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²In city traffic ÐWhile moving, shift into the highest
gear possible to reduce engine RPM.
NOTE:There are steps that you can take to slow down
an impending overheat condition. If your air conditioner
is on, turn it off. The air conditioning system adds heat to
the cooling system and turning off the A/C removes this
heat. You can also turn the Temperature control to
maximum heat, the Mode control to floor, and the fan
control to High. This allows the heater core to act as a
supplement to the radiator and aids in removing heat
from the cooling system.WARNING!
A hot cooling system is dangerous. You or others could
be badly burned by steam or boiling coolant. If your
temperature gauge pointer is in the red area, turn off
the engine immediately. You may want to call a service
center for service. If you decide to look under the hood
yourself, see Section 7 of this manual. Follow the
warnings under the Radiator Cap paragraph.
TIREFIT KIT
Small punctures in the tire tread can be sealed with
TIREFIT. Foreign objects (e.g., screws or nails) should not
be removed from the tire. TIREFIT can be used in outside
temperatures down to approximately -4ÉF (-20ÉC).
WHAT TO DO IN EMERGENCIES 177
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(B) Setting Up to Use TIREFIT:
Turn the Mode Select knob (4) to the Sealant/
Air Mode position.
1. Uncoil the Clear Sealant Hose (7) and then remove the
Yellow Cap from the fitting at the end of the hose.
2. Place the TIREFIT kit flat on the ground next to the
deflated tire.
3. Remove the cap from the valve stem and then screw
the fitting at the end of the Sealant Hose (7) onto the
valve stem.
4. Uncoil the Power Plug and Cable (5) and then insert
the plug into the vehicle's power outlet.
NOTE:Do not remove foreign objects (e.g., screws or
nails) from the tire.
(C)Injecting TIREFIT Sealant into the deflated tire:
1. Always start the engine before turning on the TIREFIT
kit.
2. After pressing the Air Pump Power Button
(3), the air pump should start to inflate the tire
and the sealant (white fluid) will flow from the
Sealant Bottle (1) through the Sealant Hose (7)
and into the tire.NOTE:Some sealant may leak out
through the puncture in the tire.
3.If the sealant Does Not Flow Through the Clear
Sealant Hose (7):
²Press the Air Pump Power Button (3) to turn off the
TIREFIT kit. Disconnect the Clear Sealant Hose (7)
from the valve stem. Make sure the valve stem is
free of debris. Reconnect the Clear Sealant Hose (7)
to the valve stem. Press the Air Pump Power Button
(3) to turn on the TIREFIT kit.
182 WHAT TO DO IN EMERGENCIES
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WARNING!
TIREFIT is not a permanent flat tire repair. Have the
tire inspected and repaired or replaced after using
TIREFIT. Do not exceed 55 mph (90 km/h) until
having the tire repaired or replaced. Failure to follow
this warning can result in injuries that are serious or
fatal to you, your passengers, and others around you.
(F) After Securing TIREFIT Sealant in the Tire:
Turn the Mode Select knob (4) to the Air Mode
position.
1. Uncoil the Black Air Pump Hose (6) and connect it to
the valve stem.2. Check the pressure in the tire by reading the Pressure
Gauge (2).
²If the pressure is less than 19 psi (1.3 bar), the tire is
too badly damaged. Do not attempt to drive the
vehicle further. Call for assistance.
²If the pressure is equal to or greater than 19 psi (1.3
bar), but less than the level indicated on the tire
pressure label, proceed to Step 4 of this procedure.
²If the pressure is at the level indicated on the tire
pressure label on the driver-side latch pillar, proceed
to Step 5 of this procedure.
3. Inflate the tire to the pressure indicated on the tire
pressure label on the driver-side latch pillar.
4. Disconnect the TIREFIT kit from the valve stem and
then reinstall the cap on the valve stem.
184 WHAT TO DO IN EMERGENCIES
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MAINTAINING YOUR VEHICLE
CONTENTS
m8.4L Engine Compartment................194
mOnboard Diagnostic System (OBD II).........195
mEmissions Inspection And Maintenance
Programs............................196
mReplacement Parts......................197
mDealer Service.........................198
mMaintenance Procedures..................198
NEngine Oil..........................198
NEngine Oil Filter......................201NDrive Belts Ð Check Condition And Tension . . 202
NSpark Plugs.........................203
NEngine Air Cleaner Filter................203
NFuel Filter..........................204
NCatalytic Converter....................204
NIgnition Wiring System And Ignition
Timing.............................205
NCrankcase Emission Control System........206
NMaintenance-Free Battery................206
7
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DEALER SERVICE
Your authorized dealer has the qualified service person-
nel, 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. Only do 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 the maintenance service
recommendations by the engineers who designed your
vehicle.
Besides the maintenance items for which there are fixed
maintenance intervals, there are other items, which
should operate satisfactorily without periodic mainte-
nance. 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 mal-
function is observed or suspected.
Engine Oil
Checking Oil Level
To assure proper engine lubrication, the engine oil must
be maintained at the correct level. Check the oil level at
regular intervals, such as every fuel stop.
198 MAINTAINING YOUR VEHICLE
Page 200 of 303
The best time to check the oil level is approximately 5
minutes after a fully warmed engine is turned off or
before starting the engine after it has sat overnight.
Checking the oil while the vehicle is on level ground also
will improve the accuracy of the oil level readings. Add
oil only when the level is below the SAFE mark.CAUTION!
Overfilling or underfilling will cause oil aeration or
loss of oil pressure. This could damage your engine.
Change Engine Oil
Road conditions and your kind of driving affect the
interval at which your oil should be changed. Check the
following list to see if any apply to you.
²Day or night temperatures are below 32ÉF (0ÉC)
²Stop and go driving
²Extensive engine idling
²Driving in dusty conditions
²Short trip driving of less than 10 miles (16.2 km)
Engine Oil Dipstick
MAINTAINING YOUR VEHICLE 199
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²More than 50% of your driving is at sustained high
speeds during hot weather, above 90ÉF (32ÉC)
²Trailer towing
²Taxi, Police, or delivery service (commercial service)
²Off-road or desert driving
²If 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 ªBº in the
9Maintenance Schedules9in this manual.
If none of these applies to you, then change your engine
oil at every interval shown on schedule9A9in the
9Maintenance Schedules9in this manual.
NOTE:Under no circumstances should oil change in-
tervals exceed 6,000 miles (10 000 km) or 6 months,
whichever comes first.
Engine Oil Selection
For best performance and maximum protection under all
types of operating conditions, the manufacturer only
recommends full synthetic engine oils that meet the
American Petroleum Institute (API) categories of SM or
SM/CF, and meet the requirements of DaimlerChrysler
Material Standard MS-10725.
The manufacturer recommends the use of a full synthetic
engine oil, such as Mobil 1tSAE 0W-40 or equivalent.
Engine Oil Viscosity (SAE Grade)
The proper SAE viscosity grade of engine oil should be
selected based on the following recommendation and be
within the operating temperature shown in the engine oil
viscosity chart.
200 MAINTAINING YOUR VEHICLE
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The engine oil filler cap also shows the recommended
engine oil viscosity for your engine. For information on
engine oil filler cap location, refer to the ªEngine Com-
partmentº illustration in this section.
Materials Added to Engine Oil
The manufacture strongly recommends against the addi-
tion of any additives (other than leak detection dyes) tothe engine oil. Engine oil is an engineered product and its
performance may be impaired by supplemental addi-
tives.
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 with a new filter
at every engine oil change.
Engine Oil Filter Selection
This 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
MAINTAINING YOUR VEHICLE 201
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