EMISSION CONTROL SYSTEM MAINTENANCE
The “Scheduled” maintenance services, listed in bold
type
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 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
required
service for your vehicle.
First is Schedule
(
B
(
. 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
296
MAINTENANCE SCHEDULES
8
M
A
I
N
T
E
N
A
N
C
E
S
C
H
E
D
U
L
E
S
Summary of Contents for 2004 Grand Cherokee
Page 2: ......
Page 54: ......
Page 102: ...102 UNDERSTANDING THE FEATURES OF YOUR VEHICLE...
Page 126: ...INSTRUMENT PANEL AND INTERIOR CONTROLS 126 UNDERSTANDING YOUR INSTRUMENT PANEL...
Page 127: ...INSTRUMENT CLUSTER UNDERSTANDING YOUR INSTRUMENT PANEL 127 4...
Page 128: ...INSTRUMENT CLUSTER IF EQUIPPED 128 UNDERSTANDING YOUR INSTRUMENT PANEL...
Page 210: ...210 STARTING AND OPERATING...
Page 230: ...Minimum Vehicle Requirements for Trailer Towing 230 STARTING AND OPERATING...
Page 251: ...4 0L ENGINE MAINTAINING YOUR VEHICLE 251 7...
Page 252: ...4 7L 4 7 HO ENGINE 252 MAINTAINING YOUR VEHICLE...
Page 294: ......
Page 322: ...322 IF YOU NEED CONSUMER ASSISTANCE...
Page 326: ......
Page 327: ...INDEX 10...