air filter DODGE RAM 2001 Service User Guide

57,000 Miles (91 000 km)
²Replace engine oil and filter.
60,000 Miles (96 000 km)
²Replace engine oil and filter.
²Replace engine air cleaner element.
²Replace ignition cables.
²Replace spark plugs.
²Drain and refill automatic transmission fluid.
Replace filter and adjust bands.³
²Change rear axle fluid.
²Change front axle fluid (4x4).
²Inspect brake linings.
63,000 Miles (101 000 km)
²Replace engine oil and filter.
66,000 Miles (106 000 km)
²Replace engine oil and filter.
69,000 Miles (110 000 km)
²Replace engine oil and filter.
72,000 Miles (115 000 km)
²Replace engine oil and filter.
²Drain and refill automatic transmission fluid.
Replace filter and adjust bands.
²Drain and refill transfer case fluid.
²Inspect front wheel bearings. Clean and repack,
if required (4x2).
²Change rear axle fluid.
²Change front axle fluid (4x4).
²Inspect brake linings.
75,000 Miles (120 000 km)
²Replace engine oil and filter.
²Inspect engine air cleaner element, replace
as necessary.
78,000 Miles (125 000 km)
²Replace engine oil and filter.
²Flush and replace engine coolant.
81,000 Miles (130 000 km)
²Replace engine oil and filter.
84,000 Miles (134 000 km)
²Replace engine oil and filter.
²Drain and refill automatic transmission fluid.
Replace filter and adjust bands.³
²Change rear axle fluid.
²Change front axle fluid (4x4).
²Inspect brake linings.
87,000 Miles (139 000 km)
²Replace engine oil and filter.
90,000 Miles (144 000 km)
²Replace engine oil and filter.
²Replace engine air cleaner element.
²Replace spark plugs.
²Inspect front wheel bearings. Clean and repack,
if required (4x2).
93,000 Miles (149 000 km)
²Replace engine oil and filter.
96,000 Miles (154 000 km)
²Replace engine oil and filter.
²Drain and refill automatic transmission fluid.
Replace filter and adjust bands.
²Change rear axle fluid.
²Change front axle fluid (4x4).
²Inspect brake linings.
99,000 Miles (156 000 km)
²Replace engine oil and filter.
102,000 Miles (163 000 km)
²Replace engine oil and filter.
105,000 Miles (168 000 km)
²Replace engine oil and filter.
²Inspect engine air cleaner element, replace
as necessary.
108,000 Miles (173 000 km)
²Replace engine oil and filter.
²Drain and refill automatic transmission fluid.
Replace filter and adjust bands.³
²Drain and refill transfer case fluid.
²Change rear axle fluid.
²Change front axle fluid (4x4).
²Inspect brake linings.
²Flush and replace engine coolant.
111,000 Miles (178 000 km)
²Replace engine oil and filter.
114,000 Miles (183 000 km)
²Replace engine oil and filter.
117,000 Miles (187 000 km)
²Replace engine oil and filter.
120,000 Miles (192 000 km)
²Replace engine oil and filter.
²Replace engine air cleaner element.
²Replace ignition cables.
²Replace spark plugs.
²Drain and refill automatic transmission fluid.
Replace filter and adjust bands.
²Change rear axle fluid.
²Change front axle fluid (4x4).
0 - 16 LUBRICATION & MAINTENANCEBR/BE
MAINTENANCE SCHEDULES (Continued)

²Inspect brake linings.
³Off-the-highway operation, trailer towing snow
plowing, prolonged operation with heavy loading,
especially in hot weather require the more frequent
transmission service indicated with an ³ in Schedule
ªBº. Perform these services if the vehicle is usually
operated under these conditions.
Inspection and service should also be performed
anytime a malfunction is observed or suspected.
DESCRIPTION - HEAVY DUTY ENGINE
(FEDERAL ONLY ± 2500 8.0L HD AND 3500
5.9L& 8.0L MODELS) MAINTENANCE
SCHEDULES
There are two maintenance schedules that show
proper service based on the conditions that the vehi-
cle is subjected to. Use the schedule that best
describes these conditions.
ScheduleªAº, lists all the scheduled maintenance
to be performed under normal operating conditions
for Heavy Duty vehicles.
ScheduleªBº, lists maintenance recommended for
Heavy Duty vehicles operated under the conditions
listed at the beginning of that schedule.
²Where time and mileage are listed, follow the
interval that occurs first.
At Each Stop For Fuel
²Check engine oil level, add as required.
²Check windshield washer solvent and add if
required.
²Clean windshield and wiper blades as required.
Once A Month
²Check tire pressure and look for unusual wear
or damage.
²Inspect battery and clean and tighten terminals
as required.
²Check fluid levels of coolant reservoir, power
steering and transmission and add as needed.
²Check all lights and all other electrical items for
correct operation.
²Inspect and clean wiper blades. Replace if
required.
At Each Oil Change
²Inspect exhaust system.
²Inspect brake hoses.
²Adjust rear brakes.
²Rotate the tires at each oil change interval
shown on schedule ªAº (6,000 Miles) or every other
interval shown on schedule ªBº (6,000 Miles).
²Check engine coolant level, hoses, and clamps.
²Lubricate steering linkage.
EMISSION CONTROL SYSTEM MAINTENANCE
The scheduled emission maintenance listed inbold
typeon the Maintenance Schedules, must be done at
the mileage specified to assure the continued proper
functioning of the emission control system. These,
and all other maintenance services included in this
manual, should be done to provide the best vehicle
performance and reliability. More frequent mainte-
nance may be needed for vehicles in severe operating
conditions such as dusty areas and very short trip
driving.
FLUID FILL LOCATIONS AND LUBRICATION
POINTS
The fluid fill/check locations and lubrication points
are located in each applicable group.
HEAVY DUTY SCHEDULE ªAº
6,000 miles (10 000 km) or at 6 months
²Change engine oil.
²Replace engine oil filter.
12,000 Miles (19 000 km) or at 12 months
²Change engine oil.
²Replace engine oil filter.
²Inspect engine air cleaner element, replace
as necessary (8.0L only).
18,000 Miles (29 000 km) or at 18 months
²Change engine oil.
²Replace engine oil filter.
²Inspect brake linings
²Inspect front wheel bearings. Clean and repack,
if required (4x4).
24,000 Miles (38 000 km) or at 24 months
²Change engine oil.
²Replace engine oil filter.
²Replace engine air cleaner element and air
pump filter.
²Clean and lubricate crankcase inlet air filter
(5.9L).
²Drain and refill automatic transmission fluid.
Replace filter and adjust bands.
²Inspect front wheel bearings. Clean and repack,
if required (4x2).
30,000 Miles (48 000 km) or at 30 months
²Change engine oil.
²Replace engine oil filter.
²Replace spark plugs.
36,000 Miles (58 000 km) or at 36 months
²Change engine oil.
²Replace engine oil filter.
BR/BELUBRICATION & MAINTENANCE 0 - 17
MAINTENANCE SCHEDULES (Continued)

²Drain and refill transfer case fluid.
²Inspect brake linings.
²Flush and replace engine coolant at 36 months,
regardless of mileage.
²Inspect front wheel bearings. Clean and repack,
if required (4x4).
²Inspect engine air cleaner element, replace
as necessary (8.0L only).
42,000 Miles (67 000 km) or at 42 months
²Change engine oil.
²Replace engine oil filter.
48,000 Miles (77 000 km) or at 48 months)
²Change engine oil.
²Replace engine oil filter.
²Replace engine air cleaner element and air
pump filter.
²Drain and refill automatic transmission fluid.
Replace filter and adjust bands.
²Clean and lubricate crankcase inlet air filter
(5.9L).
²Inspect front wheel bearings. Clean and repack,
if required (4x2).
²Flush and replace engine coolant if not done at
36 months.
54,000 Miles (86 000 km) or at 54 months
²Change engine oil.
²Replace engine oil filter.
²Inspect brake linings.
²Inspect front wheel bearings. Clean and repack,
if required (4x4).
60,000 Miles (96 000 km) or at 60 months
²Change engine oil.
²Replace engine oil filter.
²Replace ignition cables.
²Replace PCV valve (5.9L).*
²Replace distributor cap and rotor (5.9L
only).
²Replace spark plugs.
²Flush and replace engine coolant if it has been
30,000 miles (48 000 km) or 24 months since last
change.
²Inspect engine air cleaner element, replace
as necessary (8.0L only).
66,000 Miles (106 000 km) or at 66 months
²Change engine oil.
²Replace engine oil filter.
72,000 Miles (115 000 km) or at 72 months
²Change engine oil.
²Replace engine oil filter.
²Replace engine air cleaner element and air
pump filter.²Drain and refill automatic transmission fluid.
Replace filter and adjust bands.
²Drain and refill transfer case fluid.
²Clean and lubricate crankcase inlet air filter
(5.9L).
²Inspect front wheel bearings. Clean and repack,
if required (all).
²Inspect brake linings.
78,000 Miles (125 000 km) or at 78 months
²Change engine oil.
²Replace engine oil filter.
²Flush and replace engine coolant if it has been
30,000 miles (48 000 km) or 24 months since last
change.
82,500 Miles (132 000 km) or at 82 months
²Replace oxygen sensor (5.9L only).*
84,000 Miles (134 000 km) or at 84 months
²Change engine oil.
²Replace engine oil filter.
²Flush and replace engine coolant if it has been
30,000 miles (48 000 km) or 24 months since last
change.
²Inspect engine air cleaner element, replace
as necessary (8.0L only).
90,000 Miles (144 000 km) or at 90 months
²Change engine oil.
²Replace engine oil filter.
²Replace spark plugs.
²Inspect brake linings.
²Inspect front wheel bearings. Clean and repack,
if required (4x4).
96,000 Miles (154 000 km) or at 96 months
²Change engine oil.
²Replace engine oil filter.
²Replace engine air cleaner element and air
pump filter.
²Drain and refill automatic transmission fluid.
Replace filter and adjust bands.
²Clean and lubricate crankcase inlet air filter
(5.9L).
²Inspect front wheel bearings. Clean and repack,
if required (4x2).
102,000 Miles (163 000 km) or at 102 months
²Change engine oil.
²Replace engine oil filter.
108,000 Miles (173 000 km) or at 108 months
²Change engine oil.
²Replace engine oil filter.
²Drain and refill transfer case fluid.
²Inspect brake linings.
0 - 18 LUBRICATION & MAINTENANCEBR/BE
MAINTENANCE SCHEDULES (Continued)

²Flush and replace engine coolant if it has been
30,000 miles (48 000 km) or 24 months since last
change.
²Inspect front wheel bearings. Clean and repack,
if required (4x4).
²Inspect engine air cleaner element, replace
as necessary (8.0L only).
*Requires Service Reminder Indicator Light. If so
equipped, these parts are to be replaced at the indi-
cated mileage or when the service reminder indicator
light remains on continuously with the key in the
ªONº position, whichever occurs first.
HEAVY DUTY SCHEDULE ªBº
Follow this schedule if the vehicle is usually oper-
ated under one or more of the following conditions.
²Frequent short trips driving less than 5 miles
(8km)
²Frequent driving in dusty conditions
²Frequent trailer towing
²Extensive idling
²More than 50% of the driving is at sustained
high speeds during hot weather, above 90ÉF (32ÉC)
3,000 Miles (5 000 km)
²Change engine oil.
²Replace engine oil filter.
²Lubricate tie rod ends every 3,000 miles (5 000
km).
6,000 Miles (10 000 km)
²Change engine oil.
²Replace engine oil filter.
²Lubricate tie rod ends every 3,000 miles (5 000
km).
²Inspect front wheel bearings (4x4).
9,000 Miles (14 000 km)
²Change engine oil.
²Replace engine oil filter.
²Lubricate tie rod ends every 3,000 miles (5 000
km).
²Inspect front wheel bearings (4x2).
12,000 Miles (19 000 km)
²Change engine oil.
²Replace engine oil filter.
²Inspect engine air cleaner element and air
pump filter, replace as necessary.
²Drain and refill automatic transmission fluid.
Replace filter and adjust bands.³
²Change rear axle fluid.
²Change front axle fluid (4x4).
²Inspect brake linings.
²Lubricate tie rod ends every 3,000 miles (5 000
km).
²Inspect front wheel bearings (4x4).
15,000 Miles (24 000 km)
²Change engine oil.
²Replace engine oil filter.
²Lubricate tie rod ends every 3,000 miles (5 000
km).
18,000 Miles (29 000 km)
²Change engine oil.
²Replace engine oil filter.
²Lubricate tie rod ends every 3,000 miles (5 000
km).
²Inspect front wheel bearings (4x4).
²Inspect front wheel bearings (4x2).
²Drain and refill transfer case fluid every 18,000
miles (4x4).
21,000 Miles (34 000 km)
²Change engine oil.
²Replace engine oil filter.
²Lubricate tie rod ends every 3,000 miles (5 000
km).
24,000 Miles (38 000 km)
²Change engine oil
²Replace engine oil filter.
²Replace engine air cleaner element and air
pump filter.
²Drain and refill automatic transmission fluid.
Replace filter and adjust bands.
²Change rear axle fluid.
²Change front axle fluid (4x4).
²Clean and lubricate crankcase inlet air filter
(5.9L).
²Inspect front wheel bearings. Clean and repack,
if required (4x2).
²Inspect brake linings.
²Lubricate tie rod ends every 3,000 miles (5 000
km).
²Inspect front wheel bearings (4x4).
27,000 Miles (43 000 km)
²Change engine oil.
²Replace engine oil filter.
²Lubricate tie rod ends every 3,000 miles (5 000
km).
²Inspect front wheel bearings (4x2).
30,000 Miles (48 000 km)
²Change engine oil.
²Replace engine oil filter.
²Lubricate tie rod ends every 3,000 miles (5 000
km).
²Inspect PCV valve, replace as necessary
(5.9L).
²Replace spark plugs.
²Inspect front wheel bearings (4x4).
BR/BELUBRICATION & MAINTENANCE 0 - 19
MAINTENANCE SCHEDULES (Continued)

33,000 Miles (53 000 km)
²Change engine oil.
²Replace engine oil filter.
²Lubricate tie rod ends every 3,000 miles (5 000
km).
36,000 Miles (58 000 km)
²Change engine oil.
²Replace engine oil filter.
²Inspect engine air cleaner element and air
pump filter, replace as necessary.
²Drain and refill automatic transmission fluid.
Replace filter and adjust bands.³
²Drain and refill transfer case (4x4).
²Change rear axle fluid.
²Change front axle fluid (4x4).
²Inspect brake linings.
²Lubricate tie rod ends every 3,000 miles (5 000
km).
²Inspect front wheel bearings (4x4).
²Inspect front wheel bearings (4x2).
39,000 Miles (62 000 km)
²Change engine oil.
²Replace engine oil filter.
²Lubricate tie rod ends every 3,000 miles (5 000
km).
42,000 Miles (67 000 km)
²Change engine oil.
²Replace engine oil filter.
²Lubricate tie rod ends every 3,000 miles (5 000
km).
²Inspect front wheel bearings (4x4).
45,000 Miles (72 000 km)
²Change engine oil.
²Replace engine oil filter.
²Lubricate tie rod ends every 3,000 miles (5 000
km).
²Inspect front wheel bearings (4x2).
²Flush and replace engine coolant (36 months).
48,000 Miles (77 000 km)
²Change engine oil.
²Replace engine oil filter.
²Replace engine air cleaner element and air
pump filter.
²Drain and refill automatic transmission fluid.
Replace filter and adjust bands.
²Change rear axle fluid.
²Change front axle fluid (4x4).
²Clean and lubricate crankcase inlet air filter
(5.9L).
²Inspect front wheel bearings. Clean and repack,
if required (4x2).²Inspect brake linings.
²Flush and replace engine coolant.
²Lubricate tie rod ends every 3,000 miles (5 000
km).
²Inspect front wheel bearings (4x4).
²Drain and refill transfer case fluid every 18,000
miles (4x4).
51,000 Miles (82 000 km)
²Change engine oil.
²Replace engine oil filter.
²Lubricate tie rod ends every 3,000 miles (5 000
km).
54,000 Miles (86 000 km)
²Change engine oil.
²Replace engine oil filter.
²Lubricate tie rod ends every 3,000 miles (5 000
km).
²Inspect front wheel bearings (4x4).
²Inspect front wheel bearings (4x2).
²Drain and refill transfer case (4x4).
57,000 Miles (91 000 km)
²Change engine oil.
²Replace engine oil filter.
²Lubricate tie rod ends every 3,000 miles (5 000
km).
60,000 Miles (96 000 km)
²Change engine oil.
²Replace engine oil filter.
²Inspect engine air cleaner element and air
pump filter, replace as necessary.
²Replace PCV valve (5.9L).*
²Replace distributor cap and rotor (5.9L).
²Replace ignition cables.
²Replace spark plugs.
²Clean EGR passages (5.9L if so equipped).*
²Replace EGR valve (5.9L if so equipped).*
²Drain and refill automatic transmission fluid.
Replace filter and adjust bands.³
²Change rear axle fluid.
²Change front axle fluid (4x4).
²Inspect brake linings.
²Lubricate tie rod ends every 3,000 miles (5 000
km).
²Inspect front wheel bearings (4x4).
63,000 Miles (101 000 km)
²Change engine oil.
²Replace engine oil filter.
²Lubricate tie rod ends every 3,000 miles (5 000
km).
²Inspect front wheel bearings (4x2).
0 - 20 LUBRICATION & MAINTENANCEBR/BE
MAINTENANCE SCHEDULES (Continued)

66,000 Miles (106 000 km)
²Change engine oil.
²Replace engine oil filter.
²Lubricate tie rod ends every 3,000 miles (5 000
km).
²Inspect front wheel bearings (4x4).
69,000 Miles (110 000 km)
²Change engine oil.
²Replace engine oil filter.
²Lubricate tie rod ends every 3,000 miles (5 000
km).
72, 000 Miles (115 000 km)
²Change engine oil.
²Replace engine oil filter.
²Replace engine air cleaner element and air
pump filter.
²Clean and lubricate crankcase inlet air filter
(5.9L).
²Drain and refill automatic transmission fluid.
Replace filter and adjust bands.
²Drain and refill transfer case fluid (4x4).
²Change rear axle fluid.
²Change front axle fluid (4x4).
²Inspect front wheel bearings. Clean and repack,
if required (4x2).
²Inspect brake linings.
²Lubricate tie rod ends every 3,000 miles (5 000
km).
²Inspect front wheel bearings (4x4).
²Inspect front wheel bearings (4x2).
75,000 Miles (120 000 km)
²Change engine oil.
²Replace engine oil filter.
²Lubricate tie rod ends every 3,000 miles (5 000
km).
78,000 Miles (125 000 km)
²Change engine oil.
²Replace engine oil filter.
²Flush and replace engine coolant if it has been
30,000 miles (48 000 km) since last change.
²Lubricate tie rod ends every 3,000 miles (5 000
km).
²Inspect front wheel bearings (4x4).
81,000 Miles (130 000 km)
²Change engine oil.
²Replace engine oil filter.
²Lubricate tie rod ends every 3,000 miles (5 000
km).
²Inspect front wheel bearings (4x2).
82,500 Miles (132 000 km)
²Replace oxygen sensor (5.9L only).*
84,000 Miles (134 000 km)
²Change engine oil.
²Replace engine oil filter.
²Inspect engine air cleaner element and air
pump filter, replace as necessary.
²Drain and refill automatic transmission fluid.
Replace filter and adjust bands.³
²Change rear axle fluid.
²Change front axle fluid (4x4).
²Inspect brake linings.
²Lubricate tie rod ends every 3,000 miles (5 000
km).
²Inspect front wheel bearings (4x4).
87,000 Miles (139 000 km)
²Change engine oil.
²Replace engine oil filter.
²Lubricate tie rod ends every 3,000 miles (5 000
km).
90,000 Miles (144 000 km)
²Change engine oil.
²Replace engine oil filter.
²Lubricate tie rod ends every 3,000 miles (5 000
km).
²Inspect PCV valve, replace as necessary
(5.9L).
²Replace spark plugs.
²Inspect front wheel bearings (4x4).
²Inspect front wheel bearings (4x2).
²Drain and refill transfer case fluid (4x4).
93,000 Miles (149 000 km)
²Change engine oil.
²Replace engine oil filter.
²Lubricate tie rod ends every 3,000 miles (5 000
km).
96,000 Miles (154 000 km)
²Change engine oil.
²Replace engine oil filter.
²Replace engine air cleaner element and air
pump filter.
²Drain and refill automatic transmission fluid.
Replace filter and adjust bands.
²Change rear axle fluid.
²Change front axle fluid (4x4).
²Clean and lubricate crankcase inlet air filter
(5.9L).
²Inspect front wheel bearings. Clean and repack,
if required (4x2).
²Inspect brake linings.
²Lubricate tie rod ends every 3,000 miles (5 000
km).
²Inspect front wheel bearings (4x4).
BR/BELUBRICATION & MAINTENANCE 0 - 21
MAINTENANCE SCHEDULES (Continued)

99,000 Miles (156 000 km)
²Change engine oil.
²Replace engine oil filter.
²Lubricate tie rod ends every 3,000 miles (5 000
km).
²Inspect front wheel bearings (4x2).
102,000 Miles (163 000 km)
²Change engine oil.
²Replace engine oil filter.
²Lubricate tie rod ends every 3,000 miles (5 000
km).
²Inspect front wheel bearings (4x4).
105,000 Miles (168 000 km)
²Change engine oil.
²Replace engine oil filter.
²Lubricate tie rod ends every 3,000 miles (5 000
km).
108,000 Miles (173 000 km)
²Change engine oil.
²Replace engine oil filter.
²Inspect engine air cleaner element and air
pump filter, replace as necessary.
²Drain and refill automatic transmission fluid.
Replace filter and adjust bands.³
²Drain and refill transfer case fluid (4x4).
²Change rear axle fluid.
²Change front axle fluid (4x4).
²Inspect brake linings.
²Flush and replace engine coolant if it has been
30,000 miles (48 000 km) since last change.
²Lubricate tie rod ends every 3,000 miles (5 000
km).
²Inspect front wheel bearings (4x4).
²Inspect front wheel bearings (4x2).
*Requires Service Reminder Indicator Light. If so
equipped, these parts are to be replaced at the indi-
cated mileage or when the service reminder indicator
light remains on continuously with the key in the
ªONº position, whichever occurs first.
³Off-the-highway operation, trailer towing, snow
plowing, prolonged operation with heavy loading,
especially in hot weather require the more frequent
transmission service indicated witha³inSchedule
ªBº. Perform these services if you usually operate
your Ram Truck under these conditions.
Inspection and service should also be performed
anytime a malfunction is observed or suspected.
DESCRIPTION - MAINTENANCE SCHEDULES
Ð 24±VALVE CUMMINS TURBO DIESEL
There are two maintenance schedules that show
proper service for the vehicle.First is ScheduleªA.ºIt lists all the scheduled
maintenance to be performed under ªnormalº operat-
ing conditions.
Second is ScheduleªB.ºIt is a schedule for vehicles
that are operated under the conditions listed at the
beginning of that schedule.
Use the schedule that best describes the driving
conditions.
Where time and mileage are listed, follow the
interval that occurs first.
At Each Stop For Fuel
²Check engine oil level and add as required.
²Check windshield washer solvent and add if
required.
²Clean windshield and wiper blades as required.
²Drain water from fuel filter.
Once A Month
²Check tire pressure and look for unusual wear
or damage.
²Inspect battery and clean and tighten terminals
as required.
²Check fluid levels of coolant reservoir, brake
master cylinder, power steering, and transmission.
Add fluid as required.
²Check all lights and all other electrical items for
correct operation.
²Check Filter Mindery. Replace air cleaner
element if necessary.
²Inspect and clean wiper blades. Replace if
required.
At Each Oil Change
²Inspect exhaust system.
²Inspect brake hoses.
²Adjust rear brakes.
²Rotate the tires at each oil change interval
shown at 7, 5000 miles (12 000 km) on schedule ªAº
or every other interval shown at 7,500 miles (12 000
km) on schedule ªBº.
²Check engine coolant level, hoses, and clamps.
²Lubricate steering linkage.
²Drain crankcase breather canister (if equipped).
EMISSION CONTROL SYSTEM MAINTENANCE
The scheduled emission maintenance listed inbold
typeon the Maintenance Schedules, must be done at
the mileage specified to assure the continued proper
functioning of the emission control system. These,
and all other maintenance services included in this
manual, should be done to provide the best vehicle
performance and reliability. More frequent mainte-
nance may be needed for vehicles in severe operating
conditions such as dusty areas and very short trip
driving.
0 - 22 LUBRICATION & MAINTENANCEBR/BE
MAINTENANCE SCHEDULES (Continued)

86,250 Miles (138 000 km)
²Change engine oil and filter.
²Drain crankcase breather canister (if equipped).
90,000 Miles (144 000 km)
²Change engine oil and filter.
²Drain crankcase breather canister (if equipped).
²Inspect drive belts, replace as necessary.
²Inspect fan hub.
²Inspect damper.
²Inspect water pump weep hole for blockage.
²
Replace fuel filter and clean water in fuel sensor.
²Drain and refill automatic transmission fluid.
Replace filter and adjust bands.
²Drain and refill transfer case fluid.
²Change rear axle fluid.
²Change front axle fluid (4x4).
²Inspect front wheel bearings. Clean and repack
if required (4x2).
²Inspect brake linings.
93,750 Miles (150 000 km)
²Change engine oil and filter.
²Drain crankcase breather canister (if equipped).
97,500 Miles (156 000 km)
²Change engine oil and filter.
²Drain crankcase breather canister (if equipped).
²Flush and replace engine coolant.
²Replace fuel filter and clean water in fuel sen-
sor.
²Adjust rear brakes.
101,250 Miles (162 000 km)
²Change engine oil and filter.
²Drain crankcase breather canister (if equipped).
105,000 Miles (168 000 km)
²Change engine oil and filter.
²Drain crankcase breather canister (if equipped).
²Inspect water pump weep hole for blockage.
²Replace fuel filter and clean water in fuel sen-
sor.
²Drain and refill automatic transmission fluid.
Replace filter and adjust bands.
²Change rear axle fluid.
²Change front axle fluid (4x4).
²Inspect brake linings.
108,750 Miles (174 000 km)
²Change engine oil and filter.
²Drain crankcase breather canister (if equipped).
112,500 Miles (180 000 km)
²Change engine oil and filter.
²Drain crankcase breather canister (if equipped).
²Inspect drive belts, replace as necessary.²
Replace fuel filter and clean water in fuel sensor.
116,250 Miles (186 000 km)
²Change engine oil and filter.
²Drain crankcase breather canister (if equipped).
120,000 Miles (192 000 km)
²Change engine oil and filter.
²Drain crankcase breather canister (if equipped).
²Inspect fan hub.
²Inspect damper.
²Inspect water pump weep hole for blockage.
²Replace fuel filter and clean water in fuel sen-
sor.
²Drain and refill automatic transmission fluid.
Replace filter and adjust bands.
²Change rear axle fluid.
²Change front axle fluid (4x4).
²Inspect front wheel bearings. Clean and repack
if required (4x2).
²Inspect brake linings.
123,750 Miles (198 000 km)
²Change engine oil and filter.
²Drain crankcase breather canister (if equipped).
127,500 Miles (204 000 km)
²Change engine oil and filter.
²Drain crankcase breather canister (if equipped).
²Replace fuel filter and clean water in fuel sen-
sor.
131,250 Miles (210 000 km)
²Change engine oil and filter.
²Drain crankcase breather canister (if equipped).
135,000 Miles (216 000 km)
²Change engine oil and filter.
²Drain crankcase breather canister (if equipped).
²Clean inside of engine air cleaner element hous-
ing.
²Inspect drive belts, replace as necessary.
²Inspect water pump weep hole for blockage.
²Replace fuel filter and clean water in fuel sen-
sor.
²Adjust valve lash clearance
²Drain and refill automatic transmission fluid.
Replace filter and adjust bands.
²Drain and refill transfer case fluid.
²Change rear axle fluid.
²Change front axle fluid (4x4).
²Inspect brake linings.
²Flush and replace engine coolant.
²Adjust rear brakes
Inspection and service should also be performed
anytime a malfunction is observed or suspected.
0 - 26 LUBRICATION & MAINTENANCEBR/BE
MAINTENANCE SCHEDULES (Continued)

OPERATION
The shift motor receives a vacuum signal from the
switch mounted on the transfer case when the vehi-
cle operator wants to switch from two wheel drive
mode to four wheel drive mode, or vice versa. When
this signal is received, the shift motor begins to move
the shift fork and collar within the axle housing. In
the four wheel drive mode, the shift collar connects
the axle intermediate shaft to the axle shaft to sup-
ply engine power to both front wheels. In two wheel
drive mode, the shift collar is disengaged from the
intermediate shaft and the intermediate shaft is
allowed to free-spin. When the two shafts are disen-
gaged, the load on the engine is reduced, thereby pro-
viding better fuel economy and road handling.
Fig. 27 Vacuum Control System
1 - CHECK VALVE
2 - CONTROL SWITCH ON TRANSFER CASE
3 - AIR VENT FILTER
4 - AXLE SHIFT MOTOR
5 - INDICATOR SWITCH
3 - 30 FRONT AXLE - 216FBIBR/BE
AXLE VACUUM MOTOR (Continued)

AXLE VACUUM MOTOR
DESCRIPTION
The disconnect axle control system consists of:
²Shift motor.
²Indicator switch.
²Vacuum switch.
²Vacuum harness (Fig. 27).
OPERATION
The shift motor receives a vacuum signal from the
switch mounted on the transfer case when the vehi-
cle operator wants to switch from two wheel drive
mode to four wheel drive mode, or vice versa. Whenthis signal is received, the shift motor begins to move
the shift fork and collar within the axle housing. In
the four wheel drive mode, the shift collar connects
the axle intermediate shaft to the axle shaft to sup-
ply engine power to both front wheels. In two wheel
drive mode, the shift collar is disengaged from the
intermediate shaft and the intermediate shaft is
allowed to free-spin. When the two shafts are disen-
gaged, the load on the engine is reduced, thereby pro-
viding better fuel economy and road handling.
Fig. 26 Seal Installation
1 - DIFFERENTIAL HOUSING
2 - POSITION FOR OPEN-END WRENCH
3 - SPECIAL TOOL 5041-2
4 - SPECIAL TOOL 8417
5 - SEAL
6 - SPECIAL TOOL 8411
Fig. 27 Vacuum Control System
1 - CHECK VALVE
2 - CONTROL SWITCH ON TRANSFER CASE
3 - AIR VENT FILTER
4 - AXLE SHIFT MOTOR
5 - INDICATOR SWITCH
3 - 62 FRONT AXLE - 248FBIBR/BE
AXLE SHAFT SEALS (Continued)