2011 Ram 3500 check engine light

•Keep the front of the radiator clean. If your vehicle is
equipped with air conditioning, keep the front of the
condenser clean.
•Do not change the thermostat for Summer or Winter
operation. If replacement is ever necessary, install
ONLY the correct type thermostat. Other designs may
result in unsatisfactory cooling performance, poor gas
mileage, and increased emissions.
Charge Air Cooler – Inter-Cooler
The charge air cooler is positioned between the radiator
and the air conditioner condenser. Air enters the engine
through the air cleaner and passes through the turbo-
charger, where it is pressurized. This pressurized air
rapidly reaches high temperature. The air is then directed
through a hose to the charge air cooler and through
another hose to the intake manifold of the engine. The air
entering the engine has been cooled by about 50° to 100°F
(10° to 38°C). This cooling process enables more efficient
burning of fuel resulting in fewer emissions.To guarantee optimum performance of the system, keep
the surfaces of the charge air cooler, condenser and
radiator clean and free of debris. Periodically check the
hoses leading to and from the charge air cooler for cracks
or loose clamps resulting in loss of pressure and reduced
engine performance.
Brake System
Brake Master Cylinder – Brake Fluid Level Check
The fluid level of the master cylinder should be checked
when performing under the hood service, or immedi-
ately if the “Brake System Warning Light” indicates
system failure.
The brake master cylinder has a translucent plastic
reservoir. On the outboard side of the reservoir, there is a
“MAX” mark and an “MIN” mark. The fluid level must
be kept within these two marks. Do not add fluid above
the full mark because leakage may occur at the cap.
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MAINTAINING YOUR VEHICLE 119

NOTE:If it is necessary to check the transmission below
the operating temperature, the fluid level should be
between the two “COLD” (lower) holes on the dipstick
with the fluid at approximately 70°F (21°C) (room tem-
perature). If the fluid level is correctly established at
room temperature, it should be between the “HOT”
(upper) reference holes when the transmission reaches
180°F (82°C). Remember it is best to check the level at the
normal operating temperature.
CAUTION!
Be aware that if the fluid temperature is below 50°F
(10°C) it may not register on the dipstick. Do not add
fluid until the temperature is elevated enough to
produce an accurate reading.
7. Check for leaks. Release parking brake. To prevent dirt and water from entering the transmission
after checking or replenishing fluid, make certain that the
dipstick cap is properly reseated. It is normal for the
dipstick cap to spring back slightly from its fully seated
position, as long as its seal remains engaged in the
dipstick tube.
Fluid Level Check – AS68RC (Chassis Cab Only)
Check the fluid level while the transmission is at normal
operating temperature. This occurs after at least 15 miles
(25 km) of driving. At normal operating temperature, the
fluid cannot be held comfortably between the fingertips.
To properly check the transmission fluid, the following
procedure must be used.
1. The vehicle must be on level ground.
2. Operate the engine at idle speed for a minimum of
60 seconds and normal operating temperature.
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MAINTAINING YOUR VEHICLE 123

Adding Fuel............................ 83
Air Cleaner, Engine (Engine Air Cleaner
Filter) ............................. 102,126
Air Filter .............................. 102
Airbag Light ............................ 19
Antifreeze (Engine Coolant) .............. 114,115
Capacities ........................... 130
Disposal ............................ 117
Anti-Lock Warning Light ................... 19
Automatic Transmission .................... 68
Adding Fluid ......................... 122
Fluid Level Check ..................... 122
Fluid Type ........................ 122,133
Shifting .............................. 62
Axle Fluid ............................. 133
Battery ............................... 112
Blanket ........................... 51,113
Emergency Starting ..................... 90 Brake Fluid
............................ 133
Brake System ........................... 119
Fluid Check .......................... 119
Master Cylinder ....................... 119
Warning Light ......................... 14
Brake/Transmission Interlock ................ 61
Calibration, Compass ...................... 33
Capacities, Antifreeze (Engine Coolant) ........ 130
Capacities, Fluid ........................ 130
Caps, Filler Oil (Engine) .......................... 100
Radiator (Coolant Pressure) ............... 116
Charge Air Cooler ....................... 119
Check Engine Light (Malfunction Indicator
Light) ................................. 18
Compass .............................. 32
Compass Calibration ...................... 33
Compass Variance ........................ 33
162 INDEX

Jump Starting......................... 90
Oil .............................. 98,131
Oil Filler Cap ......................... 100
Oil Synthetic ......................... 102
Runaway ............................. 81
Temperature Gauge ..................... 11
Exhaust Brake ........................... 58
Exhaust System ......................... 126
Filters Engine Fuel .......................... 104
Engine Oil ...................... 98,102,131
Flashers Turn Signal ........................... 11
Fluid, Brake ........................... 133
Fluid Capacities ......................... 130
Fluid Level Checks Brake ............................... 119
Manual Transmission ................... 121 Transfer Case
......................... 121
Fluids, Lubricants and Genuine Parts .......... 131
Fog Lights ............................. 19
Fuel ................................ 81,83
Adding .............................. 83
Conserving ........................... 30
Diesel .......................... 81,83,131
Filter ............................... 104
Gauge ............................... 11
Requirements .......................... 81
Saver Mode ........................... 30
Specifications .......................... 82
Tank Capacity ........................ 130
Gasoline (Fuel) Conserving ........................... 30
Gauges Coolant Temperature .................... 11
Fuel ................................ 11
164 INDEX

Oil Pressure........................... 13
Speedometer .......................... 12
Tachometer ........................... 11
Voltmeter .......................... 14,49
Gear Ranges ........................ 64,69,75
Idle Up Feature .......................... 53
Information Center, Vehicle ................. 21
Instrument Cluster ...................... 10,11
Intervention Regeneration Strategy ........... 109
Jump Starting ........................... 90
Lights Airbag .............................. 19
Anti-Lock ............................ 19
Brake Warning ......................... 14
Check Engine (Malfunction Indicator) ........ 18
Electronic Stability Program (ESP) Indicator .... 20Fog ................................. 19
High Beam
........................... 14
High Beam Indicator .................... 14
Instrument Cluster ...................... 11
Seat Belt Reminder ...................... 20
Tire Pressure Monitoring (TPMS) ............ 16
Traction Control ........................ 20
Warning (Instrument Cluster Description) ...... 11
Locks Steering Wheel ......................... 6
Maintenance Procedures .................... 98
Maintenance Schedule .................... 136
Manual Transmission ...................... 74
Fluid Level Check ..................... 121
Lubricant Selection ..................... 133
Shift Speeds ........................... 75
Mini-Trip Computer ...................... 30
8
INDEX 165