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EMISSION CONTROL SYSTEM MAINTENANCE
The ªScheduledº maintenance services, listed inbold
typein this section (Section 8) must be done at the times
or mileages 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 best vehicle performance and
reliability. More frequent maintenance may be needed for
vehicles in severe operating conditions such as dusty
areas and very short trip driving.
Inspection and service also should be done any time a
malfunction is suspected.
NOTE:Maintenance, replacement, or repair of the emis-
sion control devices and systems on your vehicle may be
performed by any automotive repair establishment or
individual using any automotive part which has been
certified pursuant to U.S. EPA or, in the State of Califor-
nia, California Air Resources Board regulations.
MAINTENANCE SCHEDULES Ð 24±VALVE
CUMMINS TURBO DIESEL
There are two maintenance schedules that show the
requiredservice for your vehicle.
First is ScheduleªBº. It is for vehicles that are operated
under the conditions that are listed below and at the
beginning of the schedule.
²Frequent short trips where the engine does not achieve
full operating temperature (operating temperature de-
fined as 190É F (66É C ) coolant temperature).
²Extensive engine idling (over 10 minutes per hour of
operation) at ambient temperatures less than 32É F (0É
C).
²Driving in dusty conditions.
²Frequent trailer towing.
²Taxi, police, or delivery service (commercial service).
384 MAINTENANCE SCHEDULES
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²Off-road or desert operation.
²Extensive 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 Schedule9B9.
Second is ScheduleªAº. It is for vehicles that are not
operated under any of the conditions listed under Sched-
ule9B9.
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
²Check 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.
²Check the windshield washer solvent and add if
required.
²Drain water from the fuel filter.
Once a Month
²Check tire pressure and look for unusual wear or
damage.
²Inspect the batteries and clean and tighten the termi-
nals as required.
MAINTENANCE SCHEDULES 385
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Page 386 of 426
²Check the fluid levels of coolant reservoir, brake
master cylinder, and transmission and transfer case (if
equipped), add as needed.
²Check Filter MinderŸ. Replace air cleaner filter
element if necessary.
²Check all lights and all other electrical items for correct
operation.
At Each Oil Change
²Change the engine oil filter.
²Inspect the exhaust system.
²Inspect the brake hoses.
²Inspect the CV joints (if equipped) and front suspen-
sion components.
²Check the automatic transmission fluid level.
²Check the manual transmission fluid level.
²Check the coolant level, hoses, and clamps.
386 MAINTENANCE SCHEDULES
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Schedule ªBº
Follow schedule ªBº if you usually operate your vehicle
under one or more of the following conditions.
²Frequent short trips where the engine does not achieve
full operating temperature (operating temperature de-
fined as 190É F (66É C ) coolant temperature).
²Extensive engine idling (over 10 minutes per hour of
operation) at ambient temperatures less than 32É F (0É
C).
²Driving in dusty conditions.
²Frequent trailer towing.
²Taxi, police, or delivery service (commercial service).
²Off-road or desert operation.
²Extensive operation at high engine speeds (greater
than 2900 rpm) and loads (greater than 70% throttle).
SCHEDULE ªBº 387
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Page 418 of 426

Jack Location........................... 298
Jack Operation.......................... 300
Jump Starting.......................... 310
Key, Replacement........................ 12
Key, Sentry............................. 11
Key-In Reminder......................... 11
Keyless Entry System...................... 22
Keys................................ 11,16
Lane Change and Turn Signals.............. 103
Lap Belts.............................. 42
Lap/Shoulder Belts....................... 34
LATCH (Lower Anchors and Tether for CHildren) . 59
Lights...............................70,99
Airbag............................55,144
Anti-Lock Warning..................146,242
Battery Saver......................... 100
Brake Warning........................ 147Bulb Replacement...................... 367
Cap Top Clearance..................... 375
Center Mounted Stop................... 373
Check Engine......................... 143
Courtesy/Reading..................... 113
Cruise.............................. 147
Daytime Running...................... 102
Dual Wheel Assembly Rear............... 376
Fog .............................102,378
Four-Wheel Drive Indicator............... 230
Hazard Warning Flasher................. 296
Headlights........................... 101
High Beam........................104,144
High Beam Indicator.................... 144
High Beam/Low Beam Select............. 104
Instrument Cluster..................... 143
Intensity Control....................... 100
Interior...........................99,113
Lights On Reminder.................... 102
418 INDEX
Page 421 of 426

Passing Light........................... 104
Pedals, Adjustable....................... 108
Phone, Cellular.......................... 79
Phone, Hands-Free....................... 79
Pickup Box............................ 133
Placard, Tire and Loading Information......... 247
Power
Distribution Center..................... 366
Door Locks........................... 17
Mirrors.............................. 77
Outlet.............................. 126
Seats................................ 95
Steering..........................242,339
Windows............................. 31
Power Steering Fluid..................... 381
Pregnant Women and Seat Belts.............. 44
Pretensioners
Seat Belts............................. 42
Programmable Electronic Features.........121,125Programming Transmitters..............121,125
Radial Ply Tires......................... 255
Radiator Cap........................... 343
Radio........................152,158,168,175
Radio Operation......................152,168
Radio Remote Controls.................... 181
Rear Axle............................. 351
Rear Wheel Bearings..................... 356
Reclining Front Seats...................... 93
Recommended Fluids, Lubricants and Genuine
Parts............................... 380
Recreational Towing...................... 286
Shifting into Transfer Case Neutral (N)....286,288
Shifting out of Transfer Case Neutral (N) . . . 287,290
Refrigerant............................ 339
Relays and Flashers...................... 366
Reminder, Seat Belt....................... 43
Remote Keyless Entry..................... 22
INDEX 421
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