Page 77 of 440
Fluid Leaks
Check the area under vehicle after overnight parking for
fuel, water, oil, or other fluid leaks. Also, if gasoline
fumes are detected, the cause should be located and
corrected.
THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 77
2
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13. ABS Warning Light
This light monitors the Anti-Lock Brake System
which is described elsewhere in this manual.
This light will come on when the ignition key is
turned to the ON position and may stay on for
approximately 3 seconds. If this light remains on or
comes on during driving, it indicates that the Anti-Lock
portion of the brake system is not functioning and that
service is required. See your authorized dealer immedi-
ately. With the ABS malfunctioning, the BAS and ESP are
also switched off. Both malfunction indicator lights illu-
minate with the engine running. If the charging voltage
falls below 10 volts, the malfunction indicator light
illuminates and the ABS is switched off. When the
voltage is above this value again, the malfunction indi-
cator light should go out and the ABS is operational. If
the malfunction indicator light stays illuminated, have
the system checked at your authorized dealer as soon as
possible.14. Engine Oil Pressure Indicator Light
This light indicates that the engine oil pressure has
become too low. For a bulb check, this light will
come on momentarily when the ignition is turned On. If
the light turns on while driving, stop the vehicle and shut
off the engine as soon as possible. Immediate service
should be obtained.
15. Tachometer
This gauge measures engine revolutions-per-minute
(rpm x 1000).
16. Gear Selector
The electronic gear selector display is self-contained
within the instrument cluster. It displays the position of
the automatic transmission shift lever, and the relation of
each position to all other positions. For a good signal the
display will place a box around the selected transmission
186 INSTRUMENT PANEL AND CONTROLS
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Before raising the wheel off the ground, make sure that
the jack will not damage surrounding truck parts and
adjust the jack position as required.
4. By rotating the wheel wrench clockwise, raise the
vehicle until the wheel just clears the surface.
WARNING!
Raising the vehicle higher than necessary can make
the vehicle unstable and cause an accident. It could
slip off the jack and hurt someone near it. Raise the
vehicle only enough to remove the tire.
5. Remove the wheel nuts and pull the wheel off. Install
the spare wheel and wheel nuts with the cone shaped end
of the nuts toward the wheel. Lightly tighten the nuts. To
avoid risk of forcing the vehicle off the jack, do not fully
tighten the nuts until the vehicle has been lowered.
NOTE:Do not oil wheel studs. For chrome wheels, do
not substitute with chrome plated wheel nuts.
6. Using the wheel wrench, finish tightening the nuts in
a crisscross pattern. Correct nut tightness is 135 ± 10 ft.
lbs. (183 ± 14 N·m) dynamic torque. If in doubt about the
correct tightness, have them checked with a torque
wrench by your dealer or at a service station.
Rear Right Jacking Location
WHAT TO DO IN EMERGENCIES 323
6
Page 331 of 440
MAINTAINING YOUR VEHICLE
CONTENTS
Engine Compartment 3.7L V6..............334
Engine Compartment 4.7L V-8..............335
Engine Compartment 5.7L HEMI V-8.........336
Onboard Diagnostic System — OBD II........337
▫Loose Fuel Filler Cap Message............337
Emissions Inspection And Maintenance
Programs............................338
Replacement Parts......................339
Dealer Service.........................340Maintenance Procedures..................340
▫Engine Oil..........................340
▫Engine Oil Filter......................344
▫Drive Belts — Check Condition And
Tensioner...........................345
▫Spark Plugs.........................345
▫Ignition Cables.......................346
▫Engine Air Cleaner Filter................346
▫Engine Fuel Filter.....................346
7
Page 340 of 440

DEALER SERVICE
Your dealer has the qualified service personnel, special
tools and equipment to perform all service operations in
an expert manner. Service manuals are available which
include detailed service information for your vehicle.
Refer to these manuals before attempting any procedure
yourself.
NOTE:Intentional tampering with emissions control
systems can result in civil penalties being assessed
against you.
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 proper equipment. If you
have any doubt about your ability to perform a service
job, take your vehicle to a competent mechanic.
MAINTENANCE PROCEDURES
The pages that follow contain therequiredmaintenance
services determined by the engineers who designed your
vehicle.
Besides the maintenance items for which there are fixed
maintenance intervals, there are other items that should
operate satisfactorily without periodic maintenance.
However, if a malfunction of these items does occur, it
could adversely affect the engine or vehicle performance.
These items should be inspected if a malfunction is
observed or suspected.
Engine Oil
Checking Engine Oil Level
To assure proper lubrication of your vehicle’s engine, the
engine oil must be maintained at the correct level. The
best time to check the engine oil level is about 5 minutes
after a fully warmed up engine is shut off or before
starting the engine after it has sat overnight.
340 MAINTAINING YOUR VEHICLE
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Frequency Of Oil Change
Road conditions and your style of driving affect the
interval at which your oil should be changed. Check the
following to determine ifANYapply to you:
•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 (16.2 km).
•More than 50% of your driving is at sustained high
speeds during hot weather, above 90°F (32°C).
•Trailer towing, Taxi, Police or delivery service (com-
mercial 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.
If none of these apply to you, then change your engine oil
at every interval shown on scheduleAof theMainte-
nance Schedulessection of this manual.
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
342 MAINTAINING YOUR VEHICLE
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WARNING!
Fluid level should be checked on a level surface and
with the engine off to prevent injury from moving
parts and to insure 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. Refer to Fluids, Lubricants, and Genuine Parts
for correct fluid type.
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.
Drive Shaft Constant Velocity Joints
All four wheel drive models are equipped with four
constant velocity joints. Periodic lubrication of these
joints is not required. However, the joint boot should be
inspected for external leakage or damage periodically. If
external leakage or damage is evident, the joint boot and
grease should be replaced immediately. Continued op-
eration could result in failure of the joint due to water
and dirt contamination of the grease. This would require
complete replacement of the joint assembly. Refer to the
Service Manual for the detailed replacement procedure.
Body Lubrication
Locks and all body pivot points, including such items as
seat tracks, doors,liftgate and hood hinges, should be
lubricated periodically to assure quiet, easy operation
and to protect against rust and wear. Prior to the appli-
cation of any lubricant, the parts concerned should be
wiped clean to remove dust and grit; after lubricating
excess oil and grease should be removed. Particular
MAINTAINING YOUR VEHICLE 351
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attention should also be given to hood latching compo-
nents to insure proper function. When performing other
underhood services, the hood latch, release mechanism
and safety catch should be cleaned and lubricated.
The external lock cylinders should be lubricated twice a
year, preferably in the fall and spring. Apply a small
amount of a high quality lubricant such as MoparLock
Cylinder Lubricant directly into the lock cylinder.
Windshield Wiper Blades
The rubber edges of the wiper blades and the windshield
should be cleaned periodically with a sponge or soft cloth
and a mild nonabrasive cleaner. This will remove accu-
mulations of salt or road film.
Operation of the wipers on dry glass for long periods
may cause deterioration of the wiper blades. Always use
washer fluid when using the wipers to remove salt or dirt
from a dry windshield.Avoid using the wiper blades to remove frost or ice from
the windshield. Keep the blade rubber out of contact with
petroleum products such as engine oil, gasoline, etc.
Windshield Washers
The fluid reservoir should be checked for fluid level at
regular intervals. When freezing weather is anticipated,
flush out the water in the reservoir by operating the
system. Fill the reservoir with windshield washer anti-
freeze (not radiator antifreeze), and operate the system
for a few seconds to flush out the residual water.
To prevent freeze-up of your windshield washer system
in cold weather, select a solution or mixture that meets or
exceeds the temperature range of your climate. This
rating information can be found on most washer fluid
containers.
352 MAINTAINING YOUR VEHICLE