Page 418 of 496

or suspected. Proper maintenance of the entire vehicle
will help the effectiveness of the noise control systems.
Exhaust System
Inspect the entire exhaust system for leaks and damaged
parts. Devices such as hangers, clamps, and U-bolts
should be tight and in good condition. Damaged compo-
nents, burned or blown out mufflers, burned or rusted
out exhaust pipes should be replaced according to the
procedures and specifications outlined in the appropriate
service manual.
Air Cleaner Assembly
Inspect air cleaner housing for proper assembly and fit.
Make certain that the air cleaner is properly positioned
and that the cover is tight. Check all hoses leading to the
air cleaner for tightness. The air filter element must also
be clean and serviced according to the instructions out-
lined in the Maintenance Schedule Section of this
manual.Tampering With Noise Control System Prohibited
Federal law prohibits the following acts or the causing
thereof: (1) the removal or rendering inoperative by any
person, other than for purposes of maintenance, repair, or
replacement, of any device or element of design incorpo-
rated into any new vehicle for the purpose of noise
control prior to its sale or delivery to the ultimate
purchaser or while it is in use, or (2) the use of the vehicle
after such device or element of design has been removed
or rendered inoperative by any person.
Among those acts presumed to constitute tampering are
the acts listed below.
•AIR CLEANER
Removal of the air cleaner.
Removal of the air cleaner filter element from the air
cleaner housing.
Removal of the air ducting.
418 MAINTAINING YOUR VEHICLE
Page 449 of 496
MAINTENANCE SCHEDULES
CONTENTS
Emission Control System Maintenance ........450
Maintenance Schedules — 5.9L Cummins Turbo
Diesel ...............................450 ▫
Schedule “B” ........................453
▫ Schedule “A” ........................463
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EMISSION CONTROL SYSTEM MAINTENANCE
The “Scheduled” maintenance services, listed inbold
type in this section (Section 8) must be done at the times
or mileages specified to assure the continued proper
functioning of the emission control system. These, and all
other maintenance services included in this manual,
should be done to provide best vehicle performance and
reliability. More frequent maintenance may be needed for
vehicles in severe operating conditions such as dusty
areas and very short trip driving.
Inspection and service also should be done any time a
malfunction is suspected.
NOTE: Maintenance, replacement, or repair of the emis-
sion control devices and systems on your vehicle may be
performed by any automotive repair establishment or
individual using any automotive part which has been
certified pursuant to U.S. EPA or, in the State of Califor-
nia, California Air Resources Board regulations.
MAINTENANCE SCHEDULES — 5.9L CUMMINS
TURBO DIESEL
There are two maintenance schedules that show the
required service for your vehicle.
First is Schedule “B”. It is for vehicles that are operated
under one or more of the following conditions that are
listed below and at the beginning of the schedule.
•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).
450 MAINTENANCE SCHEDULES
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•Off-road or desert operation.
•Extensive operation at high engine speeds (greater
than 2900 rpm) and loads (greater than 70% throttle).
NOTE: Most vehicles are operated under the conditions
listed for Schedule B.
NOTE: IfANY of these apply to you then change your
coolant every 101,250 miles (162 000 km) or 60 months,
whichever comes first and follow schedule “B” of the
Maintenance Schedules section of this manual.
Second is Schedule “A”. It is for vehicles that are not
operated under any of the conditions listed under Sched-
ule B.
Use the schedule that best describes your driving condi-
tions. Where time and mileage are listed, follow the
interval that occurs first.
CAUTION!
Failure to perform the required maintenance items
may result in damage to the vehicle.
At Each Stop for Fuel
•Check the engine oil level about 15 minutes after a
fully warmed engine is shut off. Checking the oil level
while the vehicle is on level ground will improve the
accuracy of the oil level reading. Add oil only when
the level is at or below the ADD or MIN mark.
•Check the windshield washer solvent and add if
required. When refilling the washer fluid reservoir,
take some washer fluid and apply it to a cloth or towel
and wipe clean the wiper blades, this will help blade
performance.
MAINTENANCE SCHEDULES 451
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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.
•Drain water from the fuel filter. At Each Oil Change
•Change the engine oil filter.
•Inspect the exhaust system.
•Inspect the brake hoses.
•Inspect the U-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.
•Lubricate outer tie rod ends.
•Lubricate Front Drive Shaft Fittin
452 MAINTENANCE SCHEDULES
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Schedule “B”
Follow schedule “B” if you usually operate your vehicle
under one or more of the following conditions.
•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).
NOTE: IfANY of these apply to you then change your
coolant every 101,250 miles (162 000 km) or 60 months,
whichever comes first and follow schedule “B” of the
Maintenance Schedules section of this manual.
SCHEDULE “B” 453
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Turn Signal.................. 127,179,433,437
Warning (Instrument Cluster Description) ..... 179
Limited-Slip Differential ................287,412
Loading Vehicle ......................... 323
Tires ............................... 300
Locks ................................. 24
Child Protection ........................ 27
Door ................................ 24
Keys ................................ 12
Power Door ........................... 25
Steering Wheel ......................... 15
Lower Anchors and Tether for CHildren (LATCH) . 62
Lubricants ............................. 416
Lubrication, Body ....................... 399
Lug Nuts ............................. 361
Lumbar Support ........................ 112
Maintenance ........................... 380
Maintenance Procedures ................... 383 Maintenance Schedule
.................... 450
Schedule “A” ......................... 463
Manual, Service ......................... 474
Manual Transmission .................. 274,412
Fluid Level Check ...................... 412
Lubricant Selection ..................... 447
Mirrors ................................ 82
Automatic Dimming ..................... 83
Electric Powered ....................... 84
Outside .............................. 83
Rearview ............................. 82
Trailer Towing ...................... 85,339
Modifications/Alterations, Vehicle ............. 8
Mopar Parts ......................... 379,473
Multi-Function Control Lever ............... 127
Navigation Radio ........................ 225
Navigation System ....................... 225
New Vehicle Break-In Period ................ 71
486 INDEX