2004 JEEP LIBERTY spark plugs replace

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 brake linings. X
Inspect the engine air filter element, and replace if nec-
essary.X
Replace the spark plugs.X
Inspect and replace the PCV valve, if necessary.LX
Inspect the drive belt and replace as needed. Not required
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 345
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 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
M
A
I
N
T
E
N
A
N
C
E
S
C
H
E
D
U
L
E
S

Security Against Theft...................20,28
Security Alarm.......................... 28
Selection of Oil......................... 293
Selec-Trac Operation...................... 226
Sentry Key............................. 14
Sentry Key Programming................... 16
Sentry Key Replacement................... 15
Service Assistance....................... 348
Service Contract......................... 350
Service Manuals........................ 354
Setting the Clock........................ 158
Shift Speeds, Manual Transmission........... 215
Shifting............................... 213
Automatic Transmission................. 216
Manual Transmission................... 213
Transfer Case......................225,230
Shoulder Belt Upper Anchorage.............. 40
Shoulder Belts........................... 35
Signals, Turn........................101,151Slippery Surfaces, Driving On............... 237
Snow Chains........................... 257
Snow Plow............................ 270
Spare Tire............................. 275
Spark Plugs............................ 295
Specifications
Fuel................................ 259
Oil ................................ 293
Speed Control.......................... 108
Speedometer........................... 151
Starting............................... 210
Automatic Transmission................. 210
Cold Weather......................... 211
Emergency (Jump Starting)............... 279
Engine Block Heater.................... 212
Engine Fails to Start.................... 211
Manual Transmission................... 210
Starting Procedures...................... 210
INDEX 371
10