Page 303 of 424
MAINTAINING YOUR VEHICLE
CONTENTS
2.4L Engine...........................306
3.7L Engine...........................307
2.8L Turbo Diesel Engine.................308
Onboard Diagnostic System — OBD II........309
▫Loose Fuel Filler Cap Message............309
Emissions Inspection And Maintenance
Programs............................310
Replacement Parts......................311
Dealer Service.........................312Maintenance Procedures..................312
▫Engine Oil..........................312
▫Drive Belts — Check Condition And Tension . . 316
▫Spark Plugs.........................317
▫Catalytic Converter....................317
▫Engine Timing Belt — 2.4L Engine.........319
▫Ignition Wiring System — 2.4L Engine......319
▫Crankcase Emission Control System........319
▫Air Cleaner Filter.....................319
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Disposing of Used Engine Oil
Care should be taken in disposing of used engine oil from
your vehicle. Used oil and oil filters, indiscriminately
discarded, can present a problem to the environment.
Contact your authorized dealer, service station, or gov-
ernmental agency for advice on how and where used oil
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
All of the manufacturer’s engines have a full-flow type
disposable oil filter. Use a filter of this type for replace-
ment. The quality of replacement filters varies consider-
ably. Only high quality filters should be used to assure
most efficient service. Moparengine oil filters are high
quality oil filters and are recommended.
Drive Belts — Check Condition and Tension
At the mileage shown in the appropriate “Maintenance
Schedule,” check all drive belts for condition and proper
tension. Improper belt tension can cause belt slippage
and failure.
Inspect the drive belt for evidence of cuts, cracks, or
glazing and replace them if there is any sign of damage
which could result in belt failure. If adjustment is re-
quired, adjust the belts according to the specifications
and procedures shown in the Service Manual.
Special tools are required to properly measure tension
and to restore belt tension to factory specifications. Also,
check belt routing to make sure there is no interference
between the belts and other engine components.
316 MAINTAINING YOUR VEHICLE
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FLUID CAPACITIES
U.S. Metric
Fuel (Approximate)20.5 Gallons 78 Liters
Engine Oil with Filter
2.4/3.7 Liter Engines (SAE 5W-30, API Certified Engine Oil) 5 Qts 4.7 Liters
2.8 Liter Diesel Engine (SAE 0W-40 Mobil 1Synthetic, API
Certified Engine Oil)6.4 Qts 6.1 Liters
Cooling System *
2.4 Liter Engine (MoparAntifreeze/Coolant 5 Year/100,000
Mile Formula)10 Qts 9.5 Liters
3.7 Liter Engine (MoparAntifreeze/Coolant 5 Year/100,000
Mile Formula)14 Qts 13.2 Liters
2.8 Liter Diesel Engine (MoparAntifreeze/Coolant 5 Year/
100,000 Mile Formula)11.8 Qts 12.5 Liters
* Includes heater and coolant recovery bottle filled to MAX level.
356 MAINTAINING YOUR VEHICLE
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RECOMMENDED FLUIDS, LUBRICANTS AND GENUINE PARTS
Engine
Component Fluid, Lubricant, or Genuine Part
Engine Coolant MoparAntifreeze/Coolant 5 Year/100,000 Mile Formula HOAT (Hybrid Or-
ganic Additive Technology)
Engine Oil (2.4L and 3.7L Engines) Use API Certified SAE 5W-30 Engine Oil, meeting the requirements of
DaimlerChrysler Material Standard MS-6395.
Engine Oil (2.8L Diesel Engines) Use API Certified SAE 0W-40 Mobil 1Synthetic Engine Oil that meets API
Categories SL/CF, and the requirements of DaimlerChrysler Material Stan-
dard MS-10725. If SAE 0W-40 is not available, SAE 5W-40 Mobil 1Synthetic
Engine Oil is acceptable.
Oil Filter (2.4L Engine) MoparOil Filter (P/N 4105409 or 4105409AB)
Oil Filter (3.7L Engine) MoparOil Filter (P/N 4781452AA or 4781452BB)
Oil Filter (2.8L Diesel Engine) MoparOil Filter (P/N 05072720AA)
Spark Plugs Refer to the Vehicle Emission Control Information label in the engine com-
partment.
Fuel Selection (Gasoline Engines
Only)87 Octane (89 Octane should be used for trailer towing purposes - 3.7L
Only).
MAINTAINING YOUR VEHICLE 357
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Page 362 of 424

At Each Stop for Fuel
•Check the engine oil level about 5 minutes after a fully
warmed engine is shut off. Checking the oil level while
the vehicle is on level ground will improve the accu-
racy of the oil level reading. Add oil only when the
level is at or below the ADD or MIN mark.
•Check the windshield washer solvent, add as required.
Once a Month
•Check the tire pressure and look for unusual wear or
damage.
•Inspect the battery, and clean and tighten the terminals
as required.
•Check the fluid levels of the engine coolant/anti-
freeze reservoir, brake master cylinder, and transmis-
sion, and add as needed.
•Check all lights and all other electrical items for correct
operation.
At Each Oil Change
•Change the engine oil filter.
•Inspect the exhaust system.
•Inspect brake hoses.
•Check the engine coolant/anti-freeze level, hoses, and
clamps.
•Inspect manual transmission fluid level, and for leaks
(if equipped).
•After completion of off-road operation, the underside
of the vehicle should be thoroughly inspected. Exam-
ine threaded fasteners for looseness.
362 MAINTENANCE SCHEDULES
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Miles 3,000 6,000 9,000 12,000 15,000
(Kilometers) (5 000) (10 000) (14 000) (19 000) (24 000)
Change the engine oil and engine oil filter, if not
replaced at 3 months.X X XXX
Rotate the tires. X X
Inspect the engine air filter element, replace if
necessary.X
Inspect the brake linings. X
Drain and refill the front and rear axle fluid‡ X
364 SCHEDULE “B” — GASOLINE ENGINES
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Miles 18,000 21,000 24,000 27,000 30,000
(Kilometers) (29 000) (34 000) (38 000) (43 000) (48 000)
Change the engine oil and engine oil filter, if not
replaced at 3 months.X X XXX
Rotate the tires. X X X
Inspect the engine air filter element, replace if
necessary.X
Replace the spark plugs.X
Inspect and replace the PCV valve, if necessary. X
Inspect the brake linings. X
Drain and refill the front and rear axle fluid‡ X
Inspect the transfer case fluid, add if necessary. X
SCHEDULE “B” — GASOLINE ENGINES 365
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Miles 33,000 36,000 39,000 42,000 45,000
(Kilometers) (53 000) (58 000) (62 000) (67 000) (72 000)
Change the engine oil and engine oil filter, if not
replaced at 3 months.X X XXX
Rotate the tires. X X
Inspect the engine air filter element, replace if
necessary.X
Inspect the brake linings. X
Drain and refill the front and rear axle fluid‡ X
Inspect the drive belt and replace as needed. X
366 SCHEDULE “B” — GASOLINE ENGINES
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