engine CHRYSLER CROSSFIRE SRT 2005 1.G Repair Manual

3.2L SRT ENGINE
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ONBOARD DIAGNOSTIC SYSTEM (OBD II)
To meet new government regulations and promote
cleaner air, your Crossfire is equipped with a sophisti-
cated onboard diagnostic system called OBD II. This
system monitors the performance of the emissions and
engine control systems. When these systems are operat-
ing properly, your vehicle will provide excellent perfor-
mance and fuel economy, as well as engine emissions
well within current government regulations.
If any of these systems require service, the OBD II system
will turn on the CHECK ENGINE Light. It will also store
diagnostic codes and other information to assist your
service technician in making repairs. Although your
vehicle will usually be drivable and not need towing, see
your authorized dealer for service as soon as possible.CAUTION!
Prolonged driving with the CHECK ENGINE light
on could cause further damage to the emission
control system. It could also affect fuel economy and
drivability. The vehicle must be serviced before any
state emissions tests can be performed.
If the CHECK ENGINE light is flashing, severe catalytic
converter damage and power loss will soon occur. Im-
mediate service is required.
If the gas cap is not tightened properly, the CHECK
ENGINE light may come on. Be sure the gas cap is
tightened every time you add fuel. Tighten the cap until
you hear it“click”once.
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EMISSIONS INSPECTION AND MAINTENANCE
PROGRAMS
In some localities, it may be a legal requirement to pass
an inspection of your vehicle’s emissions control system.
Failure to pass could prevent vehicle registration.
For states which have an I/M (Inspection and
Maintenance) requirement, this check verifies
the following: the CHECK ENGINE Light is functioning
and is not on when the engine is running, and that the
OBD (Onboard Diagnostic) system is ready for testing.
Normally, the OBD system will be ready. The OBD
system maynotbe ready if your vehicle was recently
serviced, if you recently had a dead battery, or a battery
replacement. If the OBD system should be determined
not ready for the I/M test, your vehicle may fail the test.
Your vehicle has a simple ignition key actuated test
which you can use prior to going to the test station. To
check if your vehicle’s OBD system is ready, you must do
the following:1. Insert your ignition key into the ignition switch.
2. Turn the ignition to the ON/RUN position, but do not
crank or start the engine.
3. If you crank or start the engine, you will have to start
this test over.
4. As soon as you turn your key to the ON/RUN
position, you will see your CHECK ENGINE light come
on as part of a normal bulb check.
5. Approximately 15 seconds later, one of two things will
happen:
a. The CHECK ENGINE light will flash for about 10
seconds and then return to being fully illuminated
until you turn off the ignition key or start the
engine. This means that your vehicle’s OBD system
isnot readyand you shouldnotproceed to the I/M
station.
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b. The CHECK ENGINE light will not flash at all
and will remain fully illuminated until you turn off
the ignition key or start the engine. This means that
your vehicle’s OBD system isreadyand you can
proceed to the I/M station.
If your OBD system isnot ready,you should see your
authorized dealer or repair facility. If your vehicle was
recently serviced or had a battery failure or replacement,
you may need to do nothing more than drive your
vehicle as you normally would in order for your OBD
system to update. A recheck with the above test routine
may then indicate that the system is now ready.
Regardless of whether your vehicle’s OBD system is
ready or not ready, if the CHECK ENGINE light is
illuminated during normal vehicle operation, you should
have your vehicle serviced before going to the I/M
station. The I/M station can fail your vehicle because the
CHECK ENGINE light is on with the engine running.
REPLACEMENT PARTS
Use of genuine Moparparts for normal/scheduled
maintenance and repairs is highly recommended to in-
sure the designed performance. Damage or failures
caused by the use of non-Moparparts for maintenance
and repairs will not be covered by the warranty offered
by DaimlerChrysler Corporation.
DEALER SERVICE
Your dealer has the qualified service personnel, special
tools and equipment to perform all service operations in
an expert manner. Service Manuals are available which
include detailed service information for your Crossfire.
Refer to these manuals before attempting any procedure
yourself.
NOTE:Intentional tampering with emissions control
systems can result in civil penalties being assessed
against you.
194 MAINTAINING YOUR VEHICLE

WARNING!
You can be badly injured working on or around a
motor vehicle. Do only that service work for which
you have the knowledge and the proper equipment.
If you have any doubt about your ability to perform
a service job, take your vehicle to a competent
technician.
MAINTENANCE PROCEDURES
The pages that follow contain the maintenance service
recommended by the engineers who designed your ve-
hicle.
Besides the maintenance items for which there are fixed
maintenance intervals, there are other items that should
operate satisfactorily without periodic maintenance.
However, if a malfunction of these items does occur, it
could adversely affect the engine or vehicle performance.
These items should be inspected if a malfunction is
observed or suspected.
Engine Oil
Checking Oil Level
To assure proper engine lubrication, the engine oil must
be maintained at the correct level. Check the oil level at
regular intervals, such as every fuel stop.
You can check the oil level using the procedure described
in Checking Engine Oil Level in the Understanding Your
Instrument Panel section, or by checking the engine oil
dipstick.
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The best time to check the engine oil level is about 5
minutes after a fully warmed engine is shut off, or before
starting the engine after it has sat overnight.
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 this
engine.
196 MAINTAINING YOUR VEHICLE

Change Engine Oil
The oil change interval for your Crossfire is initially set at
7,000 miles (Canada: 11,000 km).
The Flexible Service System (FSS) in your vehicle evalu-
ates engine temperature, oil level, vehicle speed, engine
speed, distance driven, and the time elapsed since your
last service. It determines when your vehicle needs
maintenance service and alerts you in advance. The next
necessary service is indicated by the FSS in your instru-
ment cluster.
NOTE:Also see the FSS system details in the Under-
standing Your Instrument Panel section of this manual.
Very light duty driving cycles (most trips more than 10
miles [16 km] at moderate speeds in moderate tempera-
ture conditions) can extend the service interval beyond
7,000 miles (Canada: 11,000 km).
IfANYof the following apply to your driving, the oil
change interval can be reduced significantly:
•Day and night temperatures are below 32°F(0°C)
•Stop-and-go driving
•Extensive engine idling
•Driving in dusty conditions
•Short trips of less than 10 miles (16 km)
•More than 50% of your driving is at sustained high
speeds during hot weather, above 90°F (32°C)
•Taxi, Police, or delivery service (commercial service)
Observe the oil change interval indicated by your FSS
system. This system will monitor the driving conditions
seen by your vehicle, and will recommend the best
interval for servicing your vehicle to maintain it in top
condition.
CAUTION!
Overfilling or underfilling the crankcase will cause
oil aeration or loss of oil pressure. This could dam-
age your engine.
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Engine Oil Selection
For best performance and maximum protection under all
types of operating conditions, only use synthetic engine
oils, approved to MB 229.3 or MB 229.5, such as Mobil 1
SAE 0W-40. The FSS may not alert for an oil change at the
proper interval if an unapproved engine oil is used;
engine damage and reduced engine life may result.
Materials Added To Engine Oils
Do not add materials (other than leak detection dyes) to
engine oil. Engine oil is an engineered product and its
performance may be impaired by supplemental addi-
tives.
Disposing of Used Engine Oil
Care should be taken in disposing of used engine oil from
your vehicle. Used oil, indiscriminately discarded, can
present a problem to the environment. Contact your
dealer, service station, or governmental agency for advice
on how and where used oil can be safely discarded in
your area.
Engine Oil Filter
The engine oil filter should be replaced at every engine
oil change.
Engine Oil Filter Selection
All DaimlerChrysler Corporation engines have a full-
flow type disposable oil filter. Use a filter of this type for
replacement. The quality of replacement filters varies
considerably. Only high quality filters should be used to
assure most efficient service. MoparEngine Oil Filters
are high quality oil filters and are recommended.
198 MAINTAINING YOUR VEHICLE

Drive Belts - Check Condition and Tension
At the distance shown in the maintenance schedules,
check all drive belts for condition and proper tension.
Improper belt tension can cause belt slippage and failure.
Inspect the drive belts for evidence of cuts, cracks, or
glazing and replace them if there is any sign of damage
which could result in belt failure. If adjustment is re-
quired, adjust the belts according to the specifications
and procedures shown in the Service Manual.
Special tools are required to properly measure tension
and to restore belt tension to factory specifications. Also,
check belt routing to make sure there is no interference
between the belts and other engine components.
Spark Plugs
Spark plugs must fire properly to assure engine perfor-
mance and emission control. New plugs should be in-
stalled at the distance specified in the appropriate main-
tenance chart. The entire set should be replaced if there is
any malfunction due to a faulty spark plug. Check the
specifications section for the proper type of spark plug
for use in your vehicle.
Engine Air Cleaner Filter
Under normal driving conditions, replace the air filter at
each interval called out by FSS.
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.
Engine Fuel Filter
A plugged fuel filter can cause hard starting or limit the
speed at which a vehicle can be driven. Should an
excessive amount of dirt accumulate in the fuel tank,
frequent filter replacement may be necessary. See your
authorized dealer for service.
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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.
Under normal operating conditions, the catalytic con-
verter will not require maintenance. However, it is im-
portant to keep the engine properly serviced to assure
proper catalyst operation and prevent possible catalyst
damage.
If the CHECK ENGINE light is flashing, immediate
service is required.CAUTION!
Damage to the catalytic converter can result if your
vehicle is not kept in proper operating condition. In
the event of engine malfunction, particularly involv-
ing engine misfire or other apparent loss of perfor-
mance, have your vehicle serviced promptly. Contin-
ued operation of your vehicle with a severe
malfunction could cause the converter to overheat,
resulting in possible damage to the converter and the
vehicle.
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 ex-
haust system. Do not park or operate your vehicle in
areas where your exhaust system can contact any-
thing that can burn.
200 MAINTAINING YOUR VEHICLE