2007 RAM CHASSIS CAB light

• The use of leaded gas is prohibited by Federal law.
Using leaded gasoline can impair engine performance,
damage the emission 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 your dealer for service assistance.
• When pulling a heavy load or driving a fully loaded
vehicle when the humidity is low and the temperature
is high, use a premium unleaded fuel to help prevent
spark knock. If spark knock persists, lighten the load,
or engine piston damage may result.
• The use of fuel additives which are now being sold as
octane enhancers is not recommended. Many of these
products contain high concentrations of methanol. Fuel system damage or vehicle performance problems
resulting from the use of such fuels or additives is not
the responsibility of the manufacturer.
NOTE: Intentional tampering with emissions control
systems 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
monoxide 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 the330 STARTING AND OPERATING

ADDING FUEL
Adding Fuel (Gas Engines)
CAUTION!Damage to the fuel system or emission control
system could result from using an improper fuel
tank filler tube cap (gas cap). A poorly fitting cap
could let impurities into the fuel system. Also a
poorly fitted after-market cap can cause the MIL
(Malfunction Indicator Light) to illuminate, due to
fuel vapors escaping from the system. CAUTION!A poorly fitting gas cap may cause the Malfunction
Indicator Light to turn on.
CAUTION!To avoid fuel spillage and overfilling, do not “top
off” the fuel tank after filling.
NOTE: When the fuel nozzle “clicks” or shuts off, the
fuel tank is full. STARTING AND OPERATING 333
5

WARNING!• Never have any smoking materials lit in or near
the vehicle when the gas cap is removed or the
tank filled.
• Never add fuel to the vehicle when the engine is
running. This is in violation of most state and
federal fire regulations and will cause the Mal-
function Indicator Light to turn on.
NOTE: Tighten the gas cap 1/4 turn until you hear one
click. This is an indication that the cap is properly
tightened.
If the gas cap is not tightened properly, the Malfunction
Indicator Light will come on, Be sure the gas cap is
tightened every time the vehicle is refueled. WARNING!A fire may result if gasoline is pumped into a
portable container that is inside of a vehicle. You
could be burned. Always place gas containers on the
ground while filling.
Loose Fuel Filler Cap Message
If the vehicles diagnostic system determines that the fuel
filler cap in loose, improperly installed, or damaged, a
GASCAP message will be displayed in the instrument
cluster. Tighten the gas cap until a “clicking” sound is
heard. This is an indication that the gas cap is properly
tightened. Press the odometer reset button to turn the
message off. If the problem persists, the message will
appear the next time the vehicle is started. This might
indicate a damaged cap. If the problem is detected twice334 STARTING AND OPERATING

in a row, the system will turn on the Malfunction
Indicator Light (MIL). Resolving the problem will turn
the MIL light off.
Adding Fuel (Diesel Engines)
CAUTION!To avoid fuel spillage and overfilling, do not “top
off” the fuel tank after filling.
NOTE:
• When the fuel nozzle “clicks” or shuts off, the fuel
tank is full.
• Tighten the gas cap until you hear a “clicking” sound.
This is an indication that the gas cap is properly
tightened. • Make sure that the gas cap is tightened each time the
vehicle is refueled.
WARNING!A fire may result if fuel is pumped into a portable
container that is on a truck bed. You could be
burned. Always place fuel containers on the ground
while filling.
Fuel Filler Cap (Gas Cap)
If the gas cap is lost or damaged, be sure the replacement
cap is for use with this vehicle. STARTING AND OPERATING 335
5

Weight Ratings)” for the website address that contains
the necessary information for your specific drivetrain.
Trailer Hitch Classification
Class Max. GTW (Gross Trailer
Wt.)
ClassI-Light Duty 2,000 lbs (907 kg)
Class II - Medium
Duty 3,500 lbs (1587 kg)
Class III - Heavy Duty 5,000 lbs (2268 kg)
Class IV - Extra
Heavy Duty 10,000 lbs (4540 kg)
Fifth Wheel/
Gooseneck Greater than 10,000 lbs (4540
kg)
All trailer hitches should be professionally installed on
your vehicle. Trailer Towing Weights (Maximum Trailer Weight
Ratings)
NOTE: For additional trailer towing information (maxi-
mum trailer weight ratings) refer to the following website
addresses:
• http:// www.dodge.com/towing .
• http:// www.dodge.ca (Canada).
Trailer and Tongue Weight
Always load a trailer with 60% to 65% of the weight in
the front of the trailer. This places 10% to 15% of the
Gross Trailer Weight (GTW) on the tow hitch of your
vehicle. Loads balanced over the wheels or heavier in the
rear can cause the trailer to sway severely side to side
which will cause loss of control of vehicle and trailer.
Failure to load trailers heavier in front is the cause of
many trailer accidents.346 STARTING AND OPERATING

WARNING!Do not connect trailer brakes to your vehicle’s hy-
draulic brake lines. It can overload your brake sys-
tem and cause it to fail. You might not have brakes
when you need them and could have an accident.
Towing any trailer will increase your stopping dis-
tance. When towing you should allow for additional
space between your vehicle and the vehicle in front
of you. Failure to do so could result in an accident. Towing Requirements — Trailer Lights & Wiring
Whenever you pull a trailer, regardless of the trailer size,
stop lights and turn signals on the trailer are required for
motoring safety.
The Trailer Tow Package may includ ea4and7pin
wiring harness. Use a factory approved trailer harness
and connector.
NOTE: Do not cut or splice wiring into the vehicles
wiring harness. STARTING AND OPERATING 351
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If using a manual transmission vehicle for trailer towing,
all starts must be in FIRST gear to avoid excessive clutch
slippage.
Towing Tips — Automatic Transmission
The “D” range can be selected when towing. However, if
frequent shifting occurs while in this range, the “TOW
HAUL” or “OD/OFF” range should be selected.
NOTE: Using the “TOW HAUL” or “OD/OFF” range
while operating the vehicle under heavy operating con-
ditions will improve performance and extend transmis-
sion life by reducing excessive shifting and heat build up.
This action will also provide better engine braking.
The automatic transmission fluid and filter should be
changed if you REGULARLY tow a trailer for more than
45 minutes of continuous operation. See Schedule “B” in
section 8 of this manual for transmission fluid change
intervals. NOTE: Check the automatic transmission fluid level
before towing.
Towing Tips — Tow/Haul (If Equipped)
To reduce potential for automatic transmission overheat-
ing, turn the “TOW HAUL OD/OFF” feature ON when
driving in hilly areas or shift the transmission to Drive
position 2 on more severe grades.
Towing Tips — Electronic Speed Control (If
Equipped)
Don’t use in hilly terrain or with heavy loads.
When using the speed control, if you experience speed
drops greater than 10 mph (16 km/h), disengage until
you can get back to cruising speed.
Use speed control in flat terrain and with light loads to
maximize fuel efficiency. STARTING AND OPERATING 353
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NOTE: Before installation of a snowplow it is highly
recommended that the owner / installer obtain and
follow the recommendations contained within the cur-
rent Dodge BODY BUILDER’S GUIDE. See your dealer,
installer or snowplow manufacture for this information.
There are unique electrical systems that must be con-
nected to properly assure operator safety and prevent
overloading vehicle systems.
WARNING!Attaching a snowplow to this vehicle could ad-
versely affect performance of the airbag system in an
accident. Do not expect that the airbag will perform
as described earlier in this manual CAUTION!The “Lamp Out” indicator could illuminate if exte-
rior lamps are not properly installed.
Before plowing
• Check the hydraulic system for leaks and proper fluid
level.
• Check the mounting bolts and nuts for proper tight-
ness.
• Check the runners and cutting edge for excessive wear.
The cutting edge should be 1/4 to 1/2 inch above
ground in snow plowing position.
• Check that snowplow lighting is connected and func-
tioning properly.356 STARTING AND OPERATING