2008 JEEP WRANGLER steering

Brake and Power Steering System Hoses
When servicing the vehicle for scheduled maintenance,
inspect surface of hoses for evidence of heat and me-
chanical damage. Hard and brittle rubber, cracking, tears,
cuts, abrasion, and excessive swelling suggest deteriora-
tion of the rubber. Particular attention should be made to
examining those hose surfaces nearest to high heat
sources, such as the exhaust manifold.
Inspect all hose clamps and couplings to make sure they
are secure and no leaks are present.
NOTE:Inspection of brake hoses should be done when-
ever the brake system is serviced and every engine oil
change.WARNING!
Worn brake hoses can burst and cause brake failure.
You could have an accident. If you see any signs of
cracking, scuffing, or worn spots, have the brake
hoses replaced immediately.
Brake Master Cylinder — Brake Fluid Level Check
Refer to Fluids, Lubricants, and Genuine Parts in this
section for the correct fluid type.
WARNING!
Use of a brake fluid that may have a lower initial
boiling point, or is unidentified as to specification,
may result in sudden brake failure during hard
prolonged braking. You could have an accident.
400 MAINTAINING YOUR VEHICLE

Following off-road usage, completely inspect the under-
body of your vehicle. Check tires, body structure, steer-
ing, suspension and exhaust system for damage. Check
threaded fasteners for looseness, particularly on the
chassis, drivetrain components, steering and suspension.
Retighten, if required, to torque values specified in the
Service Manual. Also check for accumulations of vegeta-
tion or brush that could become a fire hazard, or conceal
damage to fuel lines, brake hoses, axle pinion seals, and
propeller shafts. Check air conditioning drain tube on the
lower dash wall in the engine compartment for mud or
debris, and clean as required. A plugged tube will
adversely affect air conditioning performance.CAUTION!
Under frequent heavy-duty driving conditions,
change all lubricants, and lubricate body compo-
nents more often than in normal service to prevent
excessive wear.
Appearance Care And Protection From Corrosion
Protection Of Body And Paint From Corrosion
Vehicle body care requirements vary according to geo-
graphic locations and usage. Chemicals that make roads
passable in snow and ice, and those that are sprayed on
trees and road surfaces during other seasons, are highly
corrosive to the metal in your vehicle. Outside parking,
which exposes your vehicle to airborne contaminants,
road surfaces on which the vehicle is operated, extreme
406 MAINTAINING YOUR VEHICLE

Chassis
ComponentFluid, Lubricant, or Genuine Part
Automatic Transmission MOPARATF+4 Automatic Transmission Fluid
Manual Transmission MOPARManual Transmission Lubricant or equivalent (meeting the require-
ments of DaimlerChrysler Material Standard MS-9224)
Transfer Case MOPARATF+4 Automatic Transmission Fluid or equivalent.
Axle Differential (Front) MOPARGear & Axle Lubricant (SAE 80W-90) (API GL-5) or equivalent.
Axle Differential (Rear) 198 RBI (Model 35) and 226 RBI (Model 44) - MOPARGear & Axle Lubri-
cant (SAE 80W-90) (API GL-5) or equivalent. For trailer towing, use MOPAR
Synthetic Gear & Axle Lubricant (SAE 75W-140) or equivalent. Models
equipped with Trac-Lok™ require an additive.
Brake Master Cylinder MOPARDOT 3 Brake Fluid, SAE J1703 should be used. If DOT 3, SAE
J1703 brake fluid is not available, then DOT 4 is acceptable. Use only recom-
mended brake fluids.
Power Steering Reservoir MOPARATF+4 Automatic Transmission Fluid
426 MAINTAINING YOUR VEHICLE

•Change your engine oil more often if you drive your
vehicle off-road for an extended period of time.
•Under no circumstances should oil change intervals
exceed 6,000 mi (10,000 km) or 6 months, whichever
comes first.
Your dealer will reset the oil change indicator message
after completing the scheduled oil change. If this sched-
uled oil change is performed by someone other than your
dealer the message can be reset by referring to the steps
described under “Odometer/Trip Odometer” in the “In-
strument Cluster Description” section of this manual.
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 and add if
required.
Once a Month
•Check 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 coolant reservoir, brake
master cylinder, power steering and transmission and
add as needed.
•Check all lights and other electrical items for correct
operation.
MAINTENANCE SCHEDULES 429
8
M A I
N T
E
N A
N CE
S
C
H E
D
U L
E
S

Axle Lock.......................... 290,291
Battery ............................... 389
Emergency Starting ..................... 371
Keyless Transmitter Replacement (RKE) ....... 24
Belts, Drive ............................ 386
Belts, Seat .............................. 41
Body Mechanism Lubrication ............... 392
Brake Assist System ...................... 107
Brake Assist Warning Light ................. 214
Brake Control System, Electronic ............. 105
Brake System ........................... 399
Anti-Lock (ABS) .................... 105,309
Hoses .............................. 400
Master Cylinder ....................... 400
Parking ............................. 308
Warning Light ........................ 207
Brake/Transmission Interlock ............... 281
Break-In Recommendations, New Vehicle ........ 75Bulb Replacement
....................... 420
Capacities, Fluid ........................ 424
Caps, Filler Fuel ................................ 340
Power Steering ........................ 391
Car Washes ............................ 407
Carbon Monoxide Warning ................. 339
Cargo Light ............................ 95
Cargo (Vehicle Loading) ................... 342
Catalytic Converter ...................... 386
Caution, Exhaust Gas ...................... 75
CD (Compact Disc) Player ................. 250
CD (Compact Disc) Player Maintenance ........ 258
Cellular Phone .................. 85,250,251,258
Center High Mounted Stop Light ............ 423
Certification Label ....................... 342
Chains, Tire ............................ 329
Changing A Flat Tire ..................... 366
INDEX 447
10

Engine Oil........................... 385
Finish Care ............................ 407
Flashers Hazard Warning ....................... 364
Turn Signal ..................... 207,421,422
Flooded Engine Starting ................... 273
Fluid Capacities ......................... 424
Fluid Level Checks ...................... 405
Automatic Transmission ................. 401
Engine Oil ........................... 383
Manual Transmission ................... 404
Power Steering ........................ 391
Fluids, Lubricants and Genuine Parts .......... 425
Fog Light Service ........................ 422
Fog Lights ........................... 99,422
Fold and Tumble Rear Seat .................. 89
Folding Rear Seat ........................ 92
Folding Windshield ...................... 191
Four Wheel Drive ....................... 285 Shifting
............................. 287
Four Wheel Drive Operation ................ 285
Four-Way Hazard Flasher .................. 364
Front Axle (Differential) ................... 405
Fuel ................................. 336
Filler Cap (Gas Cap) .................... 340
Filter ............................... 388
Gasoline ............................ 336
Gauge .............................. 206
Materials Added ....................... 338
Octane Rating ........................ 336
Requirements ......................... 424
Tank Capacity ........................ 424
Fuel System Caution ................... 338,341
Fuses ................................ 413
Gas Cap (Fuel Filler Cap) ...............340,380
Gasoline (Fuel) ......................... 336
Gasoline, Reformulated ................... 336
INDEX 451
10

Tires ............................... 317
Locking Axle ........................ 290,291
Locks Door .............................. 31,32
Power Door ........................... 33
Steering Wheel ......................... 14
Lower Anchors and Tether for CHildren
(LATCH) ............................ 68,69
Lubrication, Body ....................... 392
Maintenance Free Battery .................. 389
Maintenance Procedures ................... 383
Maintenance Schedule .................... 428
Malfunction Indicator Light (Check Engine) . . 213,380
Manual, Service ......................... 441
Manual Transmission .................. 275,403
Fluid Level Check ...................... 404
Lubricant Selection ..................... 403
Shift Speeds .......................... 276 Master Cylinder (Brakes)
.................. 400
Mini-Trip Computer ...................... 215
Mirrors ................................ 83
Outside .............................. 84
Rearview ............................. 83
Modifications/Alterations, Vehicle ............. 8
Modular Hard Top ....................... 125
Monitor, Tire Pressure System ............... 330
Mopar Parts ......................... 382,440
MP3 Player ............................ 250
Multi-Function Control Lever ................ 97
Navigation Radio ........................ 250
Navigation System ....................... 250
New Vehicle Break-In Period ................ 75
Occupant Restraints ....................... 40
Octane Rating, Gasoline (Fuel) .............. 336
Odometer ............................. 211
INDEX 455
10

Trip .............................210,211
Off-Pavement Driving (Off-Road) ............ 294
Off-Road Driving (Off-Pavement) ............ 294
Oil Change Indicator ..................... 212
Oil Change Indicator, Reset ................. 212
Oil, Engine ............................ 383
Capacity ............................ 424
Dipstick ............................. 383
Filter ............................... 385
Identification Logo ..................... 384
Materials Added to ..................... 385
Pressure Warning Light .................. 207
Recommendation ................... 384,424
Viscosity .......................... 384,424
Oil Pressure Light ....................... 207
Onboard Diagnostic System ..............379,380
Outside Rearview Mirrors .................. 84
Overheating, Engine ...................... 365
Owner’s Manual (Operator Manual) .......... 441Paint Care
............................. 406
Paint Damage .......................... 406
Panic Alarm ............................ 21
Parking Brake .......................... 308
Passing Light ........................... 99
PCV Valve ............................ 388
Pets .................................. 74
Phone, Cellular .................... 85,250,251
Phone, Hands-Free (UConnect™) ........85,250,251
Placard, Tire and Loading Information ......... 318
Polishing and Waxing ..................... 407
Port Universal Serial Bus (USB) ................ 250
USB ................................ 250
Power Distribution Center (Fuses) ............... 413
Door Locks ........................... 33
Steering .......................... 31 1,391
Windows ............................. 36
456 INDEX