Jeep 2004 Wrangler Owner's Manual page 270

M
270 SCHEDULE "B"
A
I
Miles
N
T
(Kilometers)
E
Change the engine oil and engine oil filter.
N
A
Inspect the engine air filter element, replace if
N
necessary.
C
Inspect the PCV Valve, and replace if necessary.
E
Replace the spark plugs.
S
Lubricate the steering linkage tie rod ends.
C
H
Lubricate the steering and suspension ball joints.
E
Replace the timing belt (2.4L Only).
D
U
Inspect the brake linings.
L
Drain and refill the front and rear axle fluid‡
E
S
Inspect the drive belt and replace as needed. Not
8
required if belt was previously replaced.
Inspect the transfer case fluid, add if necessary.
78,000 81,000
(125 000) (130 000)
X X
X X
X
84,000 87,000
(134 000) (139 000) (144 000)
X X
X X
X
X
X
90,000
X
X
X
X
X
X
X
X
X