2005 DODGE RAM 2500 DIESEL oil pressure

Do Not Operate The Engine With Failed Parts
Practically all failures give some warning before the parts
fail. Be on the alert for changes in performance, sounds,
and visual evidence that the engine requires service.
Some important clues are:
•engine misfiring or vibrating severely
•sudden loss of power
•unusual engine noises
•fuel, oil or coolant leaks
•sudden change, outside the normal operating range, in
the engine operating temperature
•excessive smoke
•oil pressure drop
TRANSMISSION SHIFTING
Automatic Transmission with Overdrive— If
Equipped
The gear shift selector display, located in the instrument
panel cluster, indicates the transmission gear range (the
selector is illuminated for night driving). The selector
lever is mounted on the right side of the steering column.
You must depress the brake pedal, to pull the selector
lever out of park (P) position (Brake Interlock System). To
drive, move the selector lever from Park or Neutral to the
desired drive position. Pull the selector lever toward you
when shifting into Reverse, Second, First or Park, or
when shifting out of Park.
Gear Ranges
DO NOT race the engine when shifting from Park or
Neutral position into another gear range.
STARTING AND OPERATING 237
5

(SRW) models and 145 ft. lbs. (197 N·m) for 3500 dual rear
wheel models. If in doubt about the correct tightness,
have them checked with a torque wrench by your dealer
or at a service station.
WARNING!
A loose tire or jack thrown forward in a collision or
hard stop could injure someone in the vehicle.
Always stow the jack parts and the extra tire and
wheel in the places provided.
7. Install wheel center cap and remove wheel blocks. Do
not install chrome or aluminum wheel center caps on the
spare wheel. This may result in cap damage.
8. Lower the jack to its fully closed position. If the jack
will not lower by turning the dial (thumb wheel) byhand, it may be necessary to use the jack drive tube in
order to lower the jack. Stow the replaced tire, jack, and
tools as previously described.
9. Adjust the tire pressure when possible.
NOTE:Do not oil wheel studs. For chrome wheels, do
not substitute with chrome plated wheel nuts.
Hub Caps
The hub caps must be removed before raising the vehicle
off the ground.
For 2500/3500 single rear wheel (SRW) models, use the
blade on the end of the lug wrench to pry the cap off.
On 3500 models with dual rear wheels (DRW), you must
first remove the hub caps. The jack handle driver has a
hook at one end that will fit in the pry off notch of the
rear hub caps. Position the hook and pull out on the
ratchet firmly. The cap should pop off. The wheel skins
can now be removed. For the front hub cap on 3500
WHAT TO DO IN EMERGENCIES 323
6

•If an engine has been operating and the coolant is hot,
allow the engine to cool before you slowly loosen the
filler cap and relieve the pressure from the cooling
system.
•To avoid burns, remember that the engine components
will stay hot after the engine is shut off.
•Do not use gasoline or other flammable materials to
clean parts. Always use approved cleaning solvents.
•Relieve all pressure in the fuel, oil and cooling systems
before any lines, fittings or related items are removed
or disconnected. Be alert for possible pressure when
disconnecting any device from a system that utilizes
pressure. Do not check for pressure leaks with your
hand. High pressure oil or fuel can cause personal
injury.
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.
•Important:All maintenance other than that listed in
this manual, as well as some procedures listed here,
MUSTbe performed by your local Dodge Truck
Dealer. Your authorized Dodge Dealer has been
trained and has the necessary parts to maintain your
engine.
342 MAINTAINING YOUR VEHICLE

Never operate the engine with oil level below the “ADD”
mark or above the upper “SAFE” mark.
Change Engine Oil
CAUTION!
Overfilling or underfilling the crankcase will cause
oil aeration or loss of oil pressure. This could dam-
age your engine.
Road conditions as well as your kind of driving affect the
interval at which your oil should be changed. Check the
following to determine if any apply to you:
•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).
IfANYof these apply to you, then change your engine oil
at every interval shown in scheduleBof theMainte-
nance Schedulessection of this manual.
If none of these apply to you, then change your engine oil
at every interval shown on scheduleAof theMainte-
nance Schedulessection of this manual.
344 MAINTAINING YOUR VEHICLE

Once a Month
•Check tire pressure and look for unusual wear or
damage.
•Inspect the batteries and clean and tighten the termi-
nals as required.
•Check the fluid levels of coolant reservoir, brake
master cylinder, and transmission and transfer case (if
equipped), add as needed.
•Check Filter Minder™. Replace air cleaner filter
element if necessary.
•Check all lights and all other electrical items for correct
operation.At Each Oil Change
•Change the engine oil filter.
•Inspect the exhaust system.
•Inspect the brake hoses.
•Inspect the CV joints (if equipped) and front suspen-
sion components.
•Check the automatic transmission fluid level.
•Check the manual transmission fluid level.
•Check the coolant level, hoses, and clamps.
404 MAINTENANCE SCHEDULES
8
M
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A
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C
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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

Trailer Towing......................81,296
Modifications/Alterations, Vehicle............. 8
Mopar Parts.........................339,428
Multi-Function Control Lever............... 118
New Vehicle Break-In Period................ 67
Noise Control
Maintenance.......................... 375
Tampering Prohibited................... 376
Noise Emission Warranty...............374,376
Occupant Restraints....................... 33
Odometer..........................167,168
Trip .............................167,168
Off-Pavement Driving.................... 310
Off-Road Driving........................ 310
Oil, Engine............................ 398
Capacity............................ 397
Change Interval....................... 344Dipstick............................. 343
Disposal............................ 348
Filter.........................343,346,398
Pressure Gauge....................... 164
Recommendation...................... 345
Viscosity............................ 345
Oil Filter, Change........................ 346
Onboard Diagnostic System................ 339
Opener, Garage Door..................... 134
Operating Precautions.................... 339
Outside Rearview Mirrors.................. 79
Overhead Console....................127,128
Overhead Travel Information Center.......... 128
Owner’s Manual........................ 429
Parking Brake.......................... 255
Passenger Airbag On/Off Switch............. 51
Passing Light........................... 119
Pedals, Adjustable....................... 123
440 INDEX

Transfer Case......................... 246
Transfer Case, Shifting into Transfer
Case Neutral (N)..................303,306
Transfer Case, Shifting out of Transfer
Case Neutral (N)..................305,308
Shoulder Belt Upper Anchorage.............. 41
Shoulder Belts........................... 34
Side Airbag............................. 54
Signals, Turn........................... 118
Snow Chains (Tire Chains)................. 276
Snow Plow............................ 298
Snow Tires............................ 278
Spare Tire..........................272,273
Speed Control.......................... 124
Speedometer........................... 164
Starting............................... 224
Engine Block Heater.................224,231
Steering
Column Controls...................... 118Column Lock.......................... 14
Linkage............................. 357
Power...........................259,356
Wheel, Tilt........................... 122
Storage, Behind the Seat................... 147
Storage Compartment, Center Seat........... 147
Storage, Vehicle......................... 384
Storing Your Vehicle...................... 384
Sun Roof.............................. 140
Supplemental Tire Pressure Information........ 276
Synthetic Engine Oil...................... 233
Tachometer............................ 163
Tailgate............................... 153
Tether Anchor, Child Restraint.............60,63
Tilt Steering Column..................... 122
Tire and Loading Information Placard....264,265,276
Tire Identification Number (TIN)............. 263
Tire Markings.......................... 260
INDEX 443
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