2008 DODGE MAGNUM SRT fuel

MAINTAINING YOUR VEHICLE
CONTENTS

6.1L Engine Compartment................380

Onboard Diagnostic System — OBD II........381
▫Loose Fuel Filler Cap..................382

Emissions Inspection And Maintenance
Programs............................382

Replacement Parts......................384

Authorized Dealer Service................384

Maintenance Procedures..................384
▫Engine Oil..........................385▫Engine Oil Filter......................387
▫Drive Belts — Check Condition And Tension . . 387
▫Spark Plugs.........................388
▫Engine Air Cleaner Filter................388
▫Fuel Filter..........................389
▫Catalytic Converter....................389
▫Maintenance-Free Battery................390
▫Air Conditioner Maintenance.............392
▫A/C Air Filter — If Equipped............393
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▫Power Steering — Fluid Check............394
▫Front And Rear Suspension Ball Joints......394
▫Steering Linkage......................395
▫Body Lubrication.....................395
▫Wiper Blades........................395
▫Windshield Washers/Rear Window Washer . . . 396
▫Exhaust System......................396
▫Cooling System.......................397
▫Hoses And Vacuum/Vapor Harnesses.......402
▫Fuel System.........................403
▫Brake System........................403
▫Automatic Transmission................406
▫Front And Rear Wheel Bearings...........407▫Appearance Care And Protection
From Corrosion......................408
▫Cleaning The Center Console Cupholders....412

Fuses (Power Distribution Centers)..........413
▫Fuses (Front Power Distribution Center).....413
▫Fuses (Rear Power Distribution Center)......415

Vehicle Storage........................420

Replacement Light Bulbs.................420

Bulb Replacement......................421
▫Low Beam Headlight, High Beam Headlight, And
Park/Turn Light — Models With Halogen
Headlights..........................421
▫Low Beam Headlight, High Beam Headlight, And
Park/Turn Light — Models With High Intensity
Discharge Headlights (HID)..............423
378 MAINTAINING YOUR VEHICLE

ONBOARD DIAGNOSTIC SYSTEM — 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 Malfunction Indicator Light (MIL). 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 authorized dealer for service as
soon as possible.CAUTION!
Prolonged driving with the “MIL” on could cause
further damage to the emissions control system. It
could also affect fuel economy and driveability. The
vehicle must be serviced before any emissions tests
can be performed.
If the “MIL” is flashing while the engine is running,
severe catalytic converter damage and power loss
will soon occur. Immediate service is required.
MAINTAINING YOUR VEHICLE 381
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Loose Fuel Filler Cap
If the vehicle diagnostic system determines that the fuel
filler cap is loose, improperly installed, or damaged, a
“Check Gascap” message will display in the Electronic
Vehicle Information Center (EVIC) (if equipped). If this
occurs, tighten the fuel filler cap properly and press the
TRIP ODOMETER 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 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 that require an I/M (Inspection and
Maintenance), this check verifies the MIL is func-
tioning and is not on when the engine is running,
and that the OBD II system is ready for testing.
Normally, the OBD system will be ready. The OBD II
system maynotbe ready if your vehicle was recently
serviced or recently had a dead battery or had a battery
replacement. If the OBD II 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 II 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.
382 MAINTAINING YOUR VEHICLE

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.
The best time to check the engine oil level is about five
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 in the “SAFE” range. Adding 1.0 qt (1.0L) of
oil when the reading is at the bottom of the “SAFE” range
will result in an oil level at the top of the “SAFE” range
on these engines.
CAUTION!
Overfilling or underfilling will cause oil aeration or
loss of oil pressure. This could damage your engine.
Engine Oil Dipstick
MAINTAINING YOUR VEHICLE 385
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Fuel Filter
A plugged fuel filter can cause stalling, limit the speed at
which a vehicle can be driven or cause hard starting.
Should an excessive amount of dirt accumulate in the
fuel tank, filter replacement may be necessary. See your
authorized dealer for service.
Catalytic Converter
The catalytic converter requires the use of unleaded fuel
only. Leaded gasoline will destroy the effectiveness of the
catalyst as an emissions control device.
Under normal operating conditions, the catalytic con-
verter will not require maintenance. However, it is im-
portant to keep the engine properly tuned to assure
proper catalyst operation and prevent possible catalyst
damage.
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.
NOTE:Intentional tampering with emissions control
systems can result in civil penalties being assessed
against you.
MAINTAINING YOUR VEHICLE 389
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Ensure nylon tubing in these areas has not melted or
collapsed.
Inspect all hose connections such as clamps and cou-
plings to make sure they are secure and no leaks are
present.
Components should be replaced immediately if there is
any evidence of wear or damage that could cause failure.
Fuel System
The Electronic Fuel Injection high-pressure fuel system’s
hoses and quick connect fittings have unique material
characteristics that provide adequate sealing and resist
attack by deteriorated gasoline.
You are urged to use only the manufacturer’s specified
hoses with quick connect fittings, or their equivalent in
material and specification, in any fuel system servicing. It
is mandatory to replace any damaged hoses or quick
connect fittings that have been removed during service.Care should be taken with installing quick connect
fittings to ensure they are properly installed and fully
connected. See your authorized dealer for service.
Brake System
In order to assure brake system performance, all brake
system components should be inspected periodically.
Suggested service intervals can be found in the “Mainte-
nance Schedule” in Section 8.
WARNING!
Riding the brakes can lead to brake failure and
possibly an accident. Driving with your foot resting
or riding on the brake pedal can result in abnormally
high brake temperatures, excessive lining wear, and
possible brake damage. You wouldn’t have your full
braking capacity in an emergency.
MAINTAINING YOUR VEHICLE 403
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Cavity Car-
tridge
FuseMini-
FuseDescription
1 60 Amp
Yellow— Ignition Off Draw (IOD)
2 40 Amp
Green— Integrated Power Mod-
ule (IPM)
3———
4 40 Amp
Green— Integrated Power Mod-
ule (IPM)
5 30 Amp
Pink— Heated Seats - if
equipped
6 — 20 Amp
YellowFuel Pump
7 — 20 Amp
YellowSub Amp - if equippedCavity Car-
tridge
FuseMini-
FuseDescription
8 — 15 Amp
BlueDiagnostic Link Connec-
tor (DLC)/Wireless Con-
trol Module (WCM)/
Wireless Ignition Node
(WIN)
9 — 20 Amp
YellowPower Outlet
10 — — —
11*———
12*———
13*———
14 — 10 Amp
RedAC Heater Control/
Cluster/Security Mod-
ule - if equipped
15 — 20 Amp
YellowTrailer Tow Brake Mod-
ule - if equipped
MAINTAINING YOUR VEHICLE 417
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