engine overheat DODGE CHARGER 2018 User Guide

Exhaust System
The best protection against carbon monoxide entry into the
vehicle body is a properly maintained engine exhaust
system.
If you notice a change in the sound of the exhaust system;
or if the exhaust fumes can be detected inside the vehicle;
or when the underside or rear of the vehicle is damaged;
have an authorized technician inspect the complete ex-
haust system and adjacent body areas for broken, dam-
aged, deteriorated, or mispositioned parts. Open seams or
loose connections could permit exhaust fumes to seep into
the passenger compartment. In addition, have the exhaust
system inspected each time the vehicle is raised for lubri-
cation or oil change. Replace as required.
WARNING!
•Exhaust gases can injure or kill. They contain carbon
monoxide (CO), which is colorless and odorless.
Breathing it can make you unconscious and can
eventually poison you. To avoid breathing CO, refer
to “Safety Tips” in “Safety” for further information.
• A hot exhaust system can start a fire if you park over
materials that can burn. Such materials might be
(Continued)
WARNING! (Continued)
grass or leaves coming into contact with your exhaust
system. Do not park or operate your vehicle in areas
where your exhaust system can contact anything that
can burn.
CAUTION!
•The catalytic converter requires the use of unleaded
fuel only. Leaded gasoline will destroy the effective-
ness of the catalyst as an emissions control device
and may seriously reduce engine performance and
cause serious damage to the engine.
• 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
vehicle.
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SERVICING AND MAINTENANCE 379

Under normal operating conditions, the catalytic converter
will not require maintenance. However, it is important to
keep the engine properly tuned to assure proper catalyst
operation and prevent possible catalyst damage.
NOTE:Intentional tampering with emissions control sys-
tems can result in civil penalties being assessed against
you.
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 manufacturer’s specifications,
should be obtained immediately.
To minimize the possibility of catalytic converter damage:
• Do not shut off the engine or interrupt the ignition when
the transmission is in gear and the vehicle is in motion.
• Do not try to start the engine by pushing or towing the
vehicle.
• Do not idle the engine with any spark plug wires
disconnected or removed, such as when diagnostic
testing, or for prolonged periods during very rough idle
or malfunctioning operating conditions. NOTE:
Your vehicle’s exhaust system may be equipped
with an Electronic Exhaust Valve (EEV) system, if the
exhaust system is replaced with aftermarket products a
Malfunction Indicator Lamp (MIL) will illuminate.
Cooling System
WARNING!
• You or others can be badly burned by hot engine
coolant (antifreeze) or steam from your radiator. If
you see or hear steam coming from under the hood,
do not open the hood until the radiator has had time
to cool. Never open a cooling system pressure cap
when the radiator or coolant bottle is hot.
• Keep hands, tools, clothing, and jewelry away from
the radiator cooling fan when the hood is raised. The
fan starts automatically and may start at any time,
whether the engine is running or not.
• When working near the radiator cooling fan, discon-
nect the fan motor lead or turn the ignition to the
OFF mode. The fan is temperature controlled and can
start at any time the ignition is in the ON mode.
380 SERVICING AND MAINTENANCE

•Mix a minimum solution of 50% OAT engine coolant
that meets the requirements of FCA Material Standard
MS.90032 and distilled water. Use higher concentrations
(not to exceed 70%) if temperatures below 34°F (37°C)
are anticipated. Please contact an authorized dealer for
assistance.
• Use only high purity water such as distilled or deionized
water when mixing the water/engine coolant (anti-
freeze) solution. The use of lower quality water will
reduce the amount of corrosion protection in the engine
cooling system.
NOTE:
• It is the owner’s responsibility to maintain the proper
level of protection against freezing according to the
temperatures occurring in the area where the vehicle is
operated.
• Some vehicles require special tools to add coolant prop-
erly. Failure to fill these systems properly could lead to
severe internal engine damage. If any coolant is needed
to be added to the system, please contact a local autho-
rized dealer.
• Mixing engine coolant (antifreeze) types is not recom-
mended and can result in cooling system damage. If HOAT and OAT coolant are mixed in an emergency,
have a authorized dealer drain, flush, and refill with
OAT coolant (conforming to MS.90032) as soon as pos-
sible.
Cooling System Pressure Cap
The cap must be fully tightened to prevent loss of engine
coolant (antifreeze), and to ensure that engine coolant
(antifreeze) will return to the radiator from the coolant
expansion bottle/recovery tank if so equipped.
The cap should be inspected and cleaned if there is any
accumulation of foreign material on the sealing surfaces.
WARNING!
•
Do not open hot engine cooling system. Never add
engine coolant (antifreeze) when the engine is over-
heated. Do not loosen or remove the cap to cool an
overheated engine. Heat causes pressure to build up
in the cooling system. To prevent scalding or injury,
do not remove the pressure cap while the system is
hot or under pressure.
• Do not use a pressure cap other than the one speci-
fied for your vehicle. Personal injury or engine
damage may result.
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SERVICING AND MAINTENANCE 383

CNG And LP Fuel System Modifications
Modifications that allow the engine to run on compressed
natural gas (CNG) or liquid propane (LP) may result in
damage to the engine, emissions, and fuel system compo-
nents. Problems that result from running CNG or LP are
not the responsibility of the manufacturer and may void or
not be covered under the New Vehicle Limited Warranty.
MMT In Gasoline
Methylcyclopentadienyl Manganese Tricarbonyl (MMT) is
a manganese-containing metallic additive that is blended
into some gasoline to increase octane. Gasoline blended
with MMT provides no performance advantage beyond
gasoline of the same octane number without MMT. Gaso-
line blended with MMT reduces spark plug life and
reduces emissions system performance in some vehicles.
The manufacturer recommends that gasoline without
MMT be used in your vehicle. The MMT content of
gasoline may not be indicated on the gasoline pump;
therefore, you should ask your gasoline retailer whether
the gasoline contains MMT. MMT is prohibited in Federal
and California reformulated gasoline.
Fuel System Cautions
CAUTION!
Follow these guidelines to maintain your vehicle’s
performance:
•The use of leaded gasoline is prohibited by Federal
law. Using leaded gasoline can impair engine perfor-
mance and damage the emissions control system.
• An 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 an authorized dealer for service assistance.
• The use of fuel additives, which are now being sold
as octane enhancers, is not recommended. Most of
these products contain high concentrations of metha-
nol. Fuel system damage or vehicle performance
problems resulting from the use of such fuels or
additives is not the responsibility of the manufac-
turer and may void or not be covered under the New
Vehicle Limited Warranty.
9
TECHNICAL SPECIFICATIONS 427

Electronic Throttle Control Warning Light.........133
Emergency, In Case Of Freeing Vehicle When Stuck .................345
Hazard Warning Flasher ...................301
Jacking ............................323, 388
Jump Starting ........................338, 340
Towing ............................... .346
Emission Control System Maintenance ............143
Engine .......................... .362, 363, 364
Air Cleaner ............................ .371
Block Heater ............................225
Break-In Recommendations .................226
Checking Oil Level .......................365
Compartment ....................362, 363, 364
Compartment Identification .................362
Coolant (Antifreeze) ...................381, 432
Cooling ...............................380
Exhaust Gas Caution ...................214, 428
Fails To Start ............................225
Flooded, Starting ........................ .225
Fuel Requirements ....................424, 431
Jump Starting ........................338, 340
Oil ............................368, 431, 432
Oil Filler Cap .....................362, 369, 370
Oil Filter ...............................371 Oil Selection
........................ .368, 431
Oil Synthetic ............................370
Overheating ............................342
Starting ............................222, 223
Engine Oil Viscosity .....................369, 370
Engine Oil Viscosity Chart ....................369
Enhanced Accident Response Feature .........194, 349
Ethanol ............................. .426, 428
Exhaust Gas Cautions ....................214, 428
Exhaust System ........................214, 379
Exterior Lighting............................

64
Exterior Lights ..........................64, 217
Filters Air Cleaner ............................ .371
Air Conditioning ..................... .90, 373
Engine Oil ..........................371, 432
Engine Oil Disposal .......................370
Flashers .................................301
Hazard Warning ........................ .301
Turn Signals ..................... .69, 141, 217
Flash-To-Pass ..............................67
Flexible Fuel Vehicles Cruising Range ..........................430
Engine Oil ............................ .429
538 INDEX

Change Interval........................ .368
Checking ............................. .365
Dipstick ...............................365
Disposal ...............................370
Filter ............................. .371, 432
Filter Disposal .......................... .370
Identification Logo .......................369
Materials Added To .......................370
Pressure Warning Light ....................134
Recommendation .....................368, 431
Synthetic ............................. .370
Viscosity ........................369, 370, 431
Oil Filter, Change ..........................371
Oil Filter, Selection ..........................371
Oil Pressure Light ..........................134
Onboard Diagnostic System ...................142
Operating Precautions .......................142
Operator Manual (Owner’s Manual) ...............5
Outside Rearview Mirrors .....................62
Overheating, Engine ........................342
Owner’s Manual (Operator Manual) ...........5,532
Paddle Shifters ............................238
Paddle Shift Mode ..........................238
Paint Care ............................... .413Panic Alarm
...............................20
Parking Brake ............................ .227
ParkSense System, Rear ..................... .267
Passing Light ..............................67
Passive Entry ..............................37
Performance ............................. .486
Personalized Main Menu .....................437
Pets ................................... .213
Placard, Tire And Loading Information ...........395
Power Brakes ............................... .422
Deck Lid Release .........................98
Distribution Center (Fuses) ..................317
Door Locks ..............................

36
Mirrors ................................62
Outlet (Auxiliary Electrical Outlet) ............112
Seats ..................................45
Steering ...............................242
Sunroof ................................94
Tilt/Telescoping Steering Column ..............58
Windows ...............................91
Power Seats Forward ................................45
Lumbar ................................46
Rearward ...............................45
12
INDEX 543