timing belt JEEP WRANGLER 2006 TJ / 2.G Owners Manual

MAINTAINING YOUR VEHICLE
CONTENTS

2.4L Engine ...........................266

4.0L Engine ...........................267

Onboard Diagnostic System — OBD II ........268

Emissions Inspection And Maintenance
Programs ............................269

Replacement Parts ......................270

Dealer Service .........................270

Maintenance Procedures ..................271
▫ Engine Oil ..........................271 ▫
Drive Belts — Check Condition And Tension . . 275
▫ Spark Plugs .........................275
▫ Catalytic Converter ....................275
▫ Engine Timing Belt — 2.4L Engine .........277
▫ Ignition Wiring System — 2.4L Engine ......277
▫ Crankcase Emission Control System ........277
▫ Fuel Filter ..........................278
▫ Engine Air Cleaner Filter ................278
▫ Maintenance-Free Battery ................278
7

To minimize the possibility of catalytic converter dam-
age:
•Do not shut off the engine or interrupt the ignition
when the transmission is in gear and the vehicle is in
motion.
•Do not try to start the engine by pushing or towing the
vehicle.
•Do not idle the engine with any spark plug wires
disconnected or removed, such as when diagnostic
testing.
•Do not idle the engine for prolonged periods during
very rough idle or malfunctioning operating conditions.
•Do not allow vehicle to run out of fuel.
NOTE: Intentional tampering with emissions control
systems can result in civil penalties being assessed
against you.
Engine Timing Belt — 2.4L Engine
Replace the engine timing belt at the intervals described
in the appropriate maintenance schedule.
Ignition Wiring System — 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.
MAINTAINING YOUR VEHICLE 277
7

Miles 78,000 81,000 84,000 87,000 90,000
(Kilometers) (130 000) (135 000) (140 000) (145 000) (150 000)
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
Inspect the PCV Valve, and replace if necessary.  X
Replace the spark plugs. X
Lubricate the steering linkage tie rod ends. X X X X X
Lubricate the steering and suspension ball joints. X X X
Replace the timing belt (2.4L Only) . X
Inspect the brake linings. X
Drain and refill the front and rear axle fluid‡ X
Inspect the drive belt and replace as needed. Not required
if belt was previously replaced. X
Inspect the manual transmission fluid, add as necessary. X
Inspect the transfer case fluid, add if necessary. X
328 SCHEDULE “B”
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) (180 000) (190 000) (200 000)
[Months] [108] [114] [120]
Change the engine oil and engine oil filter. X X X
Rotate the tires. 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.  X
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
SCHEDULE “A” 337
8
M
A I
N T
E
N A
N C E
S
C
H E
D
U L
E
S

Oil Filter............................ 274
Oil Pressure Gauge ..................... 149
Oil Selection .......................... 314
Overheating .......................... 253
Starting ............................. 182
Temperature Gauge ..................... 149
Timing Belt .......................... 277
Engine Oil Viscosity ...................... 274
Engine Oil Viscosity Chart ................. 274
Entry System, Illuminated .................. 17
Exhaust Gas Caution ................... 45,232
Exhaust System ......................... 283
Extender, Seat Belt ........................ 26
Exterior Finish Care ...................... 298
Fabric Care ......................... 300,302
Fabric Top ............................. 302
Filters Air Cleaner .......................... 278 Engine Fuel
.......................... 278
Engine Oil ........................... 274
Finish Care ............................ 298
Flashers Hazard Warning ....................... 252
Turn Signal ..................... 147,311,313
Flooded Engine Starting ................... 183
Fluid Capacities ......................... 314
Fluid Level Checks ...................... 296
Automatic Transmission ................. 292
Engine Oil ........................... 271
Manual Transmission ................... 294
Power Steering ........................ 281
Fluids, Lubricants and Genuine Parts .......... 315
Fog Light Service ........................ 311
Fog Lights ........................... 66,311
Folding Rear Seat ........................ 59
Folding Windshield ...................... 132
Four Wheel Drive ....................... 194
352 INDEX