2004 Jeep Wrangler Owner's Manual - Page 276

M 276 SCHEDULE "A" A I N Miles T (Kilometers) E N [Months] A Change the engine oil and engine oil filter. N C Inspect the engine air filter element, and replace if necE essary. S C H E D U L E S 60,000 (96 000) [60] X X X X X X X X 66,000 (106 000) [66] X 72,000 (115 000) [72] X 78,000 (125 000) [78] X 8 Inspect the PCV Valve, and replace if necessary. Replace the ignition cables (2.4L Only). Replace the spark plugs. Lubricate the steering linkage joints and outer tie rod ends. Lubricate the steering and suspension ball joints. Inspect the brake linings. Inspect the drive belt, and replace as needed. Inspect the drive belt, and replace as needed. Not required if belt was previously replaced. Flush and replace the engine coolant at 60 months, regardless of mileage. Inspect transfer case fluid. X X X X X X X X