key Ram 2500 (Diesel) 2007 Workshop Manual

NOTE:Flashing neutral (N) position indicator light
indicates that shift requirements have not been met.
CAUTION!
Damage to the transmission may occur if the trans-
mission is shifted into Park (P) with the transfer case
in Neutral (N) and the engine RUNNING. With the
transfer case in Neutral (N) ensure that the engine is
OFF prior to shifting the transmission into Park (P).
Returning to Normal Operation — Electronic Shift
Transfer Case
Use the following procedure to prepare your vehicle for
normal usage.
1. Bring vehicle to a complete stop.
2. Shut OFF the engine.3. Turn the ignition key to the ON position, but do not
start the engine.
4. Depress the brake pedal.
5. Shift automatic transmission to Neutral (N) or depress
clutch on manual transmission.
6. Using the point of a ballpoint pen or similar object,
depress the recessed transfer case Neutral (N) button for
1 second.
7. After the Neutral (N) indicator light turns off release
the Neutral (N) button.
8. After the Neutral (N) button has been released the
transfer case will shift to the position identified by the
selector switch.
9. Shift automatic transmission into P (Park).
NOTE:The transfer case can not be shifted into Neutral
(N) from the 4Auto (if equipped) position.
382 STARTING AND OPERATING

NOTE:Items 1 through 5 are requirements that must be
met prior to depressing the Neutral (N) selection button,
and must continue to be met until 1 second elapses and
the shift has been completed. If any of these requirements
(with the exception of 3 - key ON) are not met prior to
depressing the Neutral (N) button or are no longer met
during the 1 second time, then all of the mode position
indicator lights will flash continuously until all require-
ments are met or until the Neutral (N) button is released.
NOTE:The ignition key must be ON for a shift to take
place and for the position indicator lights to be operable.
If the key is not ON, the shift will not take place and no
position indicator lights will be on or flashing.
NOTE:Flashing neutral (N) position indicator light
indicates that shift requirements have not been met.WARNING!
You or others could be injured if you leave the
vehicle unattended with the transfer case in the
Neutral (N) position without first fully engaging the
parking brake. The transfer case Neutral (N) position
disengages both the front and rear driveshafts from
the powertrain and will allow the vehicle to move
despite the transmission position. The parking brake
should always be applied when the driver is not in
the vehicle.
STARTING AND OPERATING 383
5

2. Crank the engine for 1 to 2 seconds. If the engine does
not start, then release the key or starter button back to the
RUN position (do not turn the key back to the OFF
position). The electric fuel transfer pump will continue to
run and purge air from the system for about 25 seconds.
After 25 seconds, attempt to start the engine again.
3. Start the engine using the Normal Starting Procedure.
4. Repeat the procedure if the engine does not start.
CAUTION!
Do not engage the starter motor for more than 15
seconds at a time. Allow two minutes between the
cranking intervals.
NOTE:The engine may run rough until the air is forced
from all the fuel lines.
CAUTION!
Diesel fuel will damage black top paving surfaces.
Drain the filter into an appropriate container.
WARNING!
Do not use alcohol or gasoline as a fuel blending
agent. They can be unstable under certain conditions
and be hazardous or explosive when mixed with
diesel fuel.
MAINTAINING YOUR VEHICLE 429
7

CAUTION!
Do not prefill the fuel filter when installing a new
fuel filter. There is a possibility debris could be
introduced into the fuel filter during this action. It is
best to install the filter dry and allow the in-tank lift
pump to prime the fuel system.
NOTE:The fuel filter and water separator assembly is
located on the driver’s side of the engine. The best access
to the water drain valve is through the driver’s side
wheel well.
NOTE:If water is detected in the water separator while
the engine is running or while the key is in the on
position, the water in fuel light will illuminate and an
audible chime will be heard 5 times. At this point you
should stop the engine and drain the water from the
separator.If the water in fuel light comes on and a single chime is
heard while you are driving, or with the key in the ON
position, there may be a problem with your water
separator wiring or sensor. See your authorized dealer
for service.
Upon proper draining of the water from the fuel filter, the
water in fuel light will remain illuminated for approxi-
mately 10 seconds. If the water was drained while the
engine was running, the water in fuel light may remain
on for approximately 3 minutes.
NOTE:Care should be taken in disposing of used fluids
from your vehicle. Used fluids, indiscriminately dis-
carded, can present a problem to the environment. Con-
tact your local dealer, service station, or government
agency for advice on recycling programs and for where
used fluids and filters can be properly disposed of in
your area.
MAINTAINING YOUR VEHICLE 431
7

Drain a small amount from the fuel/water separator
filter monthly or when the WATER IN FUEL indicator
lamp is on. Turn the drain valve, located on the bottom of
the filter, counterclockwise and allow any accumulated
water to drain into an approved container. Leave the
drain valve open until all water and contaminants have
been removed. Close the drain valve, by turning it
clockwise, when clean fuel is visible.
NOTE:The Fuel / Water separator drain valve is
located on the bottom of the fuel filter housing.
If more than a couple ounces of fuel has been drained,
follow the directions below for “Priming if the engine has
run out of fuel.”WARNING!
Do not open the high pressure fuel system with the
engine running. Engine operation causes high fuel
pressure. High pressure fuel spray can cause serious
injury or death.
Priming if the engine has run out of fuel
1. Add a substantial quantity of fuel to the tank 5 to 10
gallons (19L to 38L).
2. Crank the engine for 1 to 2 seconds. If the engine does
not start, then release the key or starter button back to the
RUN position (do not turn the key back to the OFF
position). The electric fuel transfer pump will continue to
run and purge air from the system for about 25 seconds.
After 25 seconds, attempt to start the engine again.
432 MAINTAINING YOUR VEHICLE

•Anytime you store your vehicle, or keep it out of
service (i.e. vacation) for two weeks or more, run the
air conditioning system at idle for about five minutes
in the fresh air and high blower setting. This will
insure adequate system lubrication to minimize the
possibility of compressor damage when the system is
started again.
NOTE:When reinstalling the IOD fuse push firmly until
fully seated, the gages in the Instrument Cluster will do
a full sweep, when the ignition key is cycled to RUN. This
is a normal condition.
REPLACEMENT LIGHT BULBS
LIGHT BULBS — Inside Bulb No.
Overhead Console Lights............... TS212-2
Dome Light............................7679
All of the inside bulbs are brass or glass wedge base.
Aluminum base bulbs are not approved.LIGHT BULBS — Outside Bulb No.
Back-Up..............................3057
Center High Mounted Stop Lamp............. 912
Fog Lamp...........................9006LL
Headlamp (Halogen)..................... H13
Side Marker Bulb....................... W5W
Park & Turn Signal...................3157NAK
Rear License Plate Lamp................... 168
Rear Cargo Light......................... 912
Tail & Stop............................3057
Cab Clearance Lights...................... 168
Dual Rear Wheel Sidemarker Light............ 168
Dual Rear Wheel Tailgate ID Lights (3)......... 168
MAINTAINING YOUR VEHICLE 473
7

Shifting ..........................291,297
Special Additives...................... 458
Autostick............................. 201
AxleFluid ..........................454,491
Axle Lubrication (Axle Fluid)............... 454
BallJoints ............................. 440
Battery............................... 437
Blanket..........................285,438
Emergency Starting..................... 399
Keyless Transmitter Replacement (RKE)....... 24
Saving Feature (Protection)............... 130
Bearings.............................. 458
Belts,Drive ............................ 422
Belts, Seat.............................. 34
Body Mechanism Lubrication............... 441
B-Pillar Location........................ 330
Brake Fluid............................ 491
Brake System........................321,451Anti-Lock (ABS)....................... 322
Disc Brakes.......................... 451
Fluid Check.......................... 452
Hoses.............................. 453
Master Cylinder....................... 452
Parking............................. 320
Warning Light........................ 203
Bulb Replacement....................... 474
Bulbs,Light ............................ 473
Cab Top Clearance Lights.................. 482
Calibration, Compass..................147,158
Camper............................... 188
Capacities, Antifreeze (Engine Coolant)........ 487
Capacities, Fluid........................ 487
Caps, Filler
Oil (Engine).......................... 418
Power Steering........................ 439
Radiator (Coolant Pressure)............... 447
INDEX 535
10

General Information.................... 18,114
Glass Cleaning.......................... 466
Grocery Bag Retainer..................... 181
Gross Axle Weight Rating.................. 359
Gross Vehicle Weight Rating................ 358
GVWR ............................... 355
Hands-Free Phone (UConnect™).............. 89
Hazard Warning Flasher................... 386
Head Restraints......................... 117
Headlights............................ 474
High Beam........................... 134
High Beam/Low Beam Select Switch........ 134
Lights On Reminder.................... 132
Passing............................. 134
Switch .............................. 130
Heated Mirrors....................... 88,181
Heated Seats........................... 125
Heater............................... 259High Beam/Low Beam Select (Dimmer) Switch . . 134
Hitches
TrailerTowing ........................ 362
Hoisting .............................. 398
HomeLink(Garage Door Opener) Transmitter . . . 160
Hood Release.......................... 127
Hoses.............................451,453
Hub Caps............................. 394
Hydraulic Clutch Fluid.................... 453
Ignition............................... 12
Key ................................. 12
Ignition Key Removal..................... 12
Illuminated Entry........................ 19
Infant Restraint........................ 60,61
Inflation Pressure Tires.................... 343
Information Center...................... 151
Information Center, Vehicle................. 151
Inside Rearview Mirror.................... 84
540 INDEX

Instrument Cluster....................196,198
Instrument Panel and Controls.............. 195
Instrument Panel Lens Cleaning............. 467
Integrated Power Module (Fuses)............ 468
Interior Appearance Care.................. 466
Interior Lights.......................... 129
Intermittent Wipers (Delay Wipers)........... 135
Intervention Regeneration Strategy........... 434
Introduction............................. 4
Jack Location........................... 387
Jack Operation.......................... 389
Jump Starting.......................... 399
Key, Replacement........................ 16
Key, Sentry (Immobilizer)................... 15
Keyless Entry System...................... 20
Keys................................. 12Lane Change and Turn Signals.............. 133
LapBelts .............................. 43
Lap/Shoulder Belts....................... 34
LATCH (Lower Anchors and Tether for CHildren) . 65
LifeofTires ............................ 340
Lights .............................. 78,128
Airbag............................ 57,199
Anti-Lock Warning..................204,324
Brake Warning........................ 203
Bulb Replacement...................473,474
Cap Top Clearance..................... 482
Cargo .............................. 132
Center Mounted Stop................... 481
Check Engine (Malfunction Indicator)........ 202
Courtesy/Reading..................... 142
Cruise .............................. 206
Daytime Running...................... 131
Dome.............................. 150
Dual Wheel Assembly Rear............... 484
INDEX 541
10

Fog ..........................132,202,477
Four-Wheel Drive Indicator............... 309
Hazard Warning Flasher................. 386
Headlights........................... 130
High Beam........................134,199
High Beam Indicator.................... 199
High Beam/Low Beam Select............. 134
Illuminated Entry....................... 19
Instrument Cluster..................... 198
Intensity Control....................... 129
Interior..........................129,142
Lights On Reminder.................... 132
Passing............................. 134
Reading............................. 150
Seat Belt Reminder..................... 199
Service...........................473,474
Side Marker.......................... 486
Transfer Case......................... 309
Transmission Warning................... 205Turn Signal..................133,199,474,478
Warning (Instrument Cluster Description)..... 198
Limited-Slip Differential................317,454
Loading Vehicle......................... 355
Tires ............................... 330
Locks................................. 25
Child Protection........................ 29
Door................................ 25
Keys................................ 12
Power Door........................... 26
Steering Wheel......................... 15
Lower Anchors and Tether for CHildren (LATCH) . 65
Lubrication, Body....................... 441
LugNuts ............................. 394
Lumbar Support........................ 118
Maintenance........................... 411
Maintenance Procedures................... 414
Maintenance Schedule..................494,511
542 INDEX