DODGE MAGNUM 2008 1.G Owners Manual

MAINTAINING YOUR VEHICLE
CONTENTS
m2.7L Engine Compartment................384
m3.5L Engine Compartment................385
m5.7L Engine Compartment................386
mOnboard Diagnostic System Ð OBD II........387
NLoose Fuel Filler Cap..................387
mEmissions Inspection And Maintenance
Programs............................388
mReplacement Parts......................389
mDealer Service.........................390mMaintenance Procedures..................390
NEngine Oil..........................391
NEngine Oil Filter......................395
NDrive Belts Ð Check Condition And Tension . . 395
NSpark Plugs.........................396
NEngine Air Cleaner Filter................396
NFuel Filter..........................396
NCatalytic Converter....................397
NMaintenance-Free Battery................398
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NAir Conditioner Maintenance.............400
NA/C Air Filter Ð If Equipped............401
NPower Steering Ð Fluid Check............402
NFront & Rear Suspension Ball Joints........402
NSteering Linkage......................403
NBody Lubrication.....................403
NWiper Blades........................403
NWindshield Washers/Rear Window Washer . . . 404
NExhaust System......................404
NCooling System.......................405
NHoses And Vacuum/Vapor Harnesses.......410
NFuel System.........................411
NBrake System........................411NAutomatic Transmission................414
NAll Wheel Drive (AWD) Ð If Equipped.....415
NFront And Rear Wheel Bearings...........416
NAppearance Care And Protection From
Corrosion...........................416
NCleaning The Center Console Cup Holders . . . 420
mFuses (Power Distribution Centers)..........421
NFuses (Front Power Distribution Center).....421
NFuses (Rear Power Distribution Center)......423
mVehicle Storage........................428
mReplacement Light Bulbs.................429
mBulb Replacement......................430
NLow Beam Headlight, High Beam Headlight,
And Park/Turn Light..................430
382 MAINTAINING YOUR VEHICLE

NTail/Stop, Turn Signal Light, And Backup
Light..............................432
NLicense Light........................435
mFluids And Capacities...................436mFluids, Lubricants, And Genuine Parts........438
NEngine.............................438
NChassis............................440
MAINTAINING YOUR VEHICLE 383
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2.7L ENGINE COMPARTMENT
1 Ð Fuses (Front Power Distribution Center) 6 Ð Air Cleaner Filter
2 Ð Engine Oil Dipstick 7 Ð Coolant Pressure Cap
3 Ð Brake Fluid Reservoir Access Cover 8 Ð Engine Oil Fill
4 Ð Coolant Bottle 9 Ð Remote Jump-Start Positive Battery Post
5 Ð Power Steering Fluid 10 Ð Washer Fluid Bottle 384 MAINTAINING YOUR VEHICLE

3.5L ENGINE COMPARTMENT
1 Ð Fuses (Front Power Distribution Center) 6 Ð Coolant Bottle
2 Ð Air Cleaner Filter 7 Ð Engine Oil Fill
3 Ð Brake Fluid Reservoir Access Cover 8 Ð Engine Oil Dipstick
4 Ð Coolant Pressure Cap 9 Ð Washer Fluid Bottle
5 Ð Power Steering Fluid 10 Ð Remote Jump-Start Positive Battery PostMAINTAINING YOUR VEHICLE 385
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5.7L ENGINE COMPARTMENT
1 Ð Fuses (Front Power Distribution Center) 6 Ð Air Cleaner Filter
2 Ð Coolant Pressure Cap 7 Ð Engine Oil Fill
3 Ð Brake Fluid Reservoir Access Cover 8 Ð Engine Oil Dipstick
4 Ð Coolant Bottle 9 Ð Remote Jump-Start Positive Battery Post
5 Ð Power Steering Fluid 10 Ð Washer Fluid Bottle 386 MAINTAINING YOUR VEHICLE

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!
Prolonged driving with the ªMalfunction Indicator
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 performed.
If the ªMalfunction Indicator Lightº is flashing
while the engine is running, severe catalytic con-
verter damage and power loss will soon occur. Im-
mediate service is required.
Loose Fuel Filler Cap
If the vehicle diagnostic system determines that the fuel
filler cap is loose, improperly installed, or damaged, a
ªCheck Gascapº message will display in the Electronic
Vehicle Information Center (EVIC) Ð if equipped. If this
occurs, tighten the fuel filler cap properly and press the
MAINTAINING YOUR VEHICLE 387
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odometer reset button to turn off the message. If the
problem continues, the message will appear the next time
the vehicle is started.
A loose, improperly installed, or damaged fuel filler cap
may also turn on the Malfunction Indicator Light (MIL).
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 MIL (Malfunction Indicator Light)
is functioning and is not on when the engine is running,
and that the OBD (On Board 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 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 position, you
will see your MIL symbol come on as part of a normal
bulb check.
388 MAINTAINING YOUR VEHICLE

5. Approximately 15 seconds later, one of two things will
happen:
a. The MIL 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 shouldnot
proceed to the I/M station.
b. The MIL 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 MIL symbol 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 MIL symbol is on
with the engine running.
REPLACEMENT PARTS
Use of genuine Mopartparts for normal/scheduled
maintenance and repairs is highly recommended to in-
sure the designed performance. Damage or failures
caused by the use of non-Mopartparts for maintenance
and repairs will not be covered by the manufacturer's
warranty.
MAINTAINING YOUR VEHICLE 389
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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 vehicle.
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.WARNING!
You can be badly injured working on or around a
motor vehicle. Only do 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
mechanic.
MAINTENANCE PROCEDURES
The pages that follow contain therequiredmaintenance
services determined by the engineers who designed your
vehicle.
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.
390 MAINTAINING YOUR VEHICLE