2018 Ram 3500 Chassis Cab overheating

WARNING!
Fast spinning tires can be dangerous. Forces generated
by excessive wheel speeds may cause damage, or even
failure, of the axle and tires. A tire could explode and
injure someone. Do not spin your vehicle’s wheels
faster than 30 mph (48 km/h) or for longer than 30
seconds continuously without stopping when you are
stuck and do not let anyone near a spinning wheel, no
matter what the speed.
CAUTION!
•Racing the engine or spinning the wheels may lead
to transmission overheating and failure. Allow the
engine to idle with the transmission in NEUTRAL
for at least one minute after every five rocking-
motion cycles. This will minimize overheating and
reduce the risk of clutch or transmission failure
during prolonged efforts to free a stuck vehicle.
• When “rocking” a stuck vehicle by shifting between
DRIVE/SECOND GEAR and REVERSE, do not spin
the wheels faster than 15 mph (24 km/h), or drive-
train damage may result.
• Revving the engine or spinning the wheels too fast
may lead to transmission overheating and failure. It
can also damage the tires. Do not spin the wheels
above 30 mph (48 km/h) while in gear (no transmis-
sion shifting occurring).
7
IN CASE OF EMERGENCY 349

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 interrupt the ignition when the transmission is in
gear and the vehicle is in motion.
• Do not try to start the vehicle by pushing or towing the
vehicle.
• Do not idle the engine with any ignition components
disconnected or removed, such as when diagnostic
testing, or for prolonged periods during very rough idle
or malfunctioning operating conditions.
8
SERVICING AND MAINTENANCE 381

•Economy
• Tread Wear
• Ride Comfort
Safety
WARNING!
• Improperly inflated tires are dangerous and can
cause collisions.
• Underinflation increases tire flexing and can result
in overheating and tire failure.
• Overinflation reduces a tire’s ability to cushion
shock. Objects on the road and chuckholes can cause
damage that result in tire failure.
• Overinflated or underinflated tires can affect vehicle
handling and can fail suddenly, resulting in loss of
vehicle control.
• Unequal tire pressures can cause steering problems.
You could lose control of your vehicle.
• Unequal tire pressures from one side of the vehicle
to the other can cause the vehicle to drift to the right
or left.
• Always drive with each tire inflated to the recom-
mended cold tire inflation pressure. Both under-inflation and over-inflation affect the stability
of the vehicle and can produce a feeling of sluggish
response or over responsiveness in the steering.
NOTE:
•
Unequal tire pressures from side to side may cause
erratic and unpredictable steering response.
• Unequal tire pressure from side to side may cause the
vehicle to drift left or right.
Fuel Economy
Underinflated tires will increase tire rolling resistance
resulting in higher fuel consumption.
Tread Wear
Improper cold tire inflation pressures can cause abnormal
wear patterns and reduced tread life, resulting in the need
for earlier tire replacement.
Ride Comfort And Vehicle Stability
Proper tire inflation contributes to a comfortable ride.
Over-inflation produces a jarring and uncomfortable ride.
402 SERVICING AND MAINTENANCE

Door Ajar Light........................... .150
Door Locks, Automatic .......................39
Door Opener, Garage .........................99
Driver’s Seat Back Tilt ........................41
Driving Through Flowing, Rising, Or Shallow Standing
Water ................................ .314
Dual Rear Wheels ....................341, 415, 425
Electrical Power Outlets ......................119
Electronically Shifted Transfer Case ..............259
Electronic Brake Control System ................161
Anti-Lock Brake System ....................160
Electronic Roll Mitigation ...................169
Traction Control System ....................165
Electronic Range Select (ERS)..................252
Electronic Speed Control (Cruise Control) .........267
Electronic Stability Control (ESC) ...............165
Electronic Throttle Control Warning Light .........149
Emergency Brake .......................... .243
Emergency, In Case Of Freeing Vehicle When Stuck .................348
Hazard Warning Flasher ...................318
Jacking ............................... .337
Jump Starting .......................... .343Emission Control System Maintenance
............157
Engine ................................. .362
Air Cleaner ............................ .366
Break-In Recommendations .................242
Compartment Identification .................362
Coolant (Antifreeze) ..................... .433
Exhaust Gas Caution ...................231, 431
Fails To Start ........................... .241
Flooded, Starting ........................ .241
Fuel Requirements ....................... .428
Jump Starting .......................... .343
Oil .............................. .365, 433
Oil Filler Cap ....................... .362, 366
Oil Filter .............................. .366
Oil

Selection ........................... .365
Oil Synthetic ........................... .366
Overheating ........................... .346
Engine Oil Viscosity ........................ .366
Enhanced Accident Response Feature .........203, 353
Entry System, Illuminated .....................76
Ethanol ................................. .429
Exhaust Gas Caution .....................231, 431
Exhaust System ....................... .231, 380
Exterior Lighting ............................67
12
INDEX 513

Occupant Restraints........................ .179
Octane Rating, Gasoline (Fuel) .................428
Oil, Engine ........................... .365, 433
Capacity .............................. .432
Change Interval ........................ .365
Dipstick .............................. .363
Disposal .............................. .366
Filter ............................. .366, 433
Filter Disposal .......................... .366
Identification Logo ...................... .365
Materials Added To ...................... .366
Pressure Warning Light ....................149
Recommendation ........................ .365
Synthetic ............................. .366
Viscosity .............................. .366
Oil Filter, Change ......................... .366
Oil Filter, Selection ......................... .366
Oil Pressure Light ......................... .149
Onboard Diagnostic System ...................156
Operating Precautions ...................... .156
Operator Manual (Owner’s Manual) ...............5
Outside Rearview Mirrors .....................61
Overdrive ............................... .253
Overdrive OFF Switch ...................... .253
Overheating, Engine ....................... .346Owner’s Manual (Operator Manual)
...........5,508
Paint Care ............................... .417
Panic Alarm ...............................22
Parking Brake ............................ .243
ParkSense System, Rear ...................270, 278
Passive Entry ..............................36
Pedals, Adjustable ...........................57
Personalized Menu Bar ..................... .439
Personal Settings .......................... .140
Pets ................................... .230
Placard, Tire And Loading Information ...........398
Power Distribution

Center (Fuses) ..................330
Door Locks ..............................36
Mirrors ................................62
Outlet (Auxiliary Electrical Outlet) .........119,123
Seats ..................................44
Steering ........................... .266, 267
Take-Off Adapter ........................ .264
Take-Off Operation ...................... .264
Windows ...............................96
Power Seats Down .............................. .45, 46
Forward ............................ .44, 46
518 INDEX