Page 382 of 492
MAINTAINING YOUR VEHICLE
CONTENTS
mEngine CompartmentÐ 5.7L...............384
mOnboard Diagnostic System (OBD II).........385
NLoose Fuel Filler Cap Message............385
mEmissions Inspection And Maintenance
Programs............................386
mReplacement Parts......................387
mDealer Service.........................388
mMaintenance Procedures..................388
NEngine Oil..........................389NEngine Oil Filter......................392
NDrive Belts Ð Check Condition And Tension . . 393
NSpark Plugs.........................393
NSpark Plug Wires Ð If Equipped..........393
NEngine Air Cleaner Filter................393
NEngine Fuel Filter.....................394
NCatalytic Converter....................394
NEmission-Related Components............396
NMaintenance Free Battery................396
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Page 393 of 492

For information on engine oil filler cap location, see the
Engine Compartment illustration in this section.
Lubricants which do not have both, the engine oil certi-
fication mark and the correct SAE viscosity grade num-
ber should not be used.
Synthetic Engine Oils
You may use synthetic engine oils provided the recom-
mended oil quality requirements are met, and the recom-
mended maintenance intervals for oil and filter changes
are followed.
Materials Added to Engine Oil
The manufacture strongly recommends against the addi-
tion of any additives (other than leak detection dyes) to
the engine oil. Engine oil is an engineered product and
it's performance may be impaired by supplemental ad-
ditives.
Disposing of Used Engine Oil And Oil Filters
Care should be taken in disposing of used engine oil and
oil filters from your vehicle. Used oil and oil filters,
indiscriminately discarded, can present a problem to the
environment. Contact your dealer, service station, or
governmental agency for advice on how and where used
oil and oil filters can be safely discarded in your area.
Engine Oil Filter
The engine oil filter should be replaced at every engine
oil change.
Engine Oil Filter Selection
The manufacturer's engines have a full-flow type oil
filter. Use a filter of this type for replacement. The quality
of replacement filters varies considerably. Only high
quality filters should be used to assure most efficient
service. Mopar Engine Oil Filters are a high quality oil
filter and are recommended.
392 MAINTAINING YOUR VEHICLE
Page 394 of 492

Drive Belts Ð Check Condition and Tension
Belt tension is controlled by means of an automatic
tensioner. No belt tension adjustments are required.
However, belt and belt tensioner condition should be
inspected at the specified intervals and replaced if re-
quired. See your authorized dealer for service.
At the mileage indicated in the maintenance schedule, all
belts and tensioner should be checked for condition.
Improper belt tension can cause belt slippage and failure.
Belts should be inspected for evidence of cuts, cracks,
glazing or frayed cords and replaced if there is indication
of damage which could result in belt failure. Low gen-
erator belt tension can cause battery failure.
Also check belt routing to make sure there is no interfer-
ence between the belts and other engine components.
Spark Plugs
Spark plugs must fire properly to assure engine perfor-
mance and emission control. New plugs should be in-
stalled at the specified mileage. The entire set should be
replaced if there is any malfunction due to a faulty spark
plug, malfunctioning spark plugs can damage the cata-
lytic converter. For proper type of replacement spark
plugs, refer to the ªVehicle Emission Control Informa-
tionº label in the engine compartment.
Spark Plug Wires Ð IF Equipped
The spark plug wires should be kept clean and properly
connected. Terminals should be fully seated. Cracked,
damaged, or faulty wires should be replaced.
Engine Air Cleaner Filter
Under normal driving conditions, replace the air filter at
the intervals shown on Schedule ªAº. If, however, you
MAINTAINING YOUR VEHICLE 393
7
Page 395 of 492

drive the vehicle frequently under dusty or severe con-
ditions, the filter element should be inspected periodi-
cally and replaced if necessary at the intervals shown on
Schedule ªBº.
WARNING!
The air induction system (air cleaner, hoses, etc) can
provide a measure of protection in the case of engine
backfire. Do not remove the air induction system (air
cleaner, hoses, etc) unless such removal is necessary
for repair or maintenance. Make sure that no one is
near the engine compartment before starting the
vehicle with the air induction system (air cleaner,
hoses, etc) removed. Failure to do so can result in
serious personal injury.
Engine Fuel Filter
A plugged fuel filter can cause stalling, limit the speed at
which a vehicle can be driven or cause hard starting.
Should an excessive amount of dirt accumulate in the
fuel tank, frequent filter replacement may be necessary.
Catalytic Converter
The catalytic converter requires the use of unleaded fuel
only. Leaded gasoline will destroy the effectiveness of the
catalyst as an emission control device.
Under normal operating conditions, the catalytic con-
verter will not require maintenance. However, it is im-
portant to keep the engine properly tuned to assure
proper catalyst operation and prevent possible catalyst
damage.
394 MAINTAINING YOUR VEHICLE
Page 418 of 492

can be identified by the Noise Emission Control Label
located in the operator's compartment.Required Maintenance for Noise Control Systems
The following maintenance services must be performed
every 6 months or 6,000 miles (9 600 km), whichever
comes first, to assure proper operation of the noise
control systems. In addition, inspection and service
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.
MAINTAINING YOUR VEHICLE 417
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Page 451 of 492
Miles 3,000 6,000 9,000 12,000 15,000
(Kilometers) (5 000) (10 000) (14 000) (19 000) (24 000)
Change engine oil and engine oil filter, or at 3
months, whichever comes first.X X XXX
Lubricate Front Drive Shaft Fitting. X X X X X
Rotate tires. X X
Check spare tire for proper pressure and correct
stowage.XX
Lubricate tie rod end links. X X X X X
Change rear axle fluid.X
Change front axle fluid.X
Inspect brake linings.X
Inspect engine air cleaner filter, replace if neces-
sary.X
450 SCHEDULE ªBº
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Page 452 of 492
Miles 18,000 21,000 24,000 27,000 30,000
(Kilometers) (29 000) (34 000) (39 000) (43 000) (48 000)
Change engine oil and engine oil filter, or at 3
months, whichever comes first.X X XXX
Lubricate Front Drive Shaft Fitting. X X X X X
Rotate tires. X X X
Check spare tire for proper pressure and correct
stowage.XXX
Lubricate tie rod end links. X X X X X
Change rear axle fluid.X
Change front axle fluid.X
Check transfer case fluid level.X
Inspect brake linings. X
Inspect engine air cleaner filter, replace if neces-
sary.X
Replace spark plugs.X
Inspect PCV valve, replace as necessary.**X
SCHEDULE ªBº 451
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Page 453 of 492
Miles 33,000 36,000 39,000 42,000 45,000
(Kilometers) (53 000) (58 000) (63 000) (68 000) (72 000)
Change engine oil and engine oil filter, or at 3
months, whichever comes first.X X XXX
Lubricate Front Drive Shaft Fitting. X X X X X
Rotate tires. X X
Check spare tire for proper pressure and correct
stowage.XX
Lubricate tie rod end links. X X X X X
Change rear axle fluid.X
Change front axle fluid.X
Inspect brake linings. X
Inspect engine air cleaner filter, replace if neces-
sary.X
452 SCHEDULE ªBº
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