Page 443 of 493

•Off-road or desert operation.
•Extensive operation at high engine speeds (greater
than 2900 rpm) and loads (greater than 70% throttle).
NOTE:Most vehicles are operated under the conditions
listed for ScheduleB.
NOTE:IfANYof these apply to you then change your
coolant every 101,250 miles (162 000 km) or 60 months,
whichever comes first and follow schedule “B” of the
Maintenance Schedulessection of this manual.
Second is Schedule“A”. It is for vehicles that are not
operated under any of the conditions listed under Sched-
uleB.
Use the schedule that best describes your driving condi-
tions. Where time and mileage are listed, follow the
interval that occurs first.
CAUTION!
Failure to perform the required maintenance items
may result in damage to the vehicle.
At Each Stop for Fuel
•Check the engine oil level about 15 minutes after a
fully warmed engine is shut off. Checking the oil level
while the vehicle is on level ground will improve the
accuracy of the oil level reading. Add oil only when
the level is at or below the ADD or MIN mark.
•Check the windshield washer solvent and add if
required. When refilling the washer fluid reservoir,
take some washer fluid and apply it to a cloth or towel
and wipe clean the wiper blades, this will help blade
performance.
•Drain water from the fuel filter.
MAINTENANCE SCHEDULES 443
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Schedule “B”
Follow schedule “B” if you usually operate your vehicle
under one or more of the following conditions.
•Frequent short trips where the engine does not achieve
full operating temperature (operating temperature de-
fined as 190° F (66° C ) coolant temperature).
•Extensive engine idling (over 10 minutes per hour of
operation) at ambient temperatures less than 32° F (0°
C).
•Driving in dusty conditions.
•Frequent trailer towing.
•Taxi, police, or delivery service (commercial service).
•Off-road or desert operation.
•Extensive operation at high engine speeds (greater
than 2900 rpm) and loads (greater than 70% throttle).
NOTE:IfANYof these apply to you then change your
coolant every 101,250 miles (162 000 km) or 60 months,
whichever comes first and follow schedule “B” of the
Maintenance Schedulessection of this manual.
SCHEDULE “B” 445
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Page 446 of 493
Miles 3,750 7,500 11,250 15,000 18,750
(Kilometers) (6 000) (12 000) (18 000) (24 000) (30 000)
Change engine oil and engine oil filter. X X
Lubricate Front Drive Shaft Fitting (2500/3500,
4X4).X X XXX
Rotate tires. X X
Check spare tire for proper pressure and correct
stowage.XX
Lubricate outer tie rod ends 2500/3500 (4X4) mod-
els only.XX
Inspect water pump weep hole for blockage. X
Replace fuel filter element. Clean the water in fuel
sensor.X
Change rear axle fluid.X
Change front axle fluid (4X4). X
Inspect brake linings.X
Inspect and adjust parking brake if necessary. X
446 SCHEDULE “B”
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Page 447 of 493
Miles 22,500 26,250 30,000 33,750 37,500
(Kilometers) (36 000) (42 000) (48 000) (54 000) (60 000)
Change engine oil and engine oil filter. X X X
Lubricate Front Drive Shaft Fitting (2500/3500,
4X4).X X XXX
Rotate tires. X X X
Check spare tire for proper pressure and correct
stowage.XXX
Lubricate outer tie rod ends 2500/3500 (4X4) mod-
els only.XXX
Inspect drive belt, replace as required. X
Inspect fan hub. X
Inspect damper. X
Inspect water pump weep hole for blockage. X
Replace fuel filter element. Clean the water in fuel
sensor.X
SCHEDULE “B” 447
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Page 449 of 493
Miles 41,250 45,000 48,750 52,500 56,250
(Kilometers) (66 000) (72 000) (78 000) (84 000) (90 000)
Change engine oil and engine oil filter. X X
Lubricate Front Drive Shaft Fitting (2500/3500,
4X4).X X XXX
Rotate tires. X X
Check spare tire for proper pressure and correct
stowage.XX
Lubricate outer tie rod ends 2500/3500 (4X4) mod-
els only.XX
Inspect drive belt, replace as required. X
Inspect water pump weep hole for blockage. X
Replace fuel filter element. Clean the water in fuel
sensor.X
Inspect brake linings. X
Inspect and adjust parking brake if necessary. X
Change rear axle fluid. X
Change front axle fluid (4X4). X
SCHEDULE “B” 449
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Page 450 of 493
Miles 60,000 63,750 67,500 71,250 75,000
(Kilometers) (96 000) (102 000) (108 000) (114 000) (120 000)
Change engine oil and engine oil filter. X X X
Lubricate Front Drive Shaft Fitting (2500/3500,
4X4).X X XXX
Flush and replace engine coolant at 60 months, if
not replaced at 102,000 miles (163 000 km).X
Rotate tires. X X X
Check spare tire for proper pressure and correct
stowage.XXX
Lubricate outer tie rod ends 2500/3500 (4X4) mod-
els only.XXX
Inspect drive belt, replace as required. X
Inspect fan hub. X
Inspect damper. X
Inspect water pump weep hole for blockage. X X
Replace fuel filter element. Clean the water in fuel
sensor.XX
450 SCHEDULE “B”
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Page 452 of 493
Miles 78,750 82,500 86,250 90,000 93,750
(Kilometers) (126 000) (132 000) (138 000) (144 000) (150 000)
Change engine oil and engine oil filter. X X
Lubricate Front Drive Shaft Fitting (2500/3500,
4X4).X X XXX
Rotate tires. X X
Check spare tire for proper pressure and correct
stowage.XX
Lubricate outer tie rod ends 2500/3500 (4X4) mod-
els only.XX
Inspect drive belt, replace as required. X
Change rear axle fluid.X
Change front axle fluid (4X4). X
Check transfer case fluid level (4X4). X
Inspect fan hub.X
Inspect damper.X
Inspect water pump weep hole for blockage. X
452 SCHEDULE “B”
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Page 454 of 493
Miles 97,500 100,000 101,250 105,000 108,750 112,500
(Kilometers) (156 000) (160 000) (162 000) (168 000) (174 000) (180 000)
Change engine oil and engine oil filter. X X X
Lubricate Front Drive Shaft Fitting (2500/
3500, 4X4).X X XXXX
Flush and replace engine coolant, if not re-
placed at 60 months.X
Rotate tires. X X X
Check spare tire for proper pressure and cor-
rect stowage.XXX
Lubricate outer tie rod ends 2500/3500 (4X4)
models only.XXX
Flush and replace engine coolant. X
Inspect drive belt, replace as required. X
Inspect water pump weep hole for blockage. X
Replace fuel filter element. Clean the water in
fuel sensor.X
Change rear axle fluid. X
454 SCHEDULE “B”
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