Page 407 of 496

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 the “Vehicle Emission Control Informa-
tion” label in the engine compartment.
Engine Air Cleaner Filter
Under normal driving conditions, replace the air filter at
the intervals shown on Schedule “A”. If, however, you
drive the vehicle frequently under dusty or severe con-
ditions, the filter element should be inspected periodi-
cally and replaced if necessary at the intervals shown on
Schedule “B”.
WARNING!
The air cleaner can provide a measure of protection
in the case of engine backfire. Do not remove the air
cleaner 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 cleaner removed. Failure to do so can result in
serious personal injury.
Catalytic Converter
The catalytic converter requires the use of unleaded fuel
only. Leaded gasoline will destroy the effectiveness of the
catalyst as an emission control device.
MAINTAINING YOUR VEHICLE 407
7
Page 417 of 496

Engine Coolant Checks
Check the engine coolant (antifreeze) protection every 12
months (before the onset of freezing weather, where
applicable). If coolant is dirty or rusty in appearance, the
system should be drained, flushed and refilled with fresh
coolant. Check the front of the A/C condenser for any
accumulation of bugs, leaves, etc. If dirty, clean by gently
spraying water from a garden hose vertically down the
face of the condenser.
Check the coolant recovery bottle tubing for brittle rub-
ber, cracking, tears, cuts and tightness of the connection
at the bottle and radiator. Inspect the entire system for
leaks.
With the engine at normal operating temperature (but
not running), check the cooling system pressure cap for
proper vacuum sealing by draining a small amount of
coolant from the radiator drain cock. If the cap is sealing
properly, the engine coolant (antifreeze) will begin to drain from the coolant recovery bottle. DO NOT RE-
MOVE THE COOLANT PRESSURE CAP WHEN THE
COOLING SYSTEM IS HOT.
Cooling System — Drain, Flush and Refill
At the intervals shown on the Maintenance Schedules,
the system should be drained, flushed and refilled.
If the solution is dirty or contains a considerable amount
of sediment, clean and flush with a reliable cooling
system cleaner. Follow with a thorough rinsing to remove
all deposits and chemicals. Properly dispose of old
antifreeze solution.
Selection Of Engine Coolant
Use only the manufacturers recommended coolant, refer
to Fluids, Lubricants and Genuine Parts for correct
coolant type.
MAINTAINING YOUR VEHICLE 417
7
Page 460 of 496

Miles 138, 000 141, 000 144, 000 147, 000 150, 000
(Kilometers) (230 000) (235 000) (240 000) (245 000) (250 000)
Change engine oil and engine oil filter. XXXXX
Rotate Tires X X X
Inspect the brake linings. X
Inspect the engine air cleaner filter, replace if necessary. * XXXX
Replace the engine air cleaner filter. X
Replace the spark plugs on 3.3 liter and 3.8 liter engines. X
Inspect the serpentine drive belt on 3.3 liter and 3.8 liter
engines, replace if necessary. ‡ X
Inspect the tie rod ends and boot seals. X
Inspect the PCV valveand replace as necessary.* X
Replace the air conditioning filter. X
* This maintenance is recommended by the manufacture
to the owner but is not required to maintain the emis-
sions warranty.
‡ This maintenance is not required if previously replaced. \b
This maintenance is required only for police, taxi,
limousine type operation, or trailer towing.
Inspection and service should also be performed anytime a
malfunction is observed or suspected. Retain all receipts.
460 SCHEDULE “B”
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