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Perform Maintenance Every (Where time and mileage
are listed, follow the interval that occurs first.)
Maintenance Items Miles Kilometers or Months
Inspect the transfer case fluid — All Wheel Drive
(AWD).
30,000 50 000 30
Replace the spark plugs on 5.7L engines. 30,000 50 000 30
Change the rear axle fluid if using your vehicle for
any of the following: police, taxi, fleet, off-road, or fre-
quent trailer towing.
48,000 80 000 48
Change the automatic transmission fluid & filter if
using your vehicle for any of the following: police,
taxi, fleet, or frequent trailer towing.
60,000 100 000 60
Change the transfer case fluid if using your vehicle for
any of the following: police, taxi, fleet, off-road, or fre-
quent trailer towing — All Wheel Drive (AWD).
60,000 100 000 60
Inspect and replace the PCV valve if necessary. 90,000 150 000 90
Flush and replace the engine coolant. 102,000 170 000 60
Replace the spark plugs on 2.7L and 3.5L engines. 102,000 170 000 102
482 MAINTENANCE SCHEDULES
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