M
392 MAINTENANCE SCHEDULES
A
I
N
T
E
N
Maintenance Items
A
Replace the engine air cleaner filter.
N
Inspect the transfer case fluid.
C
E
Replace the top row of spark plugs on 4.7L engines.
**
S
C
Replace the spark plugs on 3.7L engines.
H
Change the automatic transmission fluid & main
E
sump filter, if using your vehicle for any of the follow-
D
U
ing: police, taxi, fleet or frequent trailer towing (4.7L
L
engines only).
E
Change the automatic transmission fluid & main
S
sump filter, if using your vehicle for any of the follow-
8
ing: police, taxi, fleet or frequent trailer towing (3.7L
engines).
Perform Maintenance Every (Where time and mileage
are listed, follow the interval that occurs first.)
Miles
Kilometers
30,000
50 000
30,000
50 000
30,000
50 000
30,000
50 000
60,000
100 000
60,000
100 000
or Months
30
30
30
30
60
60