2005 JEEP WRANGLER check engine

•Off-road or desert driving
•If equipped for and operated 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 B” of the
“Maintenance Schedules” section of this manual.
NOTE:IfANYof these apply to you then flush and
replace your engine coolant/anti-freeze every 102,000
miles (163 000 km) or 60 months, whichever comes first,
and follow “Schedule B” of the “Maintenance Schedules”
section of this manual.
NOTE:Most vehicles are operated under the conditions
listed for Schedule “B.”
Second is Schedule“A”. It is for vehicles that are not
operated under any of the conditions listed under Sched-
ule “B.”Use the schedule that best describes your driving condi-
tions. Where time and mileage are listed, follow the
interval that occurs first.
CAUTION!
Failure to perform the required maintenance items
may result in damage to the vehicle.
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.
MAINTENANCE SCHEDULES 301
8
M
A
I
N
T
E
N
A
N
C
E
S
C
H
E
D
U
L
E
S

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 coolant reservoir, brake
master cylinder, and transmission, 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 coolant level, hoses, and clamps.
•Inspect manual transmission fluid level — if
equipped.
•After completion of off-road operation, the underside
of the vehicle should be thoroughly inspected. Exam-
ine threaded fasteners for looseness.
302 MAINTENANCE SCHEDULES
8
M
A
I
N
T
E
N
A
N
C
E
S
C
H
E
D
U
L
E
S

About Your Brakes....................... 198
ABS (Anti-Lock Brake) System............147,200
Add-A-Trunk........................... 72
Adding Washer Fluid..................... 138
Air Cleaner, Engine (Engine Air Cleaner Filter) . . . 260
Air Conditioner Maintenance............... 262
Air Conditioning........................ 171
Air Conditioning Controls................. 172
Air Conditioning, Operating Tips............ 174
Air Conditioning Refrigerant............... 263
Air Filter.............................. 260
Air Pressure, Tires....................... 216
Airbag................................ 27
Airbag Deployment....................... 31
Airbag Light.........................33,145
Airbag Maintenance....................... 33
Alignment and Balance................... 220
Alterations/Modifications, Vehicle............. 9
Antenna, Satellite Radio................... 167Antifreeze (Engine Coolant)................ 295
Anti-Lock Brake System (ABS).............. 200
Anti-Lock Warning Light.................. 147
Appearance Care........................ 279
Automatic Dimming Mirror................. 50
Automatic Transmission................184,274
Adding Fluid......................... 276
Fluid and Filter Changes................. 274
Fluid Level Check...................... 275
Fluid Type........................... 274
Gear Ranges.......................... 185
Shifting............................. 184
Special Additives...................... 276
Torque Converter...................... 190
Auxiliary Electrical Outlet.................. 69
Auxiliary Power Outlet.................... 69
Battery............................... 261
Emergency Starting..................... 242
332 INDEX

Voltmeter............................ 143
Belts, Drive............................ 257
Belts, Seat.............................. 20
Body Mechanism Lubrication............... 264
B-Pillar Location........................ 211
Brake System........................... 272
Anti-Lock........................... 200
Hoses.............................. 272
Master Cylinder....................... 273
Parking............................. 196
Warning Light........................ 147
Brakes............................... 198
Brake/Transmission Interlock............... 185
Break-In Recommendations, New Vehicle........ 44
Bulb Replacement.....................290,291
Calibration, Compass...................... 52
Capacities, Fluid........................ 295Caps, Filler
Fuel................................ 226
Power Steering........................ 263
Car Washes............................ 280
Carbon Monoxide Warning................. 225
Carpeting............................. 283
Cassette Tape and Player Maintenance......... 167
Catalytic Converter...................... 258
Caution, Exhaust Gas...................... 44
CD Changer........................... 154
CD Player....................150,152,156,159
CD Player Maintenance................... 168
Cellular Phone.......................... 169
Center High Mounted Stop Light............ 294
Chains, Tire............................ 221
Changing A Flat Tire..................... 238
Chart, Tire Sizing........................ 208
Check Engine Light
(Malfunction Indicator Light)...........145,251
INDEX 333
10

Oil Filter............................ 257
Oil Pressure Gauge..................... 145
Oil Selection.......................... 295
Overheating.......................... 237
Starting............................. 178
Temperature Gauge..................... 145
Engine Oil Viscosity...................... 256
Engine Oil Viscosity Chart................. 256
Entry System, Illuminated.................. 17
Exhaust Gas Caution...................44,225
Exhaust System......................... 266
Extender, Seat Belt........................ 26
Exterior Finish Care...................... 280
Fabric Care.........................280,283
Fabric Top............................. 280
Filters
Air Cleaner.......................... 260
Engine Fuel.......................... 260Engine Oil........................... 257
Finish Care............................ 280
Flashers
Hazard Warning....................... 236
Turn Signal.....................143,292,294
Flooded Engine Starting................... 179
Fluid Capacities......................... 295
Fluid Level Checks...................... 278
Automatic Transmission................. 274
Engine Oil........................... 253
Manual Transmission................... 276
Power Steering........................ 263
Fog Light Service........................ 292
Fog Lights...........................63,292
Folding Rear Seat........................ 57
Folding Windshield...................... 130
Four Wheel Drive....................... 190
Shifting............................. 192
Four Wheel Drive Operation.............190,191
336 INDEX

Lead Free Gasoline...................... 222
Lights................................. 61
Airbag............................33,145
Anti-Lock........................... 147
Anti-Lock Warning..................... 147
Back-Up............................. 294
Brake Warning........................ 147
Bulb Replacement...................... 291
Center Mounted Stop................... 294
Check Engine......................... 145
Check Gauges........................ 145
Cruise.............................. 143
Daytime Running....................... 64
Dimmer Switch, Headlight................ 63
Fog ..............................63,292
Headlight Switch....................... 62
Headlights........................... 291
High Beam........................... 144
High Beam Indicator.................... 144Instrument Cluster...................... 62
Interior.............................. 61
Lights On Reminder..................... 63
Low Fuel............................ 147
Passing.............................. 63
Rear Servicing........................ 294
Rear Tail............................ 294
Seat Belt Reminder..................... 144
Sentry Key........................... 143
Service.............................. 291
Side Marker.......................... 294
Turn Signal...................63,143,292,294
Warning (Instrument Cluster Description)..... 143
Loading Vehicle
Tires ............................... 211
Locks................................. 18
Door................................ 18
Steering Wheel......................... 17
INDEX 339
10

Lower Anchors and Tether for CHildren
(LATCH)...........................37,38
Lubrication, Body....................... 264
Maintenance, Airbag...................... 33
Maintenance Free Battery.................. 261
Maintenance Procedures................... 253
Maintenance Schedule.................... 300
ScheduleA......................... 314
ScheduleB.......................... 303
Maintenance Schedules.................... 300
Malfunction Indicator Light..............145,251
Manual, Service......................... 328
Manual Transmission..................181,276
Fluid Level Check...................... 276
Lubricant Selection..................... 276
Shift Speeds.......................... 183
Master Cylinder......................... 273
Mirrors................................ 50Automatic Dimming..................... 50
Compass/Temperature................... 50
Outside.............................. 54
Rearview............................. 50
Modifications/Alterations, Vehicle............. 9
Mopar Parts.........................252,327
Multi-Function Control Lever................ 62
New Vehicle Break-In Period................ 44
Occupant Restraints....................... 19
Octane Rating, Gasoline................... 223
Odometer............................. 146
Trip ................................ 146
Off-Pavement Driving.................... 202
Off-Road Driving........................ 202
Oil, Engine............................ 253
Capacity............................ 295
Dipstick............................. 253
340 INDEX