2005 DODGE RAM 2500 DIESEL ECU

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

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.
Brake System
Power Disc Brakes (Front and Rear)
Disc brakes do not require adjustment; however, several
hard stops during the break-in period are recommended
to seat the linings and wear off any foreign material.
366 MAINTAINING YOUR VEHICLE

Restraint, Head......................... 108
Restraints, Child.......................56,62
Rotation, Tires.......................... 279
Safety Checks Inside Vehicle................. 70
Safety Checks Outside Vehicle............... 70
Safety Defects, Reporting.................. 428
Safety Information, Tire................... 260
Safety Tips............................. 68
Seat Belt Maintenance.................... 383
Seat Belt Reminder....................... 43
Seat Belts..........................33,34,70
Adjustable Upper Shoulder Anchorage........ 41
And Pregnant Women................... 45
Child Restraint.......................56,67
Extender............................. 45
Front Seat............................ 34
Pretensioners.......................... 43
Reminder............................ 163Seats..............................106,107
Adjustment.......................... 106
Child............................... 67
Folding Floor......................... 148
Heated.............................. 112
Lumbar Support....................... 109
Power.............................. 110
Reclining............................ 108
Security Alarm (Theft Alarm).............29,166
Selection of Coolant...................... 398
Sentry Key............................. 11
Service Assistance....................... 424
Service Contract......................... 426
Service Information...................... 340
Service Manuals........................ 429
Setting the Clock........................ 170
Shifting............................... 237
Automatic Transmission................. 237
Manual Transmission................... 241
442 INDEX