MAINTAINING YOUR VEHICLE
CONTENTS
m3.3L Engine Compartment................434
m3.8L Engine Compartment................435
m4.0L Engine Compartment................436
mOnboard Diagnostic System Ð OBD II........437
NLoose Fuel Filler Cap Message Ð gASCAP . . . 438
mEmissions Inspection And Maintenance
Programs............................438
mReplacement Parts......................440
mAuthorized Dealer Service................440mMaintenance Procedures..................441
NEngine Oil..........................441
NEngine Oil Filter......................444
NDrive Belt...........................445
NSpark Plugs.........................445
NEngine Air Cleaner....................445
NCatalytic Converter....................446
NMaintenance-Free Battery................448
NAir Conditioner Maintenance.............450
7
DRIVE BELT
At the mileage indicated in the maintenance schedule,
replace the drive belt with a new drive belt.
NOTE:The drive belt must be routed correctly to ensure
proper drive function.
SPARK PLUGS
Spark plugs must fire properly to assure engine perfor-
mance and emission control. New plugs should be in-
stalled at the specified mileage. The entire set should be
replaced if there is any malfunction due to a faulty spark
plug. Malfunctioning spark plugs can damage the cata-
lytic converter. For proper type of replacement spark
plugs, refer to Fluids, Lubricants and Genuine Parts for
correct spark plug type.
ENGINE AIR CLEANER
Refer to the ªMaintenance Scheduleº in Section 8 of this
manual for engine air cleaner filter maintenance inter-
vals.
NOTE:Be sure to follow the ªdusty or off-road condi-
tionsº maintenance interval if applicable.
WARNING!
The air induction system (air cleaner, hoses, etc.) can
provide a measure of protection in the case of engine
backfire. Do not remove the air induction system (air
cleaner, hoses, etc.) unless such removal is necessary
for repair or maintenance. Make sure that no one is
near the engine compartment before starting the
vehicle with the air induction system (air cleaner,
hoses, etc.) removed. Failure to do so can result in
serious personal injury.
MAINTAINING YOUR VEHICLE 445
7
Perform Maintenance Every(Where time and mileage
are listed, follow the interval that occurs first.)
Maintenance Items Miles Kilometers or Months
Change the automatic transmission fluid & filter if
using your vehicle for any of the following: police,
taxi, fleet or frequent trailer towing.60,000 100 000 60
Inspect and replace PCV valve if necessary. ² 90,000 150 000 90
Flush and replace the engine coolant. 102,000 170 000 60
Replace the ignition cables on 3.3L, 3.8L engines. 102,000 170 000 102
Replace the spark plugs on 3.3L, 3.8L, 4.0L engines. 102,000 170 000 102
Replace the timing belt on 4.0L engines. 102,000 170 000 102
Change the automatic transmission fluid & filter. 120,000 200 000 120
Replace Accessory Drive Belt(s). 120,000 200 000 120
² This maintenance is recommended by the manufacturer to the owner, but is not required to maintain emissions
warranty.
494 MAINTENANCE SCHEDULES
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