2004 JEEP WRANGLER engine

Miles 36,000 42,000 48,000 54, 000
(Kilometers) (58 000) (67 000) (77 000) (86 000)
[Months] [36] [42] [48] [54]
Change the engine oil and engine oil filter. X X X X
Lubricate the steering and suspension ball joints. X X
Lubricate the steering linkage joints and outer tie rod
ends.XXXX
Inspect the brake linings. X X
SCHEDULE ªAº 275
8
M
A
I
N
T
E
N
A
N
C
E
S
C
H
E
D
U
L
E
S

Miles 60,000 66,000 72,000 78,000
(Kilometers) (96 000) (106 000) (115 000) (125 000)
[Months] [60] [66] [72] [78]
Change the engine oil and engine oil filter. X X X X
Inspect the engine air filter element, and replace if nec-
essary.X
Inspect the PCV Valve, and replace if necessary.LX
Replace the ignition cables (2.4L Only).X
Replace the spark plugs.X
Lubricate the steering linkage joints and outer tie rod
ends.XXXX
Lubricate the steering and suspension ball joints. X X
Inspect the brake linings. X
Inspect the drive belt, and replace as needed. X
Inspect the drive belt, and replace as needed. Not re-
quired if belt was previously replaced.X
Flush and replace the engine coolant at 60 months, re-
gardless of mileage.X
Inspect transfer case fluid. X
276 SCHEDULE ªAº
8
M
A
I
N
T
E
N
A
N
C
E
S
C
H
E
D
U
L
E
S

Miles 84,000 90,000 96,000 102, 000
(Kilometers) (134 000) (144 000) (154 000) (163 000)
[Months] [84] [90] [96] [102]
Change the engine oil and engine oil filter. X X X X
Inspect the engine air filter element, and replace if nec-
essary.X
Inspect the PCV Valve, and replace if necessary.LX
Replace the spark plugs.X
Lubricate the steering linkage joints and outer tie rod
ends.XXXX
Lubricate the steering and suspension ball joints. X X
Inspect the brake linings. X
Inspect the drive belt, and replace as needed. Not re-
quired if previously replaced.XX
Flush and replace the engine coolant if not done at 60
months.X
Inspect the transfer case fluid. X
SCHEDULE ªAº 277
8
M
A
I
N
T
E
N
A
N
C
E
S
C
H
E
D
U
L
E
S

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 engine air filter element, and replace if necessary.X
Replace the ignition cables (2.4L Only).X
Inspect the PCV Valve, and replace if necessary.LX
Replace the spark plugs.X
Lubricate the steering linkage joints and outer tie rod ends. X X X
Lubricate the steering and suspension ball joints. X X
Inspect the brake linings. X
Replace the timing belt (2.4L Only). X
Inspect the drive belt, and replace as needed. Not required if pre-
viously replaced.X
Drain and refill the transfer case fluid. X
Inspection and service should also be performed anytime
a malfunction is observed or suspected. Retain all re-
ceipts.LThis maintenance is recommended by the manufac-
turer to the owner, but is not required to maintain
emissions warranty.
278 SCHEDULE ªAº
8
M
A
I
N
T
E
N
A
N
C
E
S
C
H
E
D
U
L
E
S

PUBLICATION ORDER FORMS
To order the following manuals, you may use either the
website or the phone numbers listed below. Visa, Mas-
tercard, American Express, and Discover orders are ac-
cepted. If you prefer mailing your payment, please call
for an order form.
NOTE:A street address is required when ordering
manuals. (No P.O. Boxes).
²Service Manuals.
These comprehensive service manuals provide the
information that students and professional technicians
need in diagnosing/troubleshooting, problem solving,
maintaining, servicing and repairing DaimlerChrysler
Corporation vehicles. A complete working knowledge
of the vehicle, system and/or components is written in
straightforward language with illustrations, diagrams
and charts.
²Diagnostic Procedure Manuals.
Filled with diagrams, charts and detailed illustrations,
these practical manuals make it easy for students andtechnicians to find and fix problems on computer-
controlled vehicle systems and features. They show
exactly how to find and correct problems the first time,
using step-by-step troubleshooting and driveability
procedures, proven diagnostic tests and a complete list
of all tools and equipment.
²Owner's Manuals.
These manuals have been prepared with the assistance
of service and engineering specialists to acquaint you
with specific Chrysler group vehicles. Included are
starting, operating, emergency and maintenance pro-
cedures as well as specifications, capabilities and
safety tips.
Call Toll Free at1±800±890±4038 (U.S.)or1±800±387±1143
(Canada)
Or
Visit us on the World Wide Web at:
www.techauthority.daimlerchrysler.comor
www.daimlerchrysler.ca/manuals
IF YOU NEED CONSUMER ASSISTANCE 285
9

About Your Brakes...................... 177
Add-A-Trunk........................... 65
Adding Washer Fluid.................... 155
Air Cleaner, Engine..................... 234
Air Conditioner Maintenance.............. 235
Air Conditioning....................... 151
Air Conditioning Controls................ 152
Air Conditioning, Operating Tips........... 154
Air Conditioning Refrigerant.............. 236
Air Filter............................. 234
Air Pressure, Tires...................... 192
Airbag................................ 22
Airbag Deployment...................... 27
Airbag Light........................29,118
Airbag Maintenance...................... 29
Airbag On/Off Switch.................... 26
Alignment and Balance.................. 195
Alterations/Modifications, Vehicle............ 8
Antenna, Satellite Radio.................. 147
Antifreeze (Engine Coolant)............... 258
Anti-Lock Brake System.................. 179
Anti-Lock Warning Light................. 119
Appearance Care....................... 248Ashtray............................... 62
Ashtrays and Lighter..................... 62
Automatic Dimming Mirror................ 46
Automatic Transmission...............165,245
Adding Fluid........................ 246
Fluid and Filter Changes................ 245
Fluid Level Check..................... 245
Fluid Type.......................... 245
Gear Ranges......................... 166
Shifting............................ 165
Special Additives..................... 246
Torque Converter..................... 170
Auxiliary Electrical Outlet................. 63
Auxiliary Power Outlet................... 63
Battery............................... 234
Emergency Starting.................... 216
Voltmeter........................... 116
Belts, Drive........................... 231
Belts, Seat............................. 17
Body Mechanism Lubrication.............. 237
Brake System.......................... 243
Anti-Lock........................... 179
288 INDEX

Hoses.............................. 243
Master Cylinder...................... 244
Parking............................ 175
Warning Light....................... 119
Brakes............................... 177
Brake/Transmission Interlock.............. 166
Break-In Recommendations, New Vehicle...... 39
Bulb Replacement...................... 257
Calibration, Compass..................... 47
Capacities, Fluid....................... 258
Caps, Filler
Fuel............................... 200
Power Steering....................... 236
Car Washes........................... 249
Carpeting............................. 252
Cassette Tape and Player Maintenance....... 148
Cassette Tape Player.........126,130,132,140,142
Catalytic Converter..................... 232
Caution, Exhaust Gas..................... 40
CD Changer........................133,138
CD Player......................128,135,137
CD Player Maintenance.................. 149Cellular Phone......................... 149
Chains, Tire........................... 196
Changing A Flat Tire.................... 213
Chart, Tire Sizing....................... 185
Check Engine Light..................... 118
Child Restraint.....................29,33,36
Child Restraint Tether Anchors............. 33
Cigar Lighter........................... 62
Climate Control........................ 149
Clock................................ 120
Clutch Interlocking Ignition System......160,165
Compact Disc Maintenance............... 149
Compact Disc Player.................... 140
Compass.............................. 46
Compass Calibration..................... 47
Compass Variance....................... 48
Console............................... 65
Console, Floor.......................... 65
Contract, Service....................... 282
Converter, Catalytic..................... 232
Cooling System........................ 239
Adding Coolant (Antifreeze)............. 241
Coolant Capacity..................... 258
INDEX 289
10

Coolant Level........................ 241
Disposal of Used Coolant............... 240
Drain, Flush, and Refill................. 239
Inspection........................... 239
Points to Remember................... 242
Pressure Cap........................ 241
Selection of Coolant................240,258
Temperature Gauge.................... 118
Corrosion Protection.................... 248
Crankcase Emission Control System......... 234
Cruise Control.......................... 60
Cruise Light........................... 116
Cup Holder............................ 64
Customer Assistance.................... 280
Daytime Running Lights.................. 58
Dealer Service......................... 227
Defroster, Rear Window.................. 154
Defroster, Windshield.................151,153
Delay Wipers........................... 58
Deploying, Airbag....................... 27
Diagnostic System, Onboard............... 225
Dimmer Switch, Headlight................. 57Dipsticks
Oil (Engine)......................... 228
Disabled Vehicle Towing................. 219
Disposal
Engine Oil.......................... 231
Used Coolant........................ 240
Door Locks............................ 15
Doors................................ 15
Drive Belts............................ 231
Driving.............................. 181
Off-Pavement........................ 181
Off-Road........................... 181
On Hills............................ 182
On Slippery Surfaces.................. 181
When to Use Low Range............... 181
Dual Top.............................. 66
Electrical Outlet, Auxiliary................. 63
Electrical Power Outlets................... 63
Electronic Speed Control.................. 60
Emergency Brake....................... 175
Emergency, In Case of
Brake Warning Light................... 119
290 INDEX