JEEP GRAND CHEROKEE 2005 WK / 3.G Owners Manual

MAINTENANCE SCHEDULES
CONTENTS

Emission Control System Maintenance........362

Maintenance Schedules...................362▫Schedule “B”........................365
▫Schedule “A”........................376
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EMISSION CONTROL SYSTEM MAINTENANCE
The “Scheduled” maintenance services, listed inbold
typemust 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 main-
tenance 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
There are two maintenance schedules that show the
requiredservice for your vehicle.
First is ScheduleB. It is for vehicles that are operated
under the conditions that are listed below and at the
beginning of the schedule.
•Day or night temperatures are below 32°F (0°C)
•Stop and go driving
•Excessive engine idling
•Driving in dusty conditions
•Short trips of less than 10 miles (16.2 km)
•More than 50% of your driving is at sustained high
speeds during hot weather, above 90°F (32°C)
•Trailer towing
•Taxi, police, or delivery service (commercial service)
362 MAINTENANCE SCHEDULES
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•Off-road or desert driving
•If equipped for and operated with E-85 (ethanol)
fuel.
NOTE:Most vehicles are operated under the conditions
listed for Schedule “B.”
NOTE:IfANYof these apply to you, change your
engine oil every 3,000 miles (5 000 km) or 3 months,
whichever comes first, and follow the maintenance rec-
ommendations in “Maintenance Schedule B.”
NOTE:IfANYof these apply to you then flush and
replace your engine coolant every 102,000 miles (163 000
km) or 60 months, whichever comes first, and follow
“Schedule B” of the “Maintenance Schedules” section of
this manual.
Second is Schedule“A”. It is for vehicles that are not
operated under any of the conditions listed under Sched-
ule “B.”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 5 minutes after a fully
warmed engine is shut off. Checking the oil level while
the vehicle is on level ground will improve the accu-
racy 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, add as required.
MAINTENANCE SCHEDULES 363
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Once a Month
•Check the tire pressure and look for unusual wear or
damage.
•Inspect the battery and clean and tighten the terminals
as required.
•Check the fluid levels of the coolant reservoir, brake
master cylinder, and transmission, and add as needed.
•Check all lights and all other electrical items for correct
operation.At Each Oil Change
•Change the engine oil filter.
•Inspect the exhaust system.
•Inspect brake hoses.
•Check the engine coolant/anti-freeze level, hoses, and
clamps.
•After completion of off-road operation, the underside
of the vehicle should be thoroughly inspected. Exam-
ine threaded fasteners for looseness.
364 MAINTENANCE SCHEDULES
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Schedule “B”
Follow this schedule if you usually operate your vehicle
under one or more of the following conditions.
•Day or night temperatures are below 32°F (0°C)
•Stop and go driving
•Excessive engine idling
•Driving in dusty conditions
•Short trips of less than 10 miles (16.2 km)
•More than 50% of your driving is at sustained high
speeds during hot weather, above 90°F (32°C)
•Trailer towing
•Taxi, police, or delivery service (commercial service)
•Off-road or desert driving
•If equipped for and operated with E-85 (ethanol)
fuel.
NOTE:IfANYof these apply to you, change your
engine oil every 3,000 miles (5 000 km) or 3 months,
whichever comes first, and follow the maintenance rec-
ommendations in “Maintenance Schedule B.”
NOTE:IfANYof these apply to you then flush and
replace your engine coolant every 102,000 miles (163 000
km) or 60 months, whichever comes first, and follow
“Schedule B” of the “Maintenance Schedules” section of
this manual.
SCHEDULE “B” 365
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Miles 3,000 6,000 9,000 12,000 15,000
(Kilometers) (5 000) (10 000) (14 000) (19 000) (24 000)
Change the engine oil and engine oil filter, if not
replaced at 3 months.X X XXX
Rotate the tires. X X
Inspect the engine air cleaner filter, replace if nec-
essary.X
Lubricate the upper knuckle ball stud at steering &
suspension ball joints.XX
Drain and refill the front and rear axles. X
Inspect the brake linings. X
366 SCHEDULE “B”
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Miles 18,000 21,000 24,000 27,000 30,000
(Kilometers) (29 000) (34 000) (38 000) (43 000) (48 000)
Change the engine oil and engine oil filter, if not
replaced at 3 months.X X XXX
Rotate the tires. X X X
Inspect the engine air cleaner filter, replace if nec-
essary.X
Inspect the PCV Valve, replace if necessary. X
Replace the spark plugs.X
Lubricate the upper knuckle ball stud at steering &
suspension ball joints.XXX
Drain and refill the front and rear axles. X
Inspect the brake linings. X
Drain the transfer case and refill.X
SCHEDULE “B” 367
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Miles 33,000 36,000 39,000 42,000 45,000
(Kilometers) (53 000) (58 000) (62 000) (67 000) (72 000)
Change the engine oil and engine oil filter, if not
replaced at 3 months.X X XXX
Rotate the tires. X X
Inspect the engine air cleaner filter, replace if nec-
essary.X
Drain and refill the front and rear axles. X
Inspect the brake linings. X
Lubricate the upper knuckle ball stud at steering &
suspension ball joints.XX
368 SCHEDULE “B”
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Miles 48,000 51,000 54,000 57,000 60,000
(Kilometers) (77 000) (82 000) (86 000) (91 000) (96 000)
Change the engine oil and engine oil filter, if not
replaced at 3 months.X X XXX
Rotate the tires. X X X
Inspect the engine air cleaner filter, replace if nec-
essary.X
Inspect the PCV Valve, replace if necessary. X
Replace the spark plugs.X
Inspect the ignition cables, replace if necessary
(5.7L Only).X
Inspect drive belt, replace if necessary. X
Lubricate the upper knuckle ball stud at steering &
suspension ball joints.XXX
Inspect the brake linings. X X
SCHEDULE “B” 369
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Miles 48,000 51,000 54,000 57,000 60,000
(Kilometers) (77 000) (82 000) (86 000) (91 000) (96 000)
Drain and refill the front and rear axles. X X
Drain and refill the automatic transmission fluid,
and replace main sump filter (4.7L/5.7L Only).‡X
Drain and refill the transfer case fluid. X
Flush and replace engine coolant/anti-freeze at 60
months, if not done at 102,000 miles (163 000 km).X
NOTE:‡ Applies only if vehicle is used for frequent
trailer towing, or fleet/commercial service.
370 SCHEDULE “B”
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