2008 DODGE RAM 4500 CHASSIS CAB radiator

²Do 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.
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 Ð Inter-Cooler (Diesel
Engines)
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
degrees Fahrenheit. This cooling process enables more
efficient burning of fuel resulting in fewer emissions.
To guarantee optimum performance of the system, keep
the surfaces of the charge air cooler, condenser and
radiator clean and free of debris. Periodically check the
hoses leading to and from the charge air cooler for cracks
or loose clamps resulting in loss of pressure and reduced
engine performance.
MAINTAINING YOUR VEHICLE 439
7

Automatic Transmission (Gas Engine Only)..... 448
Axle Fluid..........................444,478
Axle Lubrication (Axle Fluid)............... 444
Ball Joints............................. 429
Battery............................425,426
Blanket..........................265,427
Emergency Starting..................... 390
Keyless Transmitter Replacement (RKE)....... 25
Saving Feature (Protection)............... 123
Bearings.............................. 451
Belts, Drive............................ 413
Belts, Seat.............................. 35
Body Builders Guide....................... 7
Body Mechanism Lubrication............... 430
B-Pillar Location........................ 318
Brake Fluid............................ 478
Brake System........................309,440
Anti-Lock (ABS)....................... 310Disc Brakes.......................... 440
Fluid Check.......................... 442
Hoses.............................. 440
Master Cylinder....................... 442
Parking............................. 308
Warning Light........................ 180
Bulb Replacement....................... 468
Bulbs, Light............................ 468
Cab Top Clearance Lights.................. 473
Calibration, Compass..................139,149
Capacities, Antifreeze (Engine Coolant)........ 474
Capacities, Fluid........................ 474
Caps, Filler
Oil (Engine).......................408,410
Power Steering........................ 428
Radiator (Coolant Pressure)............... 436
Car Washes............................ 457
Carbon Monoxide Warning...............74,340
INDEX 511
10

Cassette Tape and Player Maintenance......... 232
Catalyst Full Message..................... 422
Catalytic Converter...................... 420
CD (Compact Disc) Player............186,194,208
Cellular Phone.......................... 87
Center Lap Belts......................... 44
Center Seat Storage Compartment.........157,158
Certification Label....................... 347
Charge Air Cooler....................... 439
Chart, Tire Sizing........................ 315
Check Engine Light (Malfunction Indicator
Light)................................ 179
Child Restraint........................59,60
Child Restraint Tether Anchors.............63,67
Child Seat............................60,66
Cigar Lighter........................... 152
Cleaning
Wheels............................. 459
Climate Control......................... 234Clock.....................183,188,196,209,222
Clutch Linkage Maintenance................ 443
Compact Disc (CD) Maintenance............. 233
Compass.............................. 139
Compass Calibration..................139,149
Compass Variance....................140,150
Computer, Trip/Travel.................... 135
Console, Overhead....................... 142
Contract, Service........................ 502
Coolant Pressure Cap (Radiator Cap).......... 436
Cooling System......................... 433
Adding Coolant (Antifreeze).............. 436
Coolant Capacity...................... 474
Coolant Level...................433,434,437
Disposal of Used Coolant................ 437
Drain, Flush, and Refill.................. 435
Inspection........................... 437
Points to Remember.................... 438
Pressure Cap......................... 436
512 INDEX

Radiator Cap......................... 436
Selection of Coolant (Antifreeze).........435,476
Temperature Gauge..................... 176
Cruise Control (Speed Control).............. 132
Cup Holder............................ 154
Customer Assistance..................... 500
Data Recorder, Event...................... 57
Daytime Running Lights................... 125
Dealer Service.......................... 403
Defroster, Rear Window.................85,161
Defroster, Windshield................75,235,238
Delay (Intermittent) Wipers................. 128
Diesel Exhaust Brake..................... 270
Diesel Fuel............................ 341
Diesel Fuel Requirements.................. 341
Bulk Storage of........................ 346
Differential, Limited-Slip.................. 301
Dipsticks.............................. 406Power Steering........................ 428
Disc Brakes............................ 440
Disposal.............................. 412
Engine Oil........................... 412
Used Coolant (Antifreeze)................ 437
Door Locks............................. 27
Door Locks, Automatic.................... 146
Downshifting.......................... 288
Draining Fuel/Water Separator Filter.......... 417
Drive Belts............................ 413
Driving
Through Flowing, Rising, or Shallow Standing
Water.............................. 305
Dual Rear Wheels.....................336,386
DVD Player (Video Entertainment System)...... 226
Electric Rear Window Defrost.............85,161
Electrical Power Outlets................... 151
Electronic Speed Control (Cruise Control)...... 132
INDEX 513
10

Phone, Cellular.......................... 87
Phone, Hands-Free (UConnectŸ)............. 87
Placard, Tire and Loading Information......... 318
Positive Crankcase Valve.................. 425
Power
Distribution Center (Fuses)............... 462
Door Locks........................... 28
Mirrors.............................. 84
Outlet (Auxiliary Electrical Outlet).......... 151
Seats............................... 117
Sliding Rear Window.................34,162
Steering..........................312,428
Take-Off Adapter...................... 302
Take-Off Operation..................... 302
Windows............................. 32
Power Steering Fluid..................... 478
Pregnant Women and Seat Belts.............. 47
Pretensioners
Seat Belts............................. 45Programmable Electronic Features............ 146
PTO (Power Take-Off).................... 302
Radial Ply Tires......................... 328
Radiator Cap (Coolant Pressure Cap).......... 436
Radio Broadcast Signals................... 184
Radio, Navigation....................... 222
Radio Operation...................186,194,208
Radio Remote Controls.................... 230
Radio, Satellite.......................222,226
Radio (Sound Systems)..............186,194,208
Rear Axle (Differential).................443,444
Rear Wheel Bearings..................... 451
Rear Window Features.................... 161
Rear Window, Sliding...................34,162
Reclining Front Seats..................... 115
Recorder, Event Data...................... 57
Recreational Towing...................... 369
Shifting into Transfer Case Neutral (N)....370,372
INDEX 521
10