2012 Ram 5500 Chassis Cab fuel pressure

CAUTION!
Due to lack of lubricants in alcohol or gasoline, the
use of these fuels can cause damage to the fuel
system.
NOTE:
•A maximum blend of 5% biodiesel, meeting ASTM
specification D-6751 may be used with your Cum-
mins diesel engine. Use of biodiesel mixture in excess
of 5% can negatively impact the fuel filter’s ability to
separate water from the fuel, resulting in high pressure
fuel system corrosion or damage.
•Ethanol blends are not recommended or approved for
use with your Cummins diesel engine.
•In addition, commercially available fuel additives are
not necessary for the proper operation of your Cum-
minsdiesel engine.
Intervention Regeneration Strategy – EVIC
Message Process Flow
The Cummins diesel engine meets all EPA Heavy Duty
Diesel Engine Emissions Standards, resulting in the low-
est emitting diesel engine ever produced.
To achieve these emissions standards, your vehicle is
equipped with a state-of-the-art engine and exhaust
system. The engine and exhaust after-treatment system
work together to achieve the EPA Heavy Duty Diesel
Engine Emissions Standards. These systems are seam-
lessly integrated into your vehicle and managed by the
Cummins Powertrain Control Module (PCM). The PCM
manages engine combustion to allow the exhaust sys-
tem’s catalyst to trap and burn Particulate Matter (PM)
pollutants, with no input or interaction on your part.
Additionally, your vehicle has the ability to alert you to
additional maintenance required on your truck or engine.
6
MAINTAINING YOUR VEHICLE 111

•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.6
MAINTAINING YOUR VEHICLE 121

Adding Fuel............................ 83
Air Cleaner, Engine (Engine Air Cleaner
Filter) ............................. 104,129
Air Filter .............................. 104
Airbag Light ............................ 24
Alarm Light ............................ 17
Anti-Lock Warning Light ................... 21
Antifreeze (Engine Coolant) .............. 116,117
Capacities .......................... 133
Disposal ........................... 119
Automatic Transmission .................... 64
Adding Fluid ....................... 125
Fluid Level Check .................... 124
Fluid Type ...................... 124,136
Shifting ............................ 54
Axle Fluid ............................. 136
Battery ............................... 114
Blanket .......................... 43,115Emergency Starting
.................... 92
Brake Fluid ............................ 136
Brake System ........................... 121
Fluid Check ........................ 121
Master Cylinder ..................... 121
Warning Light ....................... 19
Brake/Transmission Interlock ................ 53
Capacities, Antifreeze (Engine Coolant) ........ 133
Capacities, Fluid ........................ 133
Caps, Filler Oil (Engine) ........................ 103
Radiator (Coolant Pressure) ............. 118
Charge Air Cooler ....................... 121
Check Engine Light (Malfunction Indicator
Light) ................................. 23
Coolant Pressure Cap (Radiator Cap) .......... 118
Cooling System ......................... 115
Adding Coolant (Antifreeze) ............. 117
164 INDEX

Coolant Capacity..................... 133
Coolant Level .................... 1 15,119
Disposal of Used Coolant ............... 119
Drain, Flush, and Refill ................ 116
Inspection .......................... 119
Points to Remember .................. 120
Pressure Cap ........................ 118
Radiator Cap ........................ 118
Selection of Coolant (Antifreeze) ....... 116,134
Diesel Exhaust Brake ...................... 50
Diesel Fuel ............................. 82
Diesel Fuel Requirements ................... 82
Bulk Storage of ....................... 84
Diesel Fuel System, Re-Priming .............. 110
Dipsticks .............................. 100
Disposal .............................. 104
Antifreeze (Engine Coolant) ............. 119
Engine Oil ......................... 104 Draining Fuel/Water Separator Filter
.......... 106
Electronic Range Select (ERS) ..............60,71
Electronic Vehicle Information Center (EVIC) ..... 25
Emergency, In Case of Jump Starting ........................ 92
Engine ................................ 99
Air Cleaner ......................... 104
Block Heater ....................... 35,49
Break-In Recommendations .............. 12
Compartment ........................ 99
Coolant (Antifreeze) .................. 134
Identification ........................ 99
Idling ............................. 44
Jump Starting ........................ 92
Oil ............................ 100,134
Oil Filler Cap ....................... 103
Oil Synthetic ........................ 104
Runaway ........................... 81
8
INDEX 165

Temperature Gauge.................... 15
Exhaust Brake ........................... 50
Exhaust System ......................... 129
Filters Engine Fuel ........................ 106
Engine Oil .................... 100,104,134
Flashers Turn Signal ......................... 15
Fluid Capacities ......................... 133
Fluid Level Checks Brake ............................. 121
Manual Transmission .................. 124
Transfer Case ....................... 123
Fluid, Brake ........................... 136
Fluids, Lubricants and Genuine Parts .......... 134
Fog Lights ............................. 24
Fuel ................................ 82,83
Adding ............................ 83 Diesel
......................... 82,83,134
Filter ............................. 106
Gauge ............................. 15
Requirements ........................ 82
Specifications ........................ 83
Tank Capacity ....................... 133
Gauges Coolant Temperature ................... 15
Fuel ............................... 15
Oil Pressure ......................... 17
Speedometer ......................... 16
Tachometer .......................... 15
Voltmeter ......................... 18,41
Gear Ranges ........................ 54,65,76
Idle Up Feature .......................... 44
Information Center, Vehicle ................. 25
Instrument Cluster ...................... 14,15
166 INDEX

Signals, Turn............................ 15
Speedometer ............................ 16
Starting .............................. 8,34
Automatic Transmission ................ 34
Engine Block Heater ................. 35,49
Manual Transmission .................. 34
Remote ............................. 8
Starting Procedures ....................... 34
Starting Procedures (Diesel Engines) ........... 34
Steering Wheel Lock .......................... 8
Synthetic Engine Oil ...................... 104
System, Remote Starting .................... 8
Tachometer ............................. 15
Temperature Gauge, Engine Coolant ........... 15
Tip Start ............................... 34
Ti re s Pressure Warning Light ................. 21 Torque Converter Clutch
.................63,74
Tow/Haul ............................. 62
Traction Control ......................... 123
Traction Control Light ..................... 17
Transfer Case Fluid ............................. 136
Transmission Automatic ........................ 54,64
Fluid ............................. 136
Manual .......................... 34,75
Shifting ............................ 52
Trip Odometer ........................ 17,18
Turn Signals ............................ 15
Viscosity, Engine Oil ...................... 103
Voltmeter ............................ 18,41
Warning Lights (Instrument Cluster Description) . . 15
Water Separator, Diesel Fuel ................ 106
8
INDEX 169