2004 JEEP LIBERTY timing belt

MAINTAINING YOUR VEHICLE
CONTENTS
m2.4L Engine...........................285
m3.7L Engine...........................286
mOnboard Diagnostic System Ð OBD II........287
mEmissions Inspection And Maintenance
Programs............................288
mReplacement Parts......................289
mDealer Service.........................289
mMaintenance Procedures..................290
NEngine Oil..........................290NDrive Belts Ð Check Condition And Tension . . 294
NSpark Plugs.........................295
NCatalytic Converter....................295
NEngine Timing Belt Ð 2.4L Engine.........297
NIgnition Wiring System Ð 2.4L Engine......297
NCrankcase Emission Control System........297
NAir Cleaner Filter.....................297
NMaintenance-Free Battery................298
NAir Conditioner Maintenance.............299
7

Engine Timing Belt Ð 2.4L Engine
Replace the engine timing belt at the intervals described
in the appropriate maintenance schedule.
Ignition Wiring System Ð 2.4L Engine
Replace the ignition cables at the intervals described in
the appropriate maintenance schedule.
Crankcase Emission Control System
Proper operation of this system depends on freedom
from sticking or plugging due to deposits. As vehicle
mileage builds up, the PCV valve and passages may
accumulate deposits. If a valve is not working properly,
replace it with a new valve. DO NOT ATTEMPT TO
CLEAN THE OLD PCV VALVE!
Check ventilation hose for indication of damage or
plugging deposits. Replace if necessary.
Air Cleaner Filter
Under normal driving conditions, replace the air filter at
the intervals shown on ªMaintenance Schedule A.º If,
however, you drive the vehicle frequently under dusty or
severe conditions, the filter element should be inspected
periodically and replaced if necessary at the intervals
shown on ªMaintenance Schedule B.º
WARNING!
The air cleaner can provide protection in the case of
engine backfire. Do not remove the air cleaner
unless it is necessary for repair or maintenance.
Make sure that no one is near the engine compart-
ment before starting the vehicle with the air cleaner
removed. Failure to do so can result in serious
personal injury.
MAINTAINING YOUR VEHICLE 297
7

Miles 78,000 81,000 84,000 87,000 90,000
(Kilometers) (125 000) (130 000) (134 000) (139 000) (144 000)
Change the engine oil and engine oil filter. X X 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.LX
Inspect the brake linings. X
Drain and refill the front and rear axle fluid³ X
Inspect the drive belt and replace as needed. Not
required if belt was previously replaced.X
Replace the timing belt (2.4L Only).X
Inspect the transfer case fluid, add if necessary. X
338 SCHEDULE ªBº
8
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A
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N
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A
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Miles 108,000 114,000 120,000
(Kilometers) (173 000) (182 000) (192 000)
[Months] [108] [114] [120]
Change the engine oil and engine oil filter. X X X
Inspect the brake linings. X
Inspect the engine air filter element, and replace if necessary.X
Replace the spark plugs.X
Inspect and replace the PCV valve, if necessary.LX
Inspect the ignition cables, and replace if necessary (2.4L Only).X
Inspect the drive belt and replace as needed. Not required if pre-
viously replaced.XX
Flush and replace the engine coolant if not done at 163 000 km
(102,000 miles).X
Replace the timing belt (2.4L Only). X
Drain and refill the transfer case fluid. X
Inspection and service should be performed anytime a
malfunction is observed or suspected. Retain all receipts.LThis maintenance is recommended by the manufac-
turer to the owner, but it is not required to maintain
emissions warranty.
346 SCHEDULE ªAº
8
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Jump Starting......................... 279
Tow Hooks.......................... 281
Emission Control System Maintenance......288,330
Engine
Air Cleaner.......................... 297
Block Heater......................... 212
Break-In Recommendations................ 68
Checking Oil Level..................... 290
Compartment......................285,286
Compartment Identification............285,286
Cooling............................. 303
Fails to Start.......................... 211
Flooded, Starting...................... 211
Fuel Requirements..................259,326
Jump Starting......................... 279
Malfunction Indicator................... 152
Oil ..............................290,326
Oil Change Interval.................... 292
Oil Disposal.......................... 294Oil Filter............................ 294
Oil Filter Disposal...................... 294
Oil Selection.......................293,326
Overheating.......................... 273
Starting............................. 210
Temperature Gauge..................... 153
Timing Belt.......................... 297
Engine Oil Viscosity Chart................. 293
Enhanced Accident Response Feature.......... 56
Entry System, Illuminated.................. 17
Exhaust Gas Caution...................... 68
Exhaust System......................... 302
Exterior Finish Care...................... 316
Filters
Air Cleaner.......................... 297
Engine Oil........................... 294
Finish Care............................ 316
362 INDEX

Steering
Power.............................. 300
Wheel Lock........................... 17
Wheel, Tilt........................... 107
Steering Wheel Mounted Sound System
Controls............................. 194
Storage............................... 324
Storage, Vehicle......................... 324
Storing Your Vehicle...................... 324
Sun Roof.............................. 130
Sunroof Maintenance..................... 132
Supplemental Restraint System - Airbag........ 46
Swing Gate, Rear......................... 29
Tachometer............................ 151
Tape Player............................ 178
Temperature Gauge, Engine Coolant.......... 153
Tether Anchor, Child Restraint............... 62
Theft System Arming...................... 28Theft System Disarming.................... 28
Tie Down Hooks, Cargo................... 138
Tilt Steering Column..................... 107
Timing Belt............................ 297
Tire and Loading Information Placard......... 244
Tire Identification Number (TIN)............. 243
Tire Markings.......................... 239
Tire Safety Information.................... 239
Tires ................................. 248
Air Pressure.......................... 249
Alignment and Balance.................. 253
Chains.............................. 257
Changing.........................274,275
Flat Changing........................ 274
General Information.................... 248
High Speed.......................... 250
Inflation Pressures..................... 249
Jacking............................. 276
Load Capacity.....................244,245
372 INDEX