engine overheat DODGE CHALLENGER SRT 2019 User Guide

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
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.
(Continued)
CAUTION! (Continued)
•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.
350 SERVICING AND MAINTENANCE

•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.
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.
354 SERVICING AND MAINTENANCE

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.
(Continued)
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.
9
TECHNICAL SPECIFICATIONS 395

Compartment Identification.................337
Coolant (Antifreeze) ...................351, 398
Cooling ...............................351
Exhaust Gas Caution ...................205, 396
Fails To Start ............................218
Flooded, Starting ........................ .218
Fuel Requirements ........................392
Jump Starting ....................319, 320, 321
Oil ............................340, 397, 398
Oil Filler Cap ........................337, 341
Oil Filter ...............................342
Oil Selection ............................397
Oil Synthetic ............................341
Overheating ............................322
Starting ............................214, 215
Engine Oil Viscosity ........................ .341
Enhanced Accident Response Feature .........182, 329
Ethanol ................................. .393
Exhaust Gas Cautions ....................205, 396
Exhaust System ........................205, 349
Exterior Lighting ............................61
Exterior Lights ..........................61, 208
Filler Location Fuel ........................ .274Filters
Air Cleaner ............................ .342
Air Conditioning ..................... .77, 344
Engine Oil ..........................342, 398
Engine Oil Disposal .......................342
Flashers .................................283
Hazard Warning ........................ .283
Turn Signals ..................... .64, 126, 208
Flash-To-Pass ..............................62
Flooded Engine Starting ..................... .218
Fluid, Brake .......................... .398, 400
Fluid Capacities ............................397
Fluid Leaks ...............................209
Fluid Level

Checks
Brake .................................356
Cooling System ..........................351
Engine Oil ............................ .338
Fluids And Lubricants .......................398
Fog Lights ................................64
Fold-Flat Seats .......................... .44, 45
Forward Collision Warning ....................151
Freeing A Stuck Vehicle ..................... .325
Fuel ................................... .392
Additives ............................. .393
486 INDEX

Service............................... .479
Tilt ...................................45
Manual Transmission .................223, 357, 359
Fluid Level Check .....................357, 359
Map/Reading Lights .........................65
Methanol ............................... .393
Mirrors ..................................57
Electric Powered ..........................59
Electric Remote ...........................59
Heated .................................59
Outside ................................58
Rearview ............................57, 283
Vanity .................................60
Modifications/Alterations Vehicle .................................5
Monitor, Tire Pressure System ..................153
Mopar Parts ............................. .479
Multi-Function Control Lever ...................61
Occupant Restraints ........................ .159
Octane Rating, Gasoline (Fuel) ..............392, 398
Oil Change Indicator ........................107
Reset .................................107
Oil, Engine ............................340, 398
Capacity ...............................397 Change Interval
........................ .340
Checking ............................. .338
Dipstick ...............................338
Disposal ...............................342
Filter ............................. .342, 398
Filter Disposal .......................... .342
Materials Added To .......................341
Pressure Warning Light ....................120
Recommendation ........................ .397
Synthetic ............................. .341
Viscosity .......................... .341, 397
Oil Filter, Change ..........................342
Oil Filter, Selection ..........................342
Oil Pressure Light ..........................120
Onboard Diagnostic System ...................128
Operating Pr

ecautions.......................128
Operator Manual Owner’s Manual .......................5,479
Outside Rearview Mirrors .....................58
Overheating, Engine ........................322
Owner ’s Manual (Operator Manual) ...............5
Paddle Shifters ............................235
Paddle Shift Mode ..........................235
Paint Care ............................... .385
490 INDEX