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should be performed anytime a malfunction is observed
or suspected. Proper maintenance of the entire vehicle
will help the effectiveness of the noise control systems.
Air Cleaner Assembly
Inspect air cleaner housing for proper assembly and fit.
Make certain that the air cleaner is properly positioned
and the cover is tight. Check all hoses leading to the
cleaner for tightness. The gasket between the air cleaner
housing and throttle body must be intact and in good
condition. The engine air cleaner filter must also be clean
and serviced according to the instructions outlined in the
appropriate maintenance schedule.
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 noisecontrol 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.
•Inverting the air cleaner lid.
•Removal of the air ducting.
EXHAUST SYSTEM
•Removal or rendering inoperative exhaust system
components including the muffler or tailpipe.
484 MAINTAINING YOUR VEHICLE
Page 518 of 568

EMISSION CONTROL SYSTEM MAINTENANCE
The “Scheduled” maintenance services, listed inbold
typein 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 – GAS ENGINES
There are two maintenance schedules that show the
requiredservice 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.
•Day or night temperatures are below 32° F (0° C).
•Stop and go driving.
•Extensive engine idling.
•Driving in dusty conditions.
•Short trips of less than 10 miles (16 km).
•More than 50% of your driving is at sustained high
speeds during hot weather, above 90° F (32°C).
•Trailer towing.
•Snowplowing.
518 MAINTENANCE SCHEDULES
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•Heavy Loading.
•Taxi, police, or delivery service (commercial service).
•Off-road or desert operation.
•If equipped for and operating with E-85 (ethanol)
fuel.
NOTE:IfANYof these apply to you then change your
engine oil every 3,000 miles (5 000 km) or 3 months,
whichever comes first and follow schedule “B” of the
Maintenance Schedulessection of this manual.
NOTE:IfANYof these apply to you then flush and
replace your engine coolant every 102,000 miles (170 000
km) or 60 months, whichever comes first and follow
schedule “B” of theMaintenance Schedulessection of
this manual.NOTE:Most vehicles are operated under the conditions
listed for ScheduleB.
Second is Schedule“A”. It is for vehicles that are not
operated under any of the conditions listed under Sched-
uleB.
Use the schedule that best describes your driving condi-
tions. Where time and mileage are listed, follow the
interval that occurs first.
NOTE:Under no circumstances should oil change in-
tervals exceed 6000 miles (10 000 km) or 6 months
whichever comes first.
CAUTION!
Failure to perform the required maintenance items
may result in damage to the vehicle.
MAINTENANCE SCHEDULES 519
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Schedule “B”
Follow schedule “B” if you usually operate your vehicle
under one or more of the following conditions.
•Day or night temperatures are below 32° F (0° C).
•Stop and go driving.
•Extensive engine idling.
•Driving in dusty conditions.
•Short trips of less than 10 miles (16 km).
•More than 50% of your driving is at sustained high
speeds during hot weather, above 90° F (32° C).
•Trailer towing.
•Snowplowing.
•Heavy Loading.
•Taxi, police, or delivery service (commercial service).
•Off-road or desert operation.
•If equipped for and operating with E-85 (ethanol)
fuel.
NOTE:IfANYof these apply to you then change your
engine oil every 3,000 miles (5 000 km) or 3 months,
whichever comes first and follow schedule “B” of the
Maintenance Schedulessection of this manual.
NOTE:IfANYof these apply to you then flush and
replace your engine coolant every 102,000 miles (170 000
km) or 60 months, whichever comes first and follow
schedule “B” of theMaintenance Schedulessection of
this manual.
NOTE:If none of these apply to you, then change your
engine oil at every interval shown on scheduleAof the
Maintenance Schedulessection of this manual.
SCHEDULE “B” 521
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Page 533 of 568
Miles 141,000 144,000 147,000 150,000
(Kilometers) (227 000) (232 000) (237 000) (241 000)
Drain and refill automatic transmission fluid and change
main sump and spin-on cooler return filter (if equipped)*.X
Flush and replace engine coolant if not replaced at
120,000 miles (193 000 km).X
* This applies only if the vehicle is used for frequent
trailer towing, snowplowing, fleet vehicle or commercial
service.
** This maintenance is recommended by the manufac-
turer to the owner, but not required to maintain the
emissions warranty.**** This maintenance is not required if the belt was
previously replaced.
Inspection and service should also be performed anytime
a malfunction is observed or suspected. Retain all re-
ceipts.
SCHEDULE “B” 533
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Page 539 of 568
Miles 126,000 132,000 138,000 144,000 150,000
(Kilometers) (203 000) (212 000) (222 000) (232 000) (241 000)
[Months] [126] [132] [138] [144] [150]
Inspect engine air cleaner filter, replace if neces-
sary.X
Replace spark plugs.X
Inspect PCV Valve, replace as necessary. **X
** This maintenance is recommended by the manufac-
turer to the owner, but not required to maintain the
emissions warranty.
**** This maintenance is not required if the belt was
previously replaced.
Inspection and service should also be performed anytime
a malfunction is observed or suspected. Retain all re-
ceipts.
WARNING!
You can be badly injured working on or around a
motor vehicle. Do only that service work for which
you have the knowledge and the right equipment. If
you have any doubt about your ability to perform a
service job, take your vehicle to a competent me-
chanic.
SCHEDULE “A” 539
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Page 559 of 568

Lug Nuts............................. 432
Lumbar Support........................ 152
Maintenance........................... 453
Maintenance Free Battery.................. 461
Maintenance Procedures................... 453
Maintenance Schedule.................... 518
Schedule “A”......................... 534
Schedule “B”......................... 521
Malfunction Indicator Light (Check Engine)..... 451
Manual, Service......................... 546
Manual Transmission...............312,314,479
Fluid Level Check...................... 479
Lubricant Selection..................479,515
Shift Speeds.......................... 314
Mirrors............................... 121
Automatic Dimming.................... 122
Electric Powered....................... 123
Outside............................. 122Rearview............................ 121
Trailer Towing.....................124,404
Modifications/Alterations, Vehicle............. 7
Mopar Parts.........................452,545
Multi-Displacement Engine System........... 357
Multi-Function Control Lever............... 169
Navigation Radio........................ 274
Navigation System....................... 274
Noise Control
Maintenance.......................... 483
Tampering Prohibited................483,484
Noise Emission Warranty.................. 485
Occupant Restraints.....................33,72
Occupant Restraints
(1500 Standard and Quad Cab Only)........... 33
Occupant Restraints (2500/3500/Mega Cab Only) . . 72
Octane Rating, Gasoline (Fuel).............. 380
INDEX 559
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