warning Flasher................. 296
Headlights........................... 101
High Beam........................104,144
High Beam Indicator.................... 144
High Beam/Low Beam Select............. 104
Instrument Cluster..................... 143
Intensity Control....................... 100
Interior...........................99,113
Lights On Reminder.................... 102
418 INDEX