2008 DODGE CARAVAN catalytic converter

15. Malfunction Indicator Light
This light is part of an onboard diagnostic system
called OBD that monitors engine and automatic
transmission control systems. The light will illu-
minate when the key is in the ON position before engine
start. If the bulb does not come on when turning the key
from OFF to ON, have the condition checked promptly.
Certain conditions such as a loose or missing gas cap,
poor fuel quality, etc. may illuminate the light after
engine start. The vehicle should be serviced if the light
stays on through several of your typical driving cycles. In
most situations the vehicle will drive normally and will
not require towing.
The Malfunction Indicator Light flashes to alert to serious
conditions that could lead to immediate loss of power or
severe catalytic converter damage. The vehicle should be
serviced at an authorized dealer as soon as possible if this
occurs.16. Engine Temperature Warning Light
This light warns of an overheated engine condi-
tion. If the engine is critically hot, a continuous
chime will sound for four minutes. After the chime
turns off, the engine will still be critically hot until the
light turns off.
17. Electronic Throttle Control (ETC.) Light
This light informs you of a problem with the
Electronic Throttle Control system. If a prob-
lem is detected, the light will come on while the
engine is running. Cycle the ignition key when
the vehicle has completely stopped and the gear selector
is placed in the PARK position. The light should turn off.
If the light remains lit with the engine running your
vehicle will usually be drivable, however, see your dealer
for service as soon as possible. If the light is flashing
when the engine is running, immediate service is re-
quired and you may experience reduced performance, an
elevated/rough idle or engine stall and your vehicle may
232 UNDERSTANDING YOUR INSTRUMENT PANEL

If The Engine Fails To Start
WARNING!
²NEVER pour fuel or other flammable liquids into
the throttle body air inlet opening in an attempt to
start the vehicle. This could result in a flash fire
causing serious personal injury.
²DO NOT attempt to push or tow your vehicle to
get it started. Vehicles equipped with an automatic
transmission cannot be started this way. Unburned
fuel could enter the catalytic converter and once
the engine has started, ignite and damage the
converter and vehicle.
²If the vehicle has a discharged battery, booster
cables may be used to obtain a start from a booster
battery or the battery in another vehicle. This type
of start can be dangerous if done improperly. Refer
to Section 6 of this manual for proper jump-
starting procedures and follow them carefully.If the engine fails to start after you have followed the
ªNormal Startingº procedure, it may be flooded. Push
the accelerator pedal all the way to the floor and hold it
there while cranking the engine. This should clear any
excess fuel in case the engine is flooded.
CAUTION!
To prevent damage to the starter, DO NOT crank the
engine for more than 15±second intervals at one time.
Wait 10 to 15 seconds before trying again.
If the engine has been flooded, it may start to run, but not
have enough power to continue running when the key is
released. If this occurs, continue cranking with the accel-
erator pedal pushed all the way to the floor. Release the
accelerator pedal and the key once the engine is running
smoothly.
326 STARTING AND OPERATING

It is even more important to look for gasolines without
MMT in Canada, because MMT can be used at levels
higher than those allowed in the United States.
MMT is prohibited in Federal and California reformu-
lated gasolines.
Materials Added to Fuel
All gasoline sold in the United States is required to
contain effective detergent additives. Use of additional
detergents or other additives are not needed under
normal conditions and would result in additional cost.
Therefore 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
and damage the emission control system.
²An out-of-tune engine, or certain fuel or ignition
malfunctions, 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 authorized dealer for service assistance.
380 STARTING AND OPERATING

CAUTION!
For vehicles equipped with Stow 'n Go seating, the
Winch Mechanism is designed specifically to stow a
COMPACT Spare Tire ONLY. Do not attempt to use
the Winch to stow the Full Size 'Flat' Tire, or any
other Full Size Tire. Vehicle damage may result.
JUMP-STARTING PROCEDURE
WARNING!
²DO NOT attempt to push or tow the vehicle to get it started. Vehicles
equipped with an automatic transmission cannot be started this way.
Unburned fuel could enter the catalytic converter and once the engine has
started, ignite and damage the converter and vehicle.
²If the vehicle has a discharged battery, booster cables may be used to obtain
a start from another vehicle. This type of start can be dangerous if done
improperly, so follow this procedure carefully.
²Battery fluid is a corrosive acid solution; DO NOT allow battery fluid to
contact eyes, skin or clothing. Don't lean over battery when attaching
clamps or allow the clamps to touch each other. If acid splashes in the eyes
or on the skin, flush the contaminated area immediately with large
quantities of water.
²A battery generates hydrogen gas which is flammable and explosive. Keep
all flames or sparks away from the vent holes. DO NOT use a booster
battery or any other booster source with an output that exceeds 12 volts.
²During cold weather when temperatures are below freezing point, electro-
lyte in a discharged battery may freeze. DO NOT attempt jump-starting
because the battery could rupture or explode. The battery temperature must
be brought up above freezing point before attempting jump-start.
²Take special care to avoid the radiator cooling fan whenever the hood is
raised. The cooling fan is electrically operated and can start anytime the
ignition switch is ON. You can be hurt by the fan.
WHAT TO DO IN EMERGENCIES 425
6

MAINTAINING YOUR VEHICLE
CONTENTS
m3.3L Engine Compartment................434
m3.8L Engine Compartment................435
m4.0L Engine Compartment................436
mOnboard Diagnostic System Ð OBD II........437
NLoose Fuel Filler Cap Message Ð gASCAP . . . 438
mEmissions Inspection And Maintenance
Programs............................438
mReplacement Parts......................440
mAuthorized Dealer Service................440mMaintenance Procedures..................441
NEngine Oil..........................441
NEngine Oil Filter......................444
NDrive Belt...........................445
NSpark Plugs.........................445
NEngine Air Cleaner....................445
NCatalytic Converter....................446
NMaintenance-Free Battery................448
NAir Conditioner Maintenance.............450
7

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 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.
446 MAINTAINING YOUR VEHICLE

Brakes.............................337,462
Brake/Transmission Interlock............... 328
Break-In Recommendations, New Vehicle........ 93
Bulb Replacement....................... 482
Bulbs, Light............................ 481
Calibration, Compass..................240,246
Capacities, Fluid........................ 486
Caps, Filler
Fuel................................ 382
Oil (Engine).......................434,443
Radiator (Coolant Pressure)............... 458
Car Washes............................ 468
Carbon Monoxide Warning................. 381
Cargo Compartment
Luggage Carrier....................... 215
Cargo (Vehicle Loading)................... 214
Catalytic Converter...................... 446
Caution, Exhaust Gas.................51,95,381CD (Compact Disc) Player...............280,283
CD (Compact Disc) Player Maintenance........ 300
Cellular Phone.................104,283,284,299
Center High Mounted Stop Light............ 485
Chains, Tire............................ 367
Changing A Flat Tire..................... 412
Chart, Tire Sizing........................ 350
Check Engine Light
(Malfunction Indicator Light).............232,438
Child Restraint........................81,83
Child Restraint Tether Anchors............... 86
Child Safety Locks........................ 46
Child Seat.............................. 88
Clean Air Gasoline....................... 378
Cleaning
Wheels............................. 470
Climate Control......................... 301
Clock........................254,269,281,285
Coat Hook............................ 214
510 INDEX