2007 DODGE RAM 2500 DIESEL radiator

•Do not overfill the coolant recovery bottle.
•Check coolant freeze point in the radiator and in the
coolant recovery bottle. If antifreeze needs to be
added, contents of coolant recovery bottle must also be
protected against freezing.
•If frequent coolant additions are required, or if the
level in the coolant recovery bottle does not drop when
the engine cools, the cooling system should be pres-
sure tested for leaks.
•Maintain coolant concentration at 50% HOAT engine
coolant (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, also.
•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.
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.
MAINTAINING YOUR VEHICLE 407
7

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
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.
Hoses And Vacuum/Vapor Harnesses
Inspect surfaces of hoses and nylon tubing for evidence
of heat and mechanical damage. Hard or soft spots,
brittle rubber, cracking, tears, cuts, abrasions, and exces-
sive swelling indicate deterioration of the rubber.
Pay particular attention to those hoses nearest to high
heat sources such as the exhaust manifold. Inspect hose
routing to be sure hoses do not come in contact with any
heat source or moving component which may cause heat
damage or mechanical wear.
Insure nylon tubing in these areas has not melted or
collapsed.
Inspect all hose connections such as clamps and cou-
plings to make sure they are secure and no leaks are
present.
Components should be replaced immediately if there is
any evidence of wear or damage that could cause failure.
408 MAINTAINING YOUR VEHICLE

Axle Fluid.......................... 412,447
Axle Lubrication (Axle Fluid) ............... 412
Ball Joints ............................. 397
Battery ............................... 394
Blanket .......................... 262,396
Emergency Starting ..................... 367
Keyless Transmitter Replacement (RKE) ....... 23
Saving Feature (Protection) ............... 124
Bearings .............................. 415
Belts, Drive ............................ 389
Belts, Seat .............................. 32
Body Mechanism Lubrication ............... 399
B-Pillar Location ........................ 300
Brake Fluid ............................ 447
Brake System ........................ 291,409
Anti-Lock (ABS) ....................... 292
Disc Brakes .......................... 409
Fluid Check .......................... 409 Hoses
.............................. 411
Master Cylinder ....................... 409
Parking ............................. 290
Warning Light ........................ 184
Bulb Replacement ....................... 433
Bulbs, Light ............................ 432
Cab Top Clearance Lights .................. 441
Calibration, Compass ..................... 141
Camper ............................... 170
Capacities, Antifreeze (Engine Coolant) ........ 445
Capacities, Fluid ........................ 445
Caps, Filler Power Steering ........................ 397
Radiator (Coolant Pressure) ............... 405
Car Washes ............................ 422
Carbon Monoxide Warning ...............73,172
Cargo Light ............................ 126
Cassette Tape and Player Maintenance ......... 232
INDEX 479
10

CD (Compact Disc) Player............190,198,211
Cellular Phone .......................... 87
Center High Mounted Stop Light ............ 440
Center Lap Belts ......................... 42
Center Seat Storage Compartment .........159,160
Certification Label ....................... 323
Charge Air Cooler ....................... 408
Chart, Tire Sizing ........................ 297
Check Engine Light (Malfunction Indicator Light) . 183
Child Restraint ........................ 57,58
Child Restraint Tether Anchors .............62,66
Child Seat ............................ 58,65
Cigar Lighter ........................... 154
Cleaning Wheels ............................. 424
Climate Control ......................... 234
Clock ..................... 187,192,200,213,226
Clutch Linkage Maintenance ................ 411
Compact Disc (CD) Maintenance ............. 233 Compact Spare Tire
...................... 308
Compass ........................... 140,141
Compass Calibration ..................... 141
Compass Variance ....................... 142
Computer, Trip/Travel .................... 137
Console, Overhead ....................... 136
Contract, Service ........................ 472
Coolant Pressure Cap (Radiator Cap) .......... 405
Cooling System ......................... 401
Adding Coolant (Antifreeze) .............. 404
Coolant Capacity ...................... 445
Coolant Level ................... 401,402,406
Disposal of Used Coolant ................ 406
Drain, Flush, and Refill .................. 403
Inspection ........................... 406
Points to Remember .................... 406
Pressure Cap ......................... 405
Radiator Cap ......................... 405
Selection of Coolant (Antifreeze) .........403,446
480 INDEX

Phone, Cellular.......................... 87
Phone, Hands-Free (UConnect™) ............. 87
Pickup Box ............................ 169
Placard, Tire and Loading Information ......... 300
Power Distribution Center (Fuses) ............... 426
Door Locks ........................... 25
Mirrors .............................. 84
Outlet (Auxiliary Electrical Outlet) .......... 152
Seats ............................... 113
Sliding Rear Window ................. 30,165
Steering .......................... 294,397
Sunroof ............................. 149
Windows ............................. 29
Power Steering Fluid ..................... 447
Pregnant Women and Seat Belts .............. 44
Pretensioners Seat Belts ............................. 42
Programmable Electronic Features .........145,148 Programming Transmitters
(Remote Keyless Entry)
.................145,148
Radial Ply Tires ......................... 307
Radiator Cap (Coolant Pressure Cap) .......... 405
Radio Broadcast Signals ................... 188
Radio, Navigation ....................... 225
Radio Operation ................... 190,198,211
Radio Remote Controls .................... 231
Radio, Satellite .......................... 226
Radio (Sound Systems) ..............190,198,211
Rear Axle (Differential) ................. 41 1,412
Rear Seat, Folding ..................... 1 15,116
Rear Wheel Bearings ..................... 416
Rear Window Features .................... 164
Rear Window, Sliding ................... 31,165
Reclining Front Seats ..................... 111
Reclining Rear Seats ...................... 114
Recorder, Event Data ...................... 56
488 INDEX