catalytic converter DODGE INTREPID 2004 2.G Owners Manual

If the pointer rises to the “H” mark, stop the vehicle and
turn off the engine until the problem is corrected.
CAUTION!
Continuing to drive with an overheated engine cool-
ing system can cause damage to the engine or other
components.
There are steps that you can take to slow down an
impending overheat condition. If your air conditioning is
on, turn it off. The air conditioning system adds heat to
the engine cooling system and turning off the A/C
removes this heat. You can also turn the Temperature
control to maximum heat, the Mode control to Floor and
the Fan control to High. This allows the heater core to act
as a supplement to the radiator and aids in removing heat
from the engine cooling system.
16. Malfunction Indicator Light
This light is part of an onboard diagnostic
system called OBD that monitors engine and
automatic transmission control systems. Thelight will illuminate 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 or
poor fuel quality 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 as soon as possible if this occurs.
17. Trip Odometer Reset Knob
To reset the trip odometer, push the reset knob for about
two seconds.
18. Airbag Light
The light will come on and remain on for 6 to 8
seconds as a bulb check when the ignition switch
is first turned ON. If the bulb is not lit during starting,
90 UNDERSTANDING YOUR INSTRUMENT PANEL

CAUTION!
DO NOT use gasolines containing Methanol. Use of
these blends may result in starting and driveability
problems and may damage critical fuel system com-
ponents.
Problems that result from using methanol/gasoline
blends are not the responsibility of the manufacturer and
may not be covered by the vehicle warranty. While MTBE
is an oxygenate made from Methanol, it does not have
the negative effects of Methanol.
MMT in Gasoline
MMT is a manganese containing metallic additive that is
blended into some gasoline to increase the octane num-
ber. Gasolines blended with MMT offer no performance
advantage beyond gasolines of the same octane number
without MMT. Gasolines blended with MMT have shown
to reduce spark plug life and reduce emission system
performance in some vehicles. The manufacturer recom-
mends using gasolines without MMT. Since the MMT
content of gasoline may not be indicated on the pump,you should ask your gasoline retailer whether or not
his/her gasoline contains MMT.
It is even more important to look for gasolines without
MMT in Canada because MMT can be used at higher
levels than allowed in the United States.
MMT is prohibited in both Federal and California refor-
mulated gasolines.
Sulfur in Gasoline
If you live in the Northeast United States, your vehicle
may have been designed to meet California low emission
standards with cleaner burning California reformulated
gasoline with low sulfur. If such fuels are not available in
states adopting California emission standards, your ve-
hicle will operate satisfactorily on fuels meeting Federal
specifications, but emission control system performance
may be adversely affected.
Gasoline sold outside of California is permitted to have
higher sulfur levels which may affect the performance of
the vehicle’s catalytic converter. This may cause the
Malfunction Indicator Light to illuminate. The manufac-
turer recommends that you try a different brand of
STARTING AND OPERATING 145
5

ONBOARD DIAGNOSTIC SYSTEM (OBD II)
To meet new government regulations and promote
cleaner air, your vehicle is equipped with a sophisticated
onboard diagnostic system called OBD II. This system
monitors the performance of the emissions, engine, and
automatic transaxle control systems. When these systems
are operating properly, your vehicle will provide excel-
lent performance and fuel economy, as well as engine
emissions well within current government regulations.
If any of these systems require service, the OBD II system
will turn on the Malfunction Indicator or Service Engine
Soon Light. It will also store diagnostic codes and other
information to assist your service technician in making
repairs. Although your vehicle will usually be driveable
and not need towing, see your dealer for service as soon
as possible.CAUTION!
Prolonged driving with the light 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 state emissions
tests can be performed.
If the light is flashing, severe catalytic converter damage
and power loss will soon occur. Immediate service is
required.
If the gas cap is not tightened properly, the light may
come on. Be sure the gas cap is tightened every time you
add fuel. Tighten the cap until you hear it “click.”
MAINTAINING YOUR VEHICLE 169
7

on how and where used oil can be safely discarded in
your area.
Engine Oil Filter
The engine oil filter should be replaced at every engine
oil change.
Engine Oil Filter Selection
All of this manufacturer’s engines have a full-flow type
disposable oil filter. Use a filter of this type for replace-
ment. The quality of replacement filters varies consider-
ably. Only high quality filters should be used to assure
most efficient service. Mopar Engine Oil Filters are high
quality oil filters and are recommended.
Drive Belts – Check Condition and Tension
At the mileage shown in the maintenance schedules,
check all drive belts for condition and proper tension.
Improper belt tension can cause belt slippage and failure.
Inspect the drive belts for evidence of cuts, cracks, or
glazing and replace them if there is any sign of damage
which could result in belt failure. If adjustment is re-
quired, adjust the belts according to the specificationsand procedures shown in the Service Manual. See the
Consumer Assistance section for information on ordering
a Service Manual.
Special tools are required to properly measure tension
and to restore belt tension to factory specifications. Also,
check belt routing to make sure there is no interference
between the belts and other engine components.
Spark Plugs
Spark plugs must fire properly to assure engine perfor-
mance and emission control. New plugs should be in-
stalled at the mileage specified in the appropriate main-
tenance chart. The entire set should be replaced if there is
any malfunction due to a faulty spark plug. Check the
specifications section for the proper type of spark plug
for use in your vehicle.
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.
178 MAINTAINING YOUR VEHICLE

Under normal operating conditions, the catalytic con-
verter will not require maintenance. However, it is im-
portant to seek service to assure proper catalyst operation
and prevent possible catalyst damage. If the Malfunction
Indicator light is flashing, immediate service is required.
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.
WARNING!
A hot exhaust system can start a fire if you park over
materials that can burn. Such materials might be
grass or leaves coming into contact with your ex-
haust system. Do not park or operate your vehicle in
areas where your exhaust system can contact any-
thing that can burn.
In unusual situations involving grossly malfunctioning
engine operation, a scorching odor may suggest severe
and abnormal catalyst overheating. If this occurs, stop
the vehicle, turn off the engine and allow it to cool.
Service, including a tune up to manufacturers specifica-
tions, should be obtained immediately.
To minimize the possibility of catalyst damage:
•Do not shut off the engine or interrupt the ignition
when the transaxle is in gear and the vehicle is in
motion.
•Do not try to start the engine by pushing or towing the
vehicle.
MAINTAINING YOUR VEHICLE 179
7

Location.........................159,181
Saving Feature....................60,61,63
Belts, Engine.......................... 180
Body Mechanism Lubrication.............. 184
Brake, Parking......................... 132
Brake System.......................134,192
Anti-Lock........................... 134
Fluid Check......................... 193
Hoses.............................. 192
Master Cylinder...................... 193
Warning Light.....................92,132
Brake/Transmission Interlock...........129,130
Break-In Recommendations, New Vehicle...... 47
Bulb Replacement...................... 204
Bulbs, Light........................... 204
Capacities, Fluid....................... 208
Capacity, Cargo Weight.................. 148
Car Washes........................198,199
Cargo Compartment
Capacity............................ 148
Luggage Carrier...................... 148
Carpeting............................. 199Cassette Tape and Player Maintenance....... 112
Cassette Tape Player................93,100,112
Catalytic Converter..................... 178
CD Changer.....................103,108,109
CD Player.......................98,105,107
Central Door Locks...................... 15
Chains, Tire........................... 140
Changing A Flat Tire.................... 153
Charging System Light................... 91
Checks, Safety.......................... 47
Child Restraint...................40,42,44,45
Child Restraint Tether Anchors...........43,44
Child Safety Locks....................... 16
Circuit Breakers........................ 202
Clean Air Gasoline...................... 144
Cleaning
Carpets............................. 199
Cloth.............................. 199
Glass.............................. 200
Headlights.......................... 200
Instrument Panel..................... 200
Seat Belts........................... 201
Vinyl.............................. 199
INDEX 239
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