2008 DODGE MAGNUM spark plugs replace

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
7

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. Refer to ªFluids, Lubricants, and Genuine
Partsº in this section for the proper type of spark plug for
use in your vehicle.
Engine Air Cleaner Filter
Refer to the ªMaintenance Scheduleº in Section 8 of this
manual for engine air cleaner filter maintenance inter-
vals.
NOTE:Be sure to follow the ªdusty or off-road condi-
tionsº maintenance interval if applicable.
WARNING!
The air induction system (air cleaner, hoses, etc) can
provide a measure of protection in the case of engine
backfire. Do not remove the air induction system (air
cleaner, hoses, etc) 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 induction system (air cleaner,
hoses, etc) removed. Failure to do so can result in
serious personal injury.
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.
396 MAINTAINING YOUR VEHICLE

Perform Maintenance Every(Where time and mileage
are listed, follow the interval that occurs first.)
Maintenance Items Miles Kilometers or Months
Replace the engine air cleaner filter. 30,000 50 000 30
Inspect the transfer case fluid Ð All Wheel Drive
(AWD).30,000 50 000 30
Replace the spark plugs on 5.7L engines.30,000 50 000 30
Change the rear axle fluid if using your vehicle for
any of the following: police, taxi, fleet, off-road, or fre-
quent trailer towing.48,000 80 000 48
Change the automatic transmission fluid & filter if
using your vehicle for any of the following: police,
taxi, fleet, or frequent trailer towing.60,000 100 000 60
Change the transfer case fluid if using your vehicle for
any of the following: police, taxi, fleet, off-road, or fre-
quent trailer towing Ð All Wheel Drive (AWD).60,000 100 000 60
Inspect and replace the PCV valve if necessary.90,000 150 000 90
Flush and replace the engine coolant. 102,000 170 000 60
446 MAINTENANCE SCHEDULES
8
M
A
I
N
T
E
N
A
N
C
E
S
C
H
E
D
U
L
E
S

Perform Maintenance Every(Where time and mileage
are listed, follow the interval that occurs first.)
Maintenance Items Miles Kilometers or Months
Replace the spark plugs on 2.7L and 3.5L engines.102,000 170 000 102
Replace the timing belt on 3.5L engines.102,000 170 000 102
Change the automatic transmission fluid & filter. 120,000 200 000 120
Replace the accessory drive belt on 2.7L engines. 120,000 200 000 120
WARNING!
You can be badly injured working on or around a
motor vehicle. Do only service work for which you
have the knowledge and the right equipment. If you
have any doubt about your ability to perform a
service job, take your vehicle to a competent
mechanic.
MAINTENANCE SCHEDULES 447
8
M
A
I
N
T
E
N
A
N
C
E
S
C
H
E
D
U
L
E
S

INTRODUCTION INTRODUCTION HOW TO USE THIS MANUAL WARNINGS AND CAUTIONS VEHICLE IDENTIFICATION NUMBER VEHICLE MODIFICATIONS / ALTERATIONS THINGS TO KNOW BEFORE STARTING YOUR VEHICLE A WORD ABOUT YOUR KEYS
Wireless Ignition Node (WIN)Fob with Integrated KeyTip Start FeatureIgnition Key RemovalKey-In-Ignition ReminderSENTRY KEY Replacement KeysCustomer Key (Fob) ProgrammingGeneral InformationSECURITY ALARM SYSTEM - IF EQUIPPED Rearming of the
SystemTo Arm the SystemTo Disarm the SystemILLUMINATED ENTRY SYSTEM REMOTE KEYLESS ENTRY To unlock the doorsTo lock the doorsUsing The Panic AlarmProgramming Additional TransmittersTransmitter Battery ServiceGeneral InformationREMOTE
STARTING SYSTEM - IF EQUIPPED How To Use Remote StartDOOR LOCKS Manual Door LocksPower Door LocksChild Protection Door LockWINDOWS Power WindowsWind BuffetingLIFTGATE OCCUPANT RESTRAINTS Lap/Shoulder BeltsLap/Shoulder Belt Untwisting
ProcedureSeat Belt PretensionersEnhanced Seat Belt Reminder System (BeltAlert) Automatic Locking Mode - If EquippedSeat Belts and Pregnant WomenSeat Belt ExtenderDriver and Front Passenger Supplemental Restraint System (SRS) - AirbagEvent Data Recorder
(EDR)Child RestraintENGINE BREAK-IN RECOMMENDATIONS SAFETY TIPS Transporting PassengersLock Your VehicleExhaust GasSafety Checks You Should Make Inside The VehiclePeriodic Safety Checks You Should Make Outside The VehicleUNDERSTANDING
THE FEATURES OF YOUR VEHICLE MIRRORS Inside Day/Night MirrorAutomatic Dimming Inside Mirror - If EquippedOutside MirrorsExterior Mirrors FoldingFeature - If EquippedDrivers Side Outside Mirror Auto Dimmer - If EquippedPower Remote-Control MirrorsHeated
Remote Control Mirrors - If EquippedIlluminated Vanity Mirrors - If EquippedHANDS-FREE COMMUNICATION (UConnect) - IF EQUIPPED OperationPhone Call FeaturesUConnect System FeaturesAdvanced Phone ConnectivityThings You Should Know About Your
UConnect SystemGeneral InformationSEATS Manual Seats - If EquippedPower Seats - If EquippedPower Reclining Seats - If EquippedLumbar Support - If EquippedHead RestraintsHeated Seats - If EquippedFolding Rear Seat TO OPEN AND CLOSE THE HOOD LIGHTS
Headlight SwitchAutomatic Headlights - If EquippedHeadlights On with Wipers (Available with Auto Headlights Only)Headlight Time DelayDaytime Running Lights - If EquippedLights-on ReminderFog Lights - If EquippedMulti-Function LeverOverhead Console Map/Reading
LightsInterior LightsWINDSHIELD WIPERS AND WASHERS Intermittent Wiper SystemMist FeatureWindshield WashersHeadlights On with Wipers (Available with Auto Headlights Only)Adding Washer FluidTILT/TELESCOPING STEERING COLUMN ADJUSTABLE PEDALS
- IF EQUIPPED ELECTRONIC SPEED CONTROL Electronic Speed Control OperationTo ActivateTo Set At A Desired SpeedTo DeactivateTo Resume SpeedTo Vary the Speed SettingTo Accelerate For PassingOVERHEAD CONSOLE Courtesy/Reading LightsSunglasses
StorageGARAGE DOOR OPENER - IF EQUIPPED Programming HomeLinkGate Operator/Canadian ProgrammingUsing HomeLinkReprogramming a Single HomeLink ButtonSecurityTroubleshooting TipsGeneral InformationPOWER SUNROOF - IF EQUIPPED Opening
Sunroof - ExpressClosing Sunroof - ExpressPinch Protect FeaturePinch Protect OverrideVenting Sunroof - ExpressSunshade OperationWind BuffetingSunroof MaintenanceIgnition Off OperationSunroof Fully ClosedELECTRICAL POWER OUTLETS Electrical Outlet Use
With Engine OffCUP HOLDERS Front Seat Cup HoldersRear Seat Cup HoldersSTORAGE Console FeaturesCargo Management System - If EquippedROOF LUGGAGE RACK - IF EQUIPPED LOAD LEVELING SYSTEM - IF EQUIPPED UNDERSTANDING YOUR
INSTRUMENT PANEL INSTRUMENT PANEL AND CONTROLS BASE INSTRUMENT CLUSTER PREMIUM INSTRUMENT CLUSTER - IF EQUIPPED INSTRUMENT CLUSTER DESCRIPTIONS ELECTRONIC VEHICLE INFORMATION CENTER (EVIC) - IF EQUIPPED
Electronic Vehicle Information Center (EVIC) DisplaysOil Change RequiredTrip FunctionsCompass DisplayTelephone - If EquippedNavigation - If EquippedPersonal Settings (Customer Programmable Features)RADIO GENERAL INFORMATION Radio Broadcast Signals
Two Types of SignalsElectrical DisturbancesAM ReceptionFM ReceptionSALES CODE REN - MULTIMEDIA SYSTEM - IF EQUIPPED Operating Instructions - Satellite Radio (If Equipped)Operating Instructions - Hands-Free Communication (UConnect) (If Equipped)Clock
Setting ProcedureSALES CODE REQ - AM/FM STEREO RADIO AND 6-DISC CD/DVD CHANGER (MP3/WMA AUX JACK) Operating Instructions - Radio ModeOperation Instructions - (DISC MODE for CD and MP3/WMA Audio Play, DVD-VIDEO)Notes On Playing
MP3/WMA FilesLIST Button (DISC Mode for MP3/WMA Play)INFO Button (DISC Mode for MP3/WMA Play)SALES CODE RER - MULTIMEDIA SYSTEM - IF EQUIPPED Operating Instructions - Satellite RadioOperating Instructions - Hands-Free Communication (UConnect)
(If Equipped)Clock Setting ProcedureSALES CODE RES - AM/FM STEREO RADIO WITH CD PLAYER (MP3 AUX JACK) Operating Instructions - Radio ModeOperation Instructions - CD MODE for CD and MP3 Audio PlayNotes On Playing MP3 FilesLIST Button (CD Mode
for MP3 Play)INFO Button (CD Mode for MP3 Play)SATELLITE RADIO (RSC) - IF EQUIPPED (RER/REQ/REN RADIOS ONLY) System ActivationElectronic Serial Number/Sirius Identification Number (ENS/SID)Selecting Satellite ModeSatellite AntennaReception Quality
Operating Instructions - Satellite ModeOperating Instructions - Hands Free Phone (If Equipped)Operating Instructions - Video Entertainment System (VES) (If Equipped)VIDEO ENTERTAINMENT SYSTEM - IF EQUIPPED UNIVERSAL CONSUMER INTERFACE (UCI) -
IF EQUIPPED Connecting the iPod DeviceControlling the iPod using Radio ButtonsPlay ModeList or Browse ModeREMOTE SOUND SYSTEM CONTROLS CD/DVD DISCMAINTENANCE RADIO OPERATION AND CELLULAR PHONES CLIMATE CONTROLS Manual
Air Conditioning and Heating System Automatic Temperature Control - If Equipped Operating TipsREAR WINDOW FEATURES Rear Wiper OperationRear Washer OperationAdding Washer FluidElectric Rear Window DefrosterSTARTING AND OPERATING STARTING
PROCEDURES Automatic TransmissionNormal Starting (Tip Start)Extremely Cold Weather (below -20 degrees F or -29 degrees C)If Engine Fails To StartAfter StartingENGINE BLOCK HEATER - IF EQUIPPED AUTOMATIC TRANSMISSION Automatic Transmission -
General InformationBrake/Transmission Shift Interlock System4 Speed Automatic Transmission5 Speed Automatic TransmissionAUTOSTICK - IF EQUIPPED Autostick OperationALL WHEEL DRIVE - IF EQUIPPED DRIVING ON SLIPPERY SURFACES AccelerationTraction
DRIVING THROUGH WATER Flowing/Rising WaterShallow Standing WaterPARKING BRAKE BRAKE SYSTEM Anti-Lock Brake System - If EquippedPOWER STEERING MULTI DISPLACEMENT SYSTEM (MDS) - 5.7L Engine Only TRACTION CONTROL SYSTEM (TCS)
- IF EQUIPPED BRAKE ASSIST SYSTEM (BAS) - IF EQUIPPED ELECTRONIC STABILITY PROGRAM (ESP) - IF EQUIPPED Synchronizing ESPESP/BAS Malfunction Indicator and ESP/TCS Indicator LightsTIRE SAFETY INFORMATION Tire Markings Tire Identification
Number (TIN)Tire Loading and Tire PressureTIRES - GENERAL INFORMATION Tire PressureTire Inflation PressuresRadial-Ply TiresCompact Spare Tire -If EquippedLimited Use Spare - If EquippedTire SpinningTread Wear IndicatorsLife of TireReplacement TiresAlignment
And BalanceSELF-SEALING TIRES - IF EQUIPPED TIRE CHAINS SNOW TIRES TIRE ROTATION RECOMMENDATIONS TIRE PRESSURE MONITOR SYSTEM (TPMS) - IF EQUIPPED Base System - If EquippedPremium System - If EquippedGeneral InformationFUEL
REQUIREMENTS 2.7L Engine3.5L and 5.7L EnginesReformulated GasolineGasoline/Oxygenate BlendsMMT In GasolineMaterials Added to FuelFuel SystemCautionsCarbon Monoxide WarningsADDING FUEL Fuel Filler Cap (Gas Cap)Loose Fuel Filler Cap Message
VEHICLE LOADING Vehicle Certification LabelGross Vehicle Weight Rating (GVWR)Gross Axle Weight Rating (GAWR)OverloadingLoadingTRAILER TOWINGCommon Towing DefinitionsTrailer Hitch ClassificationTrailer Towing Weights (Maximum Trailer Weight Ratings)
Trailer and Tongue WeightTowing RequirementsTowing TipsRECREATIONAL TOWING (BEHIND MOTORHOME, ETC.) TOWING THIS VEHICLE BEHIND ANOTHER VEHICLE(Flat towing with all four wheels on the ground)WHAT TO DO IN EMERGENCIES HAZARD
WARNING FLASHER IF YOUR ENGINE OVERHEATS JACKING AND TIRE CHANGING Preparations For JackingJack Location/Spare Tire StowageJacking and Changing aTireCompact Spare TireWheel Cover or Center Cap Installation (If Required)JUMP-STARTING
PROCEDURES FREEING A STUCK VEHICLE TOWING A DISABLED VEHICLE WITHOUT THE IGNITION KEYTOWING THIS VEHICLE BEHIND ANOTHER VEHICLE (Flat towing with all four wheels on the ground)TOWING THIS VEHICLE BEHIND ANOTHER VEHICLE
WITH A TOW DOLLYMAINTAINING YOUR VEHICLE 2.7L ENGINE COMPARTMENT 3.5L ENGINE COMPARTMENT 5.7L ENGINE COMPARTMENT ONBOARD DIAGNOSTIC SYSTEM - OBD IILoose Fuel Filler CapEMISSIONS INSPECTION AND MAINTENANCE
PROGRAMS REPLACEMENT PARTS DEALER SERVICE MAINTENANCE PROCEDURES Engine OilEngine Oil FilterDrive Belts - Check Condition and TensionSpark PlugsEngine Air Cleaner FilterFuel FilterCatalytic ConverterMaintenance-Free BatteryAir Conditioner
MaintenanceA/C Air Filter - If EquippedPower Steering - Fluid CheckFront and Rear Suspension Ball JointsSteering LinkageBody LubricationWiper BladesWindshield Washers/Rear Window WasherExhaust SystemCooling SystemHoses and Vacuum/Vapor HarnessesFuel
SystemBrake SystemAutomatic TransmissionAll Wheel Drive (AWD) - If EquippedFront and Rear Wheel BearingsAppearance Care and Protection from CorrosionCleaning the Center Console Cup HoldersFUSES (POWER DISTRIBUTION CENTERS) Fuses (Front Power
Distribution Center)Fuses (Rear Power Distribution Center)VEHICLE STORAGE REPLACEMENT LIGHT BULBS BULB REPLACEMENT Low Beam Headlight, High Beam Headlight, and Park/Turn LightTail/Stop, Turn Signal Light, and Backup LightLicense LightFLUIDS
AND CAPACITIES FLUIDS, LUBRICANTS, AND GENUINE PARTS EngineChassisMAINTENANCE SCHEDULES EMISSION CONTROL SYSTEM MAINTENANCE MAINTENANCE SCHEDULE Required Maintenance IntervalsIF YOU NEED CONSUMER ASSISTANCE
SUGGESTIONS FOR OBTAINING SERVICE FOR YOUR VEHICLE Prepare For The AppointmentPrepare A ListBe Reasonable With RequestsIF YOU NEED ASSISTANCE WARRANTY INFORMATION (U.S. Vehicles Only) MOPAR PARTS REPORTING SAFETY DEFECTS
In CanadaPUBLICATION ORDER FORMS DEPARTMENT OF TRANSPORTATION UNIFORM TIRE QUALITY GRADES TreadwearTraction GradesTemperature GradesINDEX