engine overheat DODGE CHALLENGER SRT 2018 User Guide

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.
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.
8
SERVICING AND MAINTENANCE 335

NOTE:Be sure you do not mix the engine coolant system
pressure cap with the intercooler system pressure cap.
These caps are not interchangeable.
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.
Disposal Of Used Coolant
Used ethylene glycol-based coolant (antifreeze) is a regu-
lated substance requiring proper disposal. Check with your
local authorities to determine the disposal rules for your
community. To prevent ingestion by animals or children,
do not store ethylene glycol-based coolant in open contain-
ers or allow it to remain in puddles on the ground. If
ingested by a child or pet, seek emergency assistance
immediately. Clean up any ground spills immediately.
Coolant Level
The coolant bottle provides a quick visual method for
determining that the engine coolant (antifreeze) level is
adequate. With the engine OFF and cold, the level of the
engine coolant (antifreeze) in the bottle should be between
the ranges indicated on the bottle.
The radiator normally remains completely full, so there is
no need to remove the radiator cap unless checking for
engine coolant (antifreeze) freeze point or replacing engine
coolant (antifreeze). Advise your service attendant of this.
As long as the engine operating temperature is satisfactory,
the coolant bottle need only be checked once a month.
When additional engine coolant (antifreeze) is needed to
maintain the proper level, it should be added to the coolant
bottle. Do not overfill.
Points To Remember
NOTE: When the vehicle is stopped after a few miles/
kilometers of operation, you may observe vapor coming
from the front of the engine compartment. This is normally
a result of moisture from rain, snow, or high humidity
accumulating on the radiator and being vaporized when
the thermostat opens, allowing hot engine coolant (anti-
freeze) to enter the radiator.
8
SERVICING AND MAINTENANCE 339

CAUTION!(Continued)
•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.
NOTE: Intentional tampering with the emissions control
system 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 mon-
oxide poisoning:
• Do not inhale exhaust gases. They contain carbon
monoxide, 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 extended 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.
• Guard against carbon monoxide with proper main-
tenance. Have the exhaust system inspected every
time the vehicle is raised. Have any abnormal condi-
tions repaired promptly. Until repaired, drive with
all side windows fully open.
380 TECHNICAL SPECIFICATIONS

Compartment Identification.................320
Coolant (Antifreeze) ...................336, 382
Cooling .............................. .336
Exhaust Gas Caution ...................200, 380
Fails To Start ............................211
Flooded, Starting .........................211
Fuel Requirements ....................... .376
Jump Starting ....................... .303, 304
Oil ........................... .324, 381, 382
Oil Filler Cap ....................... .320, 325
Oil Filter .............................. .326
Oil Selection ........................... .381
Oil Synthetic ........................... .325
Overheating ........................... .306
Starting ........................... .208, 209
Engine Oil Viscosity ........................ .325
Enhanced Accident Response Feature .........177, 312
Ethanol ................................. .378
Exhaust Gas Cautions ....................200, 380
Exhaust System ....................... .200, 334
Exterior Lighting ............................57
Exterior Lights ......................... .57, 203
Filler Location Fuel ........................ .267Filters
Air Cleaner ............................ .326
Air Conditioning ..................... .74, 328
Engine Oil ......................... .326, 382
Engine Oil Disposal ...................... .326
Flashers ................................ .274
Hazard Warning ........................ .274
Turn Signals ..................... .61, 121, 203
Flash-To-Pass ..............................59
Flooded Engine Starting ......................211
Fluid, Brake .......................... .382, 384
Fluid Capacities ........................... .381
Fluid Leaks .............................. .203
Fluid Level Checks Brake ................................ .340
Cooling
System......................... .336
Engine Oil ............................ .322
Power Steering ......................... .236
Fluids And Lubricants ...................... .382
Fog Lights ................................61
Fold-Flat Seats .......................... .40, 46
Forward Collision Warning ....................145
Freeing A Stuck Vehicle ..................... .309
Fuel ................................... .376
Additives ............................. .377
472 INDEX

Manual Transmission.................215, 342, 344
Fluid Level Check .....................342, 344
Map/Reading Lights .........................62
Memory Feature (Memory Seats) ................40
Memory Seat ..............................40
Memory Seats And Radio .....................40
Methanol ............................... .378
Mirrors ..................................54
Electric Powered ..........................56
Electric Remote ...........................56
Heated .................................56
Outside ................................55
Rearview ........................... .54, 274
Vanity .................................56
Modifications/Alterations, Vehicle ................6
Monitor, Tire Pressure System ..................148
Mopar Parts ............................. .465
Multi-Function Control Lever ...................58
Occupant Restraints ........................ .154
Octane Rating, Gasoline (Fuel) ..............376, 382
Oil Change Indicator ....................... .103
Reset ................................ .103
Oil, Engine ........................... .324, 382
Capacity .............................. .381Change Interval
........................ .324
Checking ............................. .322
Dipstick .............................. .322
Disposal .............................. .326
Filter ............................. .326, 382
Filter Disposal .......................... .326
Materials Added To ...................... .325
Pressure Warning Light ....................114
Recommendation ........................ .381
Synthetic ............................. .325
Viscosity .......................... .325, 381
Oil Filter, Change ......................... .326
Oil Filter, Selection ......................... .326
Oil Pressure Light ..........................114
Onboard Diagnostic System ...................122
Operating

Precautions ...................... .122
Operator Manual (Owner’s Manual) ...............5
Outside Rearview Mirrors .....................55
Overheating, Engine ....................... .306
Owner’s Manual (Operator Manual) ...........5,466
Paddle Shifters ........................... .227
Paddle Shift Mode ......................... .227
Paint Care ............................... .368
Panic Alarm ...............................20
476 INDEX