2008 DODGE DURANGO air condition

check tire pressure. Do not make a visual judgement
when determining proper inflation. Radial tires may look
properly inflated even when they are under inflated.
CAUTION!
After inspecting or adjusting the tire pressure, al-
ways reinstall the valve stem cap (if equipped). This
will prevent moisture and dirt from entering the
valve stem, which could damage the valve stem.
Inflation pressures specified on the placard are always
ªcold tire inflation pressure.º Cold tire inflation pressure
is defined as the tire pressure after the vehicle has not
been driven for at least 3 hours, or driven less than 1 mile
(1 km) after a 3 hour period. The cold tire inflation
pressure must not exceed the maximum inflation pres-
sure molded into the tire sidewall.Check tire pressures more often if subject to a wide range
of outdoor temperatures, as tire pressures vary with
temperature changes.
Tire pressures change by approximately 1 psi (7 kPa) per
12 ÉF (7 ÉC) of air temperature change. Keep this in mind
when checking tire pressure inside a garage, especially in
the winter.
Example: If garage temperature = 68 ÉF (20 ÉC) and the
outside temperature = 32 ÉF (0 ÉC) then the cold tire
inflation pressure should be increased by 3 psi (21 kPa),
which equals 1 psi (7 kPa) for every 12 ÉF (7 ÉC) for this
outside temperature condition.
Tire pressure may increase from 2 to 6 psi (13 to 40 kPa)
during operation. DO NOT reduce this normal pressure
build up or your tire pressure will be too low.
STARTING AND OPERATING 315
5

original equipped tire on the front or rear axle of your
vehicle, but it is not. Installation of this limited use spare
tire affects vehicle handling. Since it is not the same tire,
replace (or repair) the original tire and reinstall on the
vehicle at the first opportunity.
WARNING!
The limited use spare tires are for emergency use
only. Installation of this limited use spare tire affects
vehicle handling. With this tire, do not drive more
than 60 mph (100 km/h). Keep inflated to the cold tire
inflation pressure listed on either your tire placard or
limited use spare tire and wheel assembly. Replace
(or repair) the original tire at the first opportunity
and reinstall it on your vehicle. Failure to do so could
result in loss of vehicle control.
Tire Spinning
When stuck in mud, sand, snow, or ice conditions, do not
spin your vehicle's wheels faster than 30 mph (48 km/h)
or for longer than 30 seconds continuously without
stopping when you are stuck.
Refer to ªFreeing A Stuck Vehicleº in Section 6 of this
manual for additional information.
WARNING!
Fast spinning tires can be dangerous. Forces gener-
ated by excessive wheel speeds may cause tire dam-
age or failure. A tire could explode and injure some-
one. Do not spin your vehicle's wheels faster than 30
mph (48 km/h) or for more than 30 seconds continu-
ously when you are stuck, and don't let anyone near
a spinning wheel, no matter what the speed.
318 STARTING AND OPERATING

Materials Added To Fuel
All gasolines sold in the United States are required to
contain effective detergent additives. Use of additional
detergents or other additives is not needed under normal
conditions and would result in unnecessary cost. There-
fore, you should not have to add anything to the fuel.
Fuel System Cautions
CAUTION!
Follow these guidelines to maintain your vehicle's performance:
²The use of leaded gas is prohibited by Federal law. Using
leaded gasoline can impair engine performance, damage the
emission control system.
²An out-of-tune engine, or certain fuel or ignition malfunc-
tions, can cause the catalytic converter to overheat. If you
notice a pungent burning odor or some light smoke, your
engine may be out of tune or malfunctioning and may require
immediate service. Contact your dealer for service assistance.
²When pulling a heavy load or driving a fully loaded vehicle
when the humidity is low and the temperature is high, use a
premium unleaded fuel to help prevent spark knock. If spark
knock persists, lighten the load, or engine piston damage may
result.
²The use of fuel additives which are now being sold as octane
enhancers is not recommended. Many of these products
contain high concentrations of methanol. Fuel system damage
or vehicle performance problems resulting from the use of
such fuels or additives is not the responsibility of the
manufacturer.
STARTING AND OPERATING 335
5

NOTE:Intentional tampering with emissions control sys-
tems can result in civil penalties being assessed against you.
Carbon Monoxide Warnings
WARNING!
Carbon monoxide (CO) in exhaust gases is deadly. Follow the
precautions below to prevent carbon monoxide poisoning:
²Do not inhale exhaust gases. They contain carbon monox-
ide, a colorless and odorless gas which can kill. Never run
the engine in a closed area, such as a garage, and never sit
in a parked vehicle with the engine running for an ex-
tended period. If the vehicle is stopped in an open area
with the engine running for more than a short period,
adjust the ventilation system to force fresh, outside air into
the vehicle.
²Guard against carbon monoxide with proper maintenance.
Have the exhaust system inspected every time the vehicle is
raised. Have any abnormal conditions repaired promptly.
Until repaired, drive with all side windows fully open.
²Keep the liftgate closed when driving your vehicle to
prevent carbon monoxide and other poisonous exhaust
gases from entering the vehicle.
ADDING FUEL
Fuel Filler Cap (Gas Cap)
The gas cap is behind the fuel filler door. If the gas cap is
lost or damaged, be sure the replacement cap is for use
with this vehicle.
NOTE:To avoid contact between fuel cap and paint,
hang tether strap over hook provided on inner fuel door.
CAUTION!
Damage to the fuel system or emission control sys-
tem could result from using an improper fuel tank
filler tube cap (gas cap). A poorly fitting cap could let
impurities into the fuel system.
336 STARTING AND OPERATING

Towing Tips Ð Cooling System
To reduce potential for engine and transmission over-
heating, take the following actions:
þCity Driving
When stopped for short periods of time, put transmission
in neutral and increase engine idle speed.
þHighway Driving
Reduce speed.
þAir Conditioning
Turn off temporarily.
þrefer to Cooling System Operating information in the
Maintenance section of this manual for more informa-
tion.
SNOWPLOW
NOTE:Do not use this vehicle for snowplow applica-
tions.
WARNING!
Snowplows, winches, and other aftermarket equip-
ment should not be added to the front end or your
vehicle. The airbag crash sensors may be affected by
the change in the front end structure. The airbags
could deploy unexpectedly or could fail to deploy
during a collision resulting in serious injury or
death.
STARTING AND OPERATING 359
5

MAINTAINING YOUR VEHICLE
CONTENTS
mEngine Compartment 3.7L V6..............384
mEngine Compartment 4.7L V-8..............385
mEngine Compartment 5.7L HEMI V-8.........386
mOnboard Diagnostic System Ð OBD II........387
NLoose Fuel Filler Cap Message............388
mEmissions Inspection And Maintenance
Programs............................388
mReplacement Parts......................390
mDealer Service.........................390mMaintenance Procedures..................391
NEngine Oil..........................391
NEngine Oil Filter......................394
NDrive Belts Ð Check Condition And Tension . . 394
NSpark Plugs.........................395
NEngine Air Cleaner Filter................395
NEngine Fuel Filter.....................396
NCatalytic Converter....................396
NMaintenance Free Battery................397
7

NPower Steering Ð Fluid Check............399
NAir Conditioner Maintenance.............399
NFront Suspension Ball Joints..............400
NDrive Shaft Constant Velocity Joints........401
NBody Lubrication.....................401
NWindshield Wiper Blades................401
NWindshield And Rear Window Washers.....402
NExhaust System......................402
NCooling System.......................403
NEmission Related Components............409
NBrake System........................410
NAutomatic Transmission................411
NTransfer Case........................414NAxles..............................414
NAppearance Care And Protection From
Corrosion...........................415
mFuse Block............................420
NFuses (Interior).......................421
NFuses (Power Distribution Center).........424
NFuses (Integrated Power Module)..........427
mVehicle Storage........................429
mReplacement Light Bulbs.................430
mBulb Replacement......................430
NHeadlights/Parking/Turn Signal..........430
NRear Side Marker, Tail Lights, Turn Signals
And Backup Lights Ð Replacement........432
NLicense Lights........................436
382 MAINTAINING YOUR VEHICLE

CAUTION!
Overfilling or underfilling the crankcase will cause
oil aeration or loss of oil pressure. This could damage
your engine.
Change Engine Oil
Follow the Maintenance Schedule for recommended en-
gine oil and filter change intervals.
NOTE:Under no circumstances should oil change in-
tervals exceed 6,000 miles (10 000 km) or 6 months
whichever comes first.
4x4 Models, If Used Primarily For Off-Road Operation
Every 50 hours of use.
Dusty Conditions
Driving through dust-laden air increases the problems of
keeping abrasive materials out of the engine. Under these
conditions, special attention should be given to the
engine air cleaner and the crankcase inlet air cleaner. The
crankcase ventilation system should also be checked
periodically. Make sure that these units are always clean.
This will tend to reduce to a minimum the amount of
abrasive material that may enter the engine.
392 MAINTAINING YOUR VEHICLE