2008 CHRYSLER PT CRUISER towing

ONBOARD DIAGNOSTIC SYSTEM Ð OBD II
Your vehicle is equipped with a sophisticated onboard
diagnostic system called OBD II. This system monitors
the performance of the emissions, engine, and automatic
transmission control systems. When these systems are
operating properly, your vehicle will provide excellent
performance and fuel economy, as well as engine emis-
sions well within current government regulations.
If any of these systems require service, the OBD II system
will turn on the ªMalfunction Indicator Light.º It will
also store diagnostic codes and other information to
assist your service technician in making repairs. Al-
though your vehicle will usually be drivable and not
need towing, see your dealer for service as soon as
possible.CAUTION!
²Prolonged driving with the ªMalfunction Indica-
tor Lightº on could cause further damage to the
emission control system. It could also affect fuel
economy and driveability. The vehicle must be
serviced before any emissions tests can be per-
formed.
²If the ªMalfunction Indicator Lightº is flashing
while the engine is running, severe catalytic con-
verter damage and power loss will soon occur.
Immediate service is required.
380 MAINTAINING YOUR VEHICLE

Checking the oil while the vehicle is on level ground, will
improve the accuracy of the oil level readings. Maintain
the oil level between the MIN and MAX markings on the
dipstick. Adding one quart of oil when the reading is at
the MIN mark will result in a MAX reading on these
engines.
CAUTION!
Overfilling the crankcase as indicated by an oil level
above the ªMaxº mark on the engine oil dipstick will
cause oil aeration, which can lead to loss of oil
pressure and an increase in oil temperature. This
could damage your engine.
Change Engine Oil
Road conditions and your kind of driving affects the
interval at which your oil should be changed. Check the
following list to decide if any apply to you.
²Day and night temperatures are below 32ÉF (0ÉC).
²Stop and Go driving.
²Extensive engine idling.
²Driving in dusty conditions.
²Short trips of less than 10 miles (16 km).
²More than 50% of your driving is at sustained high
speeds during hot weather, above 90ÉF (32ÉC).
²Trailer towing.
²Taxi, Police or delivery service (commercial service).
²Off-Road or desert operation.
²If equipped for and operating with E-85 (ethanol)
fuel.
NOTE:IfANYof these apply to you then change your
engine oil every 3,000 miles (5 000 km) or three months,
MAINTAINING YOUR VEHICLE 385
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WARNING!
A hot exhaust system can start a fire if you park over
materials that can burn. Such materials might be
grass or leaves coming into contact with your exhaust
system. Do not park or operate your vehicle in areas
where your exhaust system can contact anything that
can burn.
In unusual situations involving grossly malfunctioning
engine operation, a scorching odor may suggest severe
and abnormal catalyst overheating. If this occurs, stop
the vehicle, turn off the engine and allow it to cool.
Service, including a tune up to manufacturers specifica-
tions, should be obtained immediately.
To minimize the possibility of catalyst damage:
²Do not shut off the engine or interrupt the ignition
when the transaxle is in gear and the vehicle is in
motion.
²Do not try to start the engine by pushing or towing the
vehicle.
²Do not idle the engine with any spark plug wires
disconnected for prolonged period.
ENGINE TIMING BELT
Replace the engine timing belt at the intervals described
in the appropriate maintenance schedule.
CRANKCASE EMISSION CONTROL SYSTEM
Proper operation of this system depends on freedom
from sticking or plugging due to deposits. As vehicle
mileage builds up, the PCV valve and passages may
accumulate deposits. If a valve is not working properly,
replace it with a new valve. DO NOT ATTEMPT TO
CLEAN THE OLD PCV VALVE!
390 MAINTAINING YOUR VEHICLE

If the fluid level is low, add sufficient fluid through the
filler (dipstick) tube to bring it to the proper level. Do not
overfill.
CAUTION!
²Using a transmission fluid other than the manu-
facturer's recommended fluid may cause deterio-
ration in transmission shift quality and/or torque
converter shudder. Using a transmission fluid
other than that recommended by the manufacturer
will result in more frequent fluid and filter
changes. Refer to ªFluids, Lubricants, and Genu-
ine Partsº for the correct fluid type.
²Dirt and water in the transaxle can cause serious
damage. To prevent dirt and water from entering
the transaxle after checking or replenishing fluid,
make certain that the dipstick cap is re-seated
properly.
Fluid And Filter Changes
Automatic transmission fluid and filter should be
changed as follows:
Maintenance schedule ªAºÐNon Turbo Charged En-
gines± No change necessary.
Maintenance schedule ªAºÐTurbo Charged Engines±
No change necessary.
Maintenance schedule ªBºÐAll Engines± Every 60,000
miles (100 000 km) change fluid and filter under the
following conditions:
²Police, taxi, limousine, commercial type operation, or
trailer towing where the vehicle is drivenregularlyfor
more than 45 minutes of continuous operation.
NOTE:Refer to Section 8 of this manual for mainte-
nance schedules.
MAINTAINING YOUR VEHICLE 409
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EMISSIONS CONTROL SYSTEM MAINTENANCE
The Scheduled Maintenance services listed inbold type
must be done at the times or mileages specified to ensure
the continued proper functioning of the emission control
system. These, and all other maintenance services in-
cluded 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 should also be done any time a
malfunction is suspected.
NOTE:Maintenance, replacement, or repair of the emis-
sions control devices and systems on your vehicle may be
performed by any automotive repair establishment or
individual using any automotive part that has been
certified pursuant to U.S. EPA or, in the State of Califor-
nia, California Air Resources Board regulations.
MAINTENANCE SCHEDULE
There are three maintenance schedules that showre-
quiredservice for your vehicle.
First is ScheduleªBºÐALL ENGINES. It is for vehicles
that are operated under the conditions that are listed
below and at the beginning of the schedule.
²Day and night temperatures are below 32É F (0É C).
²Stop and go driving.
²Extensive engine idling.
²Driving in dusty conditions.
²Short trips of less than 10 miles (16 km).
²More than 50% of your driving is at sustained high
speeds during hot weather, above 90É F (32É C).
²Trailer towing.²L
434 MAINTENANCE SCHEDULES
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SCHEDULE ªBºÐALL ENGINES
Follow schedule ªBºÐAll Engines if you usually operate
your vehicle under one or more of the following condi-
tions.
Change the automatic transmission fluid and filter every
60,000 miles (100 000 km) if the vehicle is usually
operated under one or more of the conditions marked
with anL.
Change the manual transaxle fluid every 48,000 miles (80
000 km) if the vehicle is usually operated under one or
more of the conditions marked with an ².
²Day and night temperatures are below 32É F (0É C).
²Stop and go driving.
²Extensive engine idling.
²Driving in dusty conditions.
²Short trips of less than 10 miles (16.2 km).
²More than 50% of your driving is at sustained high
speeds during hot weather, above 90É F (32É C).
²Trailer towing.²L
²Taxi, police, or delivery service (commercial ser-
vice).²L
²Off-road or desert operation.
²If equipped for and operating with E-85 (ethanol)
fuel.
NOTE:IfANYof these apply to you then change your
engine oil every 3,000 miles (5 000 km) or 3 months,
whichever comes first, and follow schedule ªBÐAll
Enginesº of the9Maintenance Schedules9section of this
manual.
SCHEDULE ªBºÐALL ENGINES 437
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Miles 39,000 42,000 45,000 48,000 51,000 54,000
(Kilometers) (65 000) (70 000) (75 000) (80 000) (85 000) (90 000)
Change engine oil and engine oil filter, if not
replaced at 3 months.XXXXX X
Rotate tires. X X X
Inspect the brake linings. X
Change the brake fluid. If vehicle is used for
trailer towing.X
Inspect theengine air cleaner filter,replace as
necessary.*X
Change the manual transaxle fluid.² X
Inspect theMake-up air filter.Replace as nec-
essary.X
SCHEDULE ªBºÐALL ENGINES 441
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Miles 93,000 96,000 99,000 102,000 105,000
(Kilometers) (155 000) (160 000) (165 000) (170 000) (175 000)
Change engine oil and engine oil filter, if not re-
placed at 3 months.XXXXX
Rotate tires. X X
Inspect the brake linings. X
Change the brake fluid. If vehicle is used for trailer
towing.X
Inspect theengine air cleaner filterand replace as
necessary.*X
Change the manual transaxle fluid.² X
Replace theengine timing belt.*X
Flush and replace the engine coolant, if not replaced
at 60 months.X
Inspect theMake-up air filter,replace as necessary. X
444 SCHEDULE ªBºÐALL ENGINES
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