Page 382 of 479
MAINTAINING YOUR VEHICLE
CONTENTS
mEngine Compartment 4.7L V-8..............384
mEngine Compartment 5.7L HEMI V-8.........385
mOnboard Diagnostic System Ð OBD II........386
NLoose Fuel Filler Cap Message............386
mEmissions Inspection And Maintenance
Programs............................387
mReplacement Parts......................388
mDealer Service.........................389
mMaintenance Procedures..................389NEngine Oil..........................390
NEngine Oil Filter......................393
NDrive Belts Ð Check Condition And Tension . . 393
NSpark Plugs.........................394
NEngine Air Cleaner Filter................394
NEngine Fuel Filter.....................395
NCatalytic Converter....................395
NMaintenance Free Battery................396
NPower Steering Ð Fluid Check............398
7
Page 383 of 479

NAir Conditioner Maintenance.............398
NFront Suspension Ball Joints..............399
NDrive Shaft Constant Velocity Joints........400
NBody Lubrication.....................400
NWindshield Wiper Blades................400
NWindshield And Rear Window Washers.....401
NExhaust System......................401
NCooling System.......................402
NEmission Related Components............407
NBrake System........................408
NAutomatic Transmission................410
NTransfer Case........................413
NAxles..............................413NAppearance Care And Protection From
Corrosion...........................414
mFuse Block............................419
NFuses (Interior).......................420
NFuses (Power Distribution Center).........423
NFuses (Integrated Power Module)..........426
mVehicle Storage........................428
mReplacement Light Bulbs.................429
mBulb Replacement......................429
NHeadlights/Parking/Turn Signal..........429
NTail Lights, Turn Signals And Backup Lights Ð
Replacement.........................431
NLicense Lights........................433
NCenter High-Mounted Stoplight...........434
382 MAINTAINING YOUR VEHICLE
Page 392 of 479

Change Engine Oil
Follow the Maintenance Schedule for recommended en-
gine oil and filter change intervals.
NOTE:Under no circumstances should oil change in-
tervals exceed 6,000 miles (10 000 km) or 6 months,
whichever comes first.
4x4 Models, If Used Primarily For Off-Road Operation
Every 50 hours of use.
Dusty Conditions
Driving through dust-laden air increases the problems of
keeping abrasive materials out of the engine. Under these
conditions, special attention should be given to the
engine air cleaner and the crankcase inlet air cleaner. The
crankcase ventilation system should also be checked
periodically. Make sure that these units are always clean.
This will tend to reduce to a minimum the amount of
abrasive material that may enter the engine.
Engine Oil Selection
For best performance and maximum protection under all
types of operating conditions, the manufacturer only
recommends engine oils that are API certified and meet
the requirements of DaimlerChrysler Material Standard
MS-6395.
American Petroleum Institute (API) Engine Oil
Identification Symbol
This symbol means that the oil has
been certified by the American
Petroleum Institute (API). The
manufacturer only recommends
API Certified engine oils.
MAINTAINING YOUR VEHICLE 391
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Page 399 of 479

Power Steering Ð Fluid Check
Checking the power steering fluid level at a defined
service interval is not required. The fluid should only be
checked if a leak is suspected, abnormal noises are
apparent, and/or the system is not functioning as antici-
pated. Coordinate inspection efforts through an autho-
rized DaimlerChrysler dealership.
WARNING!
Fluid level should be checked on a level surface and
with the engine off to prevent injury from moving
parts and to ensure accurate fluid level reading. Do
not overfill. Use only manufacturers recommended
power steering fluid.If necessary, add fluid to restore to the proper indicated
level. With a clean cloth, wipe any spilled fluid from all
surfaces. For correct fluid type, refer to ºPower Steering
Reservoirº under ªFluids, Lubricants, and Genuine
Partsº in this section.
Air Conditioner Maintenance
For best possible performance, your air conditioner
should be checked and serviced by an authorized dealer
at the start of each warm season. This service should
include cleaning of the condenser fins and a performance
test. Drive belt tension should also be checked at this
time.
398 MAINTAINING YOUR VEHICLE
Page 400 of 479

WARNING!
²Use only refrigerants and compressor lubricants
approved by the manufacturer for your air condi-
tioning system. Some unapproved refrigerants are
flammable and can explode, injuring you. Other
unapproved refrigerants or lubricants can cause
the system to fail, requiring costly repairs. Refer to
Section 3 of the Warranty Information book for
further warranty information.
²The air conditioning system contains refrigerant
under high pressure. To avoid risk of personal
injury or damage to the system, adding refrigerant
or any repair requiring lines to be disconnected
should be done by an experienced technician.NOTE:Use only manufacturer approved A/C System
Sealers, Stop Leak Products, Seal Conditioners, Compres-
sor Oils and Refrigerants.
Refrigerant Recovery and Recycling
R-134a air conditioning refrigerant is a hydrofluorocar-
bon (HFC) that is endorsed by the Environmental Pro-
tection Agency and is an ozone-saving product. How-
ever, the manufacturer recommends that air conditioning
service be performed by authorized dealers or other
service facilities using recovery and recycling equipment.
Front Suspension Ball Joints
The ball joints and seals should be inspected whenever
the vehicle is serviced for other reasons. Damaged seals
should be replaced to prevent leakage or contamination
of the grease.
MAINTAINING YOUR VEHICLE 399
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²Do not overfill the coolant recovery bottle.
²Check coolant freeze point in the radiator and in the
coolant recovery bottle. If antifreeze needs to be
added, contents of coolant recovery bottle must also be
protected against freezing.
²If frequent coolant additions are required, or if the
level in the coolant recovery bottle does not drop when
the engine cools, the cooling system should be pres-
sure tested for leaks.
²Maintain coolant concentration at 50% HOAT engine
coolant (minimum) and distilled/deionized water for
proper corrosion protection of your engine which
contains aluminum components.
²Make sure that the radiator and coolant recovery
bottle overflow hoses are not kinked or obstructed.
²Keep the front of the radiator clean. If your vehicle is
equipped with air conditioning, keep the front of the
condenser clean, also.
²Do not change the thermostat for summer or winter
operation. If replacement is ever necessary, install
ONLY the correct type thermostat. Other designs may
result in unsatisfactory coolant performance, poor gas
mileage, and increased emissions.
Emission Related Components
Fuel System Hoses and Vapor/Vacuum Harnesses
When the vehicle is serviced for scheduled maintenance,
inspect surface of hoses and nylon tubing for evidence of
heat and mechanical damage. Hard and brittle rubber,
cracking, checking, tears, cuts, abrasions, and excessive
swelling suggest deterioration of the rubber. Particular
attention should be given to examining hose surfaces
nearest to high heat sources, such as the exhaust mani-
fold.
MAINTAINING YOUR VEHICLE 407
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Page 415 of 479

NOTE:The presence of water in the gear lubricant will
result in corrosion and possible failure of differential
components. Operation of the vehicle in water, as may be
encountered in some off-highway types of service, will
require draining and refilling the axle to avoid damage.
Rear Axle
Rear Axle fluid levels should be 7/8 in (22 mm) +/- 1/4
in (6 mm) below the fill hole for 8 1/4 in (21 cm) and 9
1/4 (23 cm) in axles should be 1 5/8 in (31 mm) +/- 1/4
in (6 mm)
Front Axle
Front axle fluid level should be 3/4 in (20 mm) +/- 1/4 in
(6 mm) below the level of the fill hole.
Appearance Care and Protection From Corrosion
Protection of Body and Paint from Corrosion
Vehicle body care requirements vary according to geo-
graphic locations and usage. Chemicals that make roads
passable in snow and ice, and those that are sprayed on
trees and road surfaces during other seasons, are highly
corrosive to the metal in your vehicle. Outside parking,
which exposes your vehicle to airborne contaminants,
road surfaces on which the vehicle is operated, extreme
hot or cold weather and other extreme conditions will
have an adverse effect on paint, metal trim, and under-
body protection.
The following maintenance recommendations will enable
you to obtain maximum benefit from the corrosion
resistance built into your vehicle.
What Causes Corrosion?
Corrosion is the result of deterioration or removal of
paint and protective coatings from your vehicle.
414 MAINTAINING YOUR VEHICLE
Page 441 of 479

EMISSION CONTROL SYSTEM MAINTENANCE
The ªScheduledº maintenance services, listed inbold
typeon the following pages, must be done at the times or
mileages specified to assure the continued proper func-
tioning 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 anytime 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 that has been
certified pursuant to U.S. EPA or, in the State of Califor-
nia, California Air Resources Board regulations.
MAINTENANCE SCHEDULE
The oil change indicator system will remind you that it is
time to take your vehicle in for scheduled maintenance.
On Electronic Vehicle Information Center (EVIC)
equipped vehicles ªOil Change Requiredº will be dis-
played in the EVIC and a single chime will sound,
indicating that an oil change is necessary.
On non-EVIC equipped vehicles ªChange Oilº will flash
in the instrument cluster odometer and a single chime
will sound, indicating that an oil change is necessary.
Based on engine operation conditions the oil change
indicator message will illuminate, this means that service
is required for your vehicle. Have your vehicle serviced
as soon as possible, within the next 500 mi (805 km).
NOTE:
²The oil change indicator message will not monitor the
time since the last oil change. Change your vehicle's
440 MAINTENANCE SCHEDULES
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