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ONBOARD DIAGNOSTIC SYSTEM—OBD II
Your vehicle is equipped with a sophisticated onboard
diagnostic system called OBD II. This system monitors
the performance of the emissions, engine, and automatic
transmission control systems. When these systems are
operating properly, your vehicle will provide excellent
performance and fuel economy, as well as engine emis-
sions well within current government regulations.
If any of these systems require service, the OBD II system
will turn on the“Malfunction Indicator Light.”It will
also store diagnostic codes and other information to
assist your service technician in making repairs. Al-
though your vehicle will usually be drivable and not
need towing, see your dealer for service as soon as
possible.CAUTION!
Prolonged driving with the“Malfunction Indicator
Light”on could cause further damage to the emis-
sion control system. It could also affect fuel economy
and driveability. The vehicle must be serviced before
any emissions tests can be performed.
If the“Malfunction Indicator Light”is flashing
while the engine is running, severe catalytic con-
verter damage and power loss will soon occur. Im-
mediate service is required.
288 MAINTAINING YOUR VEHICLE
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CAUTION!
Do not allow petroleum base fluid to contaminate
the brake fluid, all brake seal components could be
damaged causing partial or complete brake failure.
Fuel System Hoses
Electronic Fuel Injection high pressure fuel systems are
designed with hoses and quick connect fittings which
have unique material characteristics to provide adequate
sealing and resist attack by deteriorated gasoline.
You are urged to use only the manufacture specified
hoses with quick connect fittings, or their equivalent in
material and specification, in any fuel system servicing. It
is mandatory to replace any damaged hoses or quick
connect fittings that have been removed during service.
Care should be taken in installing quick connect fittings
to insure they are properly installed and fully connected.
See your authorized dealer for service.
Automatic Transmission
Fluid Level Check
Regular automatic transmission fluid level checks are not
required. For this reason the dipstick is omitted.
If you notice fluid loss or gear shift malfunction, have
your authorized dealer check the transmission fluid level.
CAUTION!
Using a transmission fluid other than the manufac-
turer’s recommended fluid may cause deterioration
in transmission shift quality and/or torque converter
shudder. Using a transmission fluid other than that
recommended by the manufacturer will result in
more frequent fluid and filter changes. Refer to the
Fluids, Lubricants and Genuine Parts section for
correct fluid type.
312 MAINTAINING YOUR VEHICLE
Page 313 of 376

CAUTION!
The fluid level is preset at the factory and does not
require adjustment under normal operating condi-
tions. If a transmission fluid leak occurs, visit your
authorized dealer immediately. Severe damage to the
transmission may occur. Your authorized dealer has
the proper tools to accurately adjust the fluid level.
Fluid and Filter Changes
Automatic transmission fluid and filter should be
changed as follows:
Normal Usage—No change necessary
Severe Usage (fluid and filter)—Refer to Maintenance
Schedule“B”
Severe Usage is defined as:
•Police, taxi, limousine, commercial type operation, or
trailer towing where the vehicle is drivenregularlyfor
more than 45 minutes of continuous operation.If the transmission is disassembled for any reason, the
fluid and filter should be changed.
All Wheel Drive (AWD)—If Equipped
The all wheel drive system consists of a Transfer Case,
and Front Differential. The exterior surface of these
components should be inspected for evidence of fluid
leaks. Confirmed leaks should be repaired as soon as
possible.
The transfer case fill plug is located on the rear housing
near the output shaft. The level can be verified by the
service plug in the middle of the rear housing, even with
the bottom of the hole. The front differential fill plug is on
the outer cover near the halfshaft attachment. The level
can be verified by removing the plug and inspecting the
level. The level should be even with or slightly below the
bottom of the hole.
MAINTAINING YOUR VEHICLE 313
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Page 333 of 376
Chassis
Component Fluids, Lubricants and Genuine Parts
Automatic Transmission MoparATF+4 Automatic Transmission Fluid or equivalent.
Brake Master Cylinder MoparDOT 3, SAE J1703 should be used. If DOT 3, SAE J1703 brake
fluid is not available, then DOT 4 is acceptable. Use only recommended
brake fluids.
Power Steering Reservoir MoparPower Steering Fluid + 4, MoparATF+4 Automatic Transmission
Fluid or equivalent.
Rear Axle API Certified GL-5 SAE 75W140 Synthetic Gear Lubricant or equivalent.
Transfer Case MoparTransfer Case Lubricant LX, P/N 05170055EA, or equivalent.
Front Axle API Certified GL-5 SAE 75W90 Gear Lubricant or equivalent.
MAINTAINING YOUR VEHICLE 333
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Page 336 of 376

EMISSION CONTROL SYSTEM MAINTENANCE
The“Scheduled”maintenance services, listed inbold
typemust 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 main-
tenance 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
emission control devices and systems on your vehicle
may be performed by any automotive repair establish-
ment or individual using any automotive part which has
been certified pursuant to U.S. EPA or, in the State of
California, California Air Resources Board regulations.
MAINTENANCE SCHEDULES
NOTE:
•
For 2.7L engines with Federal Certified Emission Con-
trol Systems, and all 6.1L engines, follow Schedule“A”
from 0 to 102,000 miles, or Schedule“B”from 0 to
105,000 miles.
•For 2.7L engines with California Certified Emission
Control Systems, and all 3.5L and 5.7L engines follow
Schedule“A”
or“B”from 0 to 120,000 miles.
There are two maintenance schedules that show the
requiredservice for your vehicle.
First is Schedule“B.”It is for vehicles that are operated
under the conditions that are listed below and at the
beginning of the schedule.
Change the automatic transmission fluid and filter every
60,000 miles (100 000 km) if the vehicle is usually
operated under one or more of the conditions marked
with an.
•Day or night temperatures are below 32°F(0°C).
•Stop and go driving.
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SCHEDULE“B”
Follow Schedule“B”if you usually operate your vehicle
under one or more of the following conditions. Change
the automatic transmission fluid and filter every 60,000
miles (100 000 km) if the vehicle is usually operated
under one or more of the conditions marked with an.
•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 (commercial ser-
vices).
•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 the maintenance rec-
ommendations in Schedule“B”in this section.
NOTE:IfANYof these apply to you, then flush and
replace the engine coolant every 102,000 miles (170 000
km) or 60 months, whichever comes first, and follow the
maintenance recommendations in Schedule“B”in this
section.
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Page 343 of 376
Miles 57,000 60,000 63,000 66,000 69,000 72,000
(Kilometers) (95 000) (100 000) (105 000) (110 000) (115 000) (120 000)
Change engine oil and engine oil filter, if not
replaced at 3 months.XXXXX X
Inspect theair cleaner filterand replace if re-
quired.*X XXX X
Replace theair cleaner filter.X
Replace thespark plugs.5.7L Engine. X
Inspect the front and rear brake linings and
rotors.XX
Check and Inspect the accessory drive belt
and tensioner. Replace if required.X
Check and replace, if necessary, thePCV
valve.*‡X
Change the automatic transmission fluid and
filter.X
Replace the air conditioning filter. X X
Flush and replace engine coolant at 60 months
if not done at 102,000 miles.X
Rotate the tires. X X X
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Page 346 of 376

Miles 108,000 111,000 114,000 117,000 120,000
(Kilometers) (180 000) (185 000) (190 000) (195 000) (200 000)
Change engine oil and engine oil filter, if not re-
placed at 3 months.XXXXX
Inspect theair cleaner filterand replace if re-
quired.*XXXX
Replace theair cleaner filter.X
Inspect the front and rear brake linings and rotors. X X
Replace thespark plugs.5.7L Engine. X
Check and replace, if necessary, thePCV valve.*X
Change the automatic transmission fluid and filter. X
Replace the air conditioning filter. X X
Flush and replace the engine coolant at 120 months,
if not replaced at 102,000 miles.X
Rotate the tires. X X X
* This maintenance is recommended by the manufacture
to the owner but is not required to maintain the emis-
sions warranty.
‡This maintenance is not required if previously replaced.Inspection and service should also be performed anytime
a malfunction is observed or suspected. Retain all re-
ceipts.
346 SCHEDULE“B”
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