2005 DODGE RAM 2500 DIESEL coolant temperature

WARNING!
Never add coolant when the engine is overheated.
Do not loosen or remove the pressure cap to cool an
overheated engine. Heat causes pressure 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.
CAUTION!
Recheck the cooling system to insure total system is
full of coolant.
Fan
Inspection
Check the fan for cracks and bent or broken blades. If any
of these conditions exist, you must replace the fan. Make
sure it is securely mounted.
NOTE:This service procedure must be performed by a
trained service technician. Make arrangements with your
authorized Dodge Truck Dealer for this inspection.
Charge Air Cooler (Inter-Cooler)
The charge air cooler is positioned between the radiator
and the air conditioner condenser. Air enters the engine
through the air cleaner and passes through the turbo-
charger where it is pressurized. This pressurized air
rapidly reaches high temperature. The air is then directed
through a hose to the charge air cooler and through
another hose to the intake manifold of the engine. The air
entering the engine has been cooled by about 50 to 100
MAINTAINING YOUR VEHICLE 365
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
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Schedule “B”
Follow schedule “B” if you usually operate your vehicle
under one or more of the following conditions.
•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).
•Off-road or desert operation.
•Extensive operation at high engine speeds (greater
than 2900 rpm) and loads (greater than 70% throttle).
NOTE:IfANYof these apply to you then change your
coolant every 102,000 miles (163 000 km) or 60 months,
whichever comes first and follow schedule “B” of the
Maintenance Schedulessection of this manual.
SCHEDULE “B” 405
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Child Seat............................56,62
Cigar Lighter........................... 144
Climate Control......................... 204
Clock................................ 170
Clutch Linkage Maintenance................ 368
Compact Disc Maintenance................. 203
Compact Disc Player..................177,183
Compact Spare Tire...................... 272
Compass...........................131,132
Compass Calibration..................... 132
Compass Variance....................... 133
Computer, Trip/Travel.................... 128
Console, Overhead....................... 127
Contract, Service........................ 426
Cooling System......................... 361
Coolant Capacity...................... 397
Coolant Level......................... 361
Disposal of Used Coolant................ 364
Drain, Flush, and Refill.................. 362Inspection........................... 361
Radiator Cap......................... 364
Selection of Coolant..................363,398
Temperature Gauge..................... 165
Cruise Control (Speed Control).............. 124
Cup Holder............................ 145
Customer Assistance..................... 424
Daytime Running Lights................... 117
Dealer Service.......................... 340
Defroster, Rear Window..............81,210,214
Defroster, Windshield..................206,209
Delay (Intermittent) Wipers................. 120
Differential, Limited-Slip.................. 254
Dipsticks.............................. 343
Power Steering........................ 356
Disc Brakes............................ 366
Disposal.............................. 348
Engine Oil........................... 348
434 INDEX

Used Coolant......................... 364
Door Ajar............................. 164
Door Locks............................. 16
Door Opener, Garage..................... 134
Draining Fuel/Water Separator Filter.......... 351
Drive Belts............................ 348
Dual Rear Wheels.....................280,324
Electric Rear Window Defrost..........81,210,214
Electrical Power Outlets................... 143
Electronic Speed Control................... 124
Emergency Brake........................ 255
Emergency, In Case of
Freeing Vehicle When Stuck............... 331
Hazard Warning Flasher................. 314
Jacking............................. 318
Jump Starting......................... 327
Tow Hooks.......................... 331
Towing............................. 332Emission Control System Maintenance......... 402
Engine............................... 338
Air Cleaner.......................... 349
Block Heater.......................224,231
Break-In Recommendations................ 67
Compartment......................... 338
Coolant (Antifreeze).................363,398
Cooling............................. 361
Data Plate........................... 311
Identification......................... 338
Idling.............................. 233
Jump Starting......................... 327
Oil ..............................343,398
Oil Synthetic......................... 233
Runaway............................ 281
Temperature Gauge..................... 165
Ethylene Glycol Antifreeze................. 363
Exhaust Gas Caution................69,155,360
Exhaust System....................69,360,375
INDEX 435
10

Exterior Lighting........................ 116
Fan .................................. 365
Filters
Engine Oil.....................343,346,398
Flashers
Turn Signal.......................... 118
Flat Tire Stowage.....................317,326
Fluid, Brake........................... 399
Fluid Capacities......................... 397
Fluid Level Checks
Brake............................... 367
Manual Transmission................... 370
Power Steering........................ 356
Transfer Case......................... 370
Fog Lights.......................... 117,396
Fold Flat Load Floor..................... 148
Four Wheel Drive....................... 243
Four-Way Hazard Flasher.................. 314Freeing A Stuck Vehicle................... 331
Front Axle..........................358,369
Fuel..............................281,315
Diesel.........................281,315,398
Gauge.............................. 168
Requirements......................... 281
Specifications......................... 284
Tank Capacity........................ 397
Fuses................................ 383
Garage Door Opener..................... 134
Gauges............................... 169
Coolant Temperature.................... 165
Fuel................................ 168
Oil Pressure.......................... 164
Speedometer......................... 164
Tachometer.......................... 163
Voltmeter............................ 162
Gear Ranges........................... 237
436 INDEX