fuel pressure Ram 2500 2018 Owner's Manual

5. Remove bottom cover using a strapwrench. Rotate counterclockwise for re-
moval. Remove the used o-ring and dis-
card it.
6. Remove the used filter cartridge from the housing and dispose of it according to
your local regulations.
7. Wipe the sealing surfaces of the lid and housing clean.
8. Install a new o-ring into the ring groove on the filter housing and lubricate with clean
engine oil.
NOTE:
WIF (Water In Fuel) sensor is re-usable. Ser-
vice kit comes with new o-ring for filter can-
ister and WIF sensor.
Priming If The Engine Has Run Out
Of Fuel
WARNING!
Do not open the high pressure fuel system
with the engine running. Engine operation
causes high fuel pressure. High pressure
WARNING!
fuel spray can cause serious injury or
death.
1. Add a substantial amount of fuel to the tank, approximately 2 to 5 gal (8L to
19L).
2. Press ignition switch twice without your foot on brake to put vehicle in Run posi-
tion. This will activate the in tank fuel
pump for approximately 30 seconds. Re-
peat this process twice.
3. Start the engine using the “Normal Start- ing” procedure. Refer to “Starting The
Engine” in “Starting and Operating” for
further information.
CAUTION!
The starter motor will engage for approxi-
mately 30 seconds at a time. Allow two
minutes between cranking intervals.
NOTE:
The engine may run rough until the air is
forced from all the fuel lines.
WARNING!
Do not use alcohol or gasoline as a fuel
blending agent. They can be unstable un-
der certain conditions and be hazardous or
explosive when mixed with diesel fuel.
CAUTION!
Due to lack of lubricants in alcohol or
gasoline, the use of these fuels can cause
damage to the fuel system.
NOTE:
• Use of biodiesel mixture in excess of 20% can negatively impact the fuel filter's abil-
ity to separate water from the fuel, resulting
in high pressure fuel system corrosion or
damage.
• In addition, commercially available fuel ad- ditives are not necessary for the proper
operation of your diesel engine.
• For extreme cold conditions, "Mopar Pre- mium Diesel Fuel Treatment" is recom-
mended to assist with cold starting.
251

Priming If The Engine Has Run
Out Of Fuel
WARNING!
Do not open the high pressure fuel system
with the engine running. Engine operation
causes high fuel pressure. High pressure
fuel spray can cause serious injury or
death.
1. Add a substantial amount of fuel to the tank, approximately 2 to 5 gal (8L to
19L).
2. Turn ignition switch to the start position to engage starter for one second, return ig-
nition switch to run position. This will
activate in tank fuel pump for approxi-
mately 15 seconds. Repeat this process
twice.
3. Start the engine using the “Normal Start- ing” procedure. Refer to “Starting Proce-
dures” in “Starting and Operating” for
further information.
CAUTION!
Do not engage the starter motor for more
than 15 seconds at a time. Allow two
minutes between the cranking intervals.
NOTE:
The engine may run rough until the air is
forced from all the fuel lines.
WARNING!
Do not use alcohol or gasoline as a fuel
blending agent. They can be unstable un-
der certain conditions and be hazardous or
explosive when mixed with diesel fuel.
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, meet-
ing ASTM specification D-975 may be used
with your Cummins diesel engine. (Chassis
Cab models not configured with B20 capa-
bility.)
• A maximum blend of 20% biodiesel, meet- ing ASTM specification D-7467 may be
used with your Cummins diesel engine.
(Pickup models and Chassis Cab models
configured with B20 capability.)
• Use of biodiesel mixture in excess of 20% can negatively impact the fuel filter's abil-
ity 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 ad- ditives are not necessary for the proper
operation of your Cummins diesel engine.
SERVICING AND MAINTENANCE
256

WARNING!
Overloading of your tires is dangerous.
Overloading can cause tire failure, affect
vehicle handling, and increase your stop-
ping distance. Use tires of the recom-
mended load capacity for your vehicle.
Never overload them.
Tires — General Information
Tire Pressure
Proper tire inflation pressure is essential to
the safe and satisfactory operation of your
vehicle. Four primary areas are affected by
improper tire pressure:
• Safety and Vehicle Stability
• Economy
• Tread Wear
• Ride ComfortSafety
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 re-
sult in tire failure.
• Overinflated or underinflated tires can
affect vehicle handling and can fail sud-
denly, resulting in loss of vehicle con-
trol.
• Unequal tire pressures can cause steer-
ing 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 recommended 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 respon-
siveness in the steering.
NOTE:
• Unequal tire pressures from side to side
may cause erratic and unpredictable steer-
ing 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 consump-
tion.
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 comfort-
able ride. Over-inflation produces a jarring
and uncomfortable ride.
SERVICING AND MAINTENANCE
264

Accessories..................287
Mopar ...................287
Adding Fuel ..........181, 182, 186
Additives, Fuel ................182
Adjustable Pedals ...............30
Air Bag Air Bag Operation ............106
Air Bag Warning Light .........104
Enhanced Accident Response .114, 227
Event Data Recorder (EDR) ......227
If A Deployment Occurs ........113
Knee Impact Bolsters .........107
Maintaining Your Air Bag System . .114
Transporting Pets ............133
Air Bag Light ...........76, 104, 135
Air Bag Maintenance ............114
Air Cleaner, Engine (Engine Air Cleaner Filter) ...........249, 252
Air Conditioning Filter ............48
Air Conditioning, Operating Tips ......48
Air Conditioning System ...........47
Air Filter ...................252
Air Pressure, Tires ..............265
Air Suspension ............170, 172
Alarm, Panic ..................15 Alarm (Security Alarm)
.........18, 77
Alarm System (Security Alarm) .......18
Antifreeze (Engine Coolant) ........278
Capacities ................279
Anti-Lock Warning Light ...........81
Audio Jack ..................325
Automatic Headlights ............33
Automatic High Beams ...........33
Automatic Temperature Control (ATC) . . .47
Automatic Transmission ..........156
Fluid Type .........282, 284, 286
Shifting ..............158, 160
Automatic Transmission Limp Home Mode ....................157
Axle Fluid ............282, 284, 286
Back-Up ...................179
Back-Up Camera ..............179
Battery .....................

77
Charging System Light .........77
Belts, Seat ..................134
Body Builders Guide ..............2
B-Pillar Location ..............261
Brake Fluid ..............282, 284 Brake System
Warning Light ...............76
Brake/Transmission Interlock .......156
Bulb Replacement .............202
Bulbs, Light ..............136, 202
Camera ....................179
Camera, Rear ................179
Capacities, Antifreeze (Engine Coolant) ..................279
Capacities, Fluid ...........278, 279
Caps, Filler Oil (Engine) ...............243
Carbon Monoxide Warning .........134
Cargo Light ...................34
Chart, Tire Sizing ..............258
Checking Your Vehicle For Safety . . . .134
Checks, Safety ................134
Child Restraint ................115
Child Restraints Booster Seats ..............118
Child Restraints .............115
Child Seat Installation .....126, 127
How To Stow An Unused ALR Seat
Belt ....................125
INDEX
357

AirBag ............76, 104, 135
Automatic Headlights..........33
Battery Saver ...............32
Brake Warning ..............76
Bulb Replacement ...........202
Cargo ....................34
Cruise .................83, 84
Daytime Running ............32
Dimmer Switch, Headlight .......32
Engine Temperature Warning .....77
Exterior ..................136
Fog .....................82
Hazard Warning Flasher ........202
Headlights .................32
Headlights On Reminder ........32
Headlight Switch .............32
High Beam ................32
High Beam/Low Beam Select .....32
Instrument Cluster ............32
Lights On Reminder ...........32
Low Fuel ..................81
Malfunction Indicator (Check Engine) .78
Park ....................83
Passing ..................32
Seat Belt Reminder ...........76
Security Alarm ..............77
Service ..................202 Tire Pressure Monitoring (TPMS) .79, 88
Turn Signal
.......32, 33, 83, 136
Warning (Instrument Cluster
Description) .............77, 83
Loading Vehicle Tires ...................261
Low Tire Pressure System ..........88
Lug Nuts ...................276
Maintenance Plan ..........235, 239
Maintenance Schedule .......230, 234, 237, 239
Malfunction Indicator Light (Check Engine) ...............78
Manual, Service ...............355
Manual Transmission Lubricant Selection ..........282
Memory Feature (Memory Seat) ......22
Memory Seat ..................22
Memory Seats And Radio ..........22
Mirrors .....................31
Memory ..................22
Monitor, Tire Pressure System .......88
Mopar .....................287
Mopar

Accessories .............287
Multi-Function Control Lever ........32Navigation
...........327, 329, 330
Navigation System (Uconnect GPS) . . .179
New Vehicle Break-In Period . . . .153, 154
Occupant Restraints .............93
Oil Change Indicator ............238
Oil, Engine ...........280, 283, 285
Capacity ..............278, 279
Filter ............280, 283, 285
Pressure Warning Light .........77
Recommendation ...........278
Viscosity .................278
Oil Pressure Light ...............77
Onboard Diagnostic System .........84
Operating Precautions ............84
Overheating, Engine ............220
Owner's Manual (Operator Manual) . . .355
Panic Alarm ..................15
ParkSense System, Rear ..........179
Passive Entry .................19
Pedals, Adjustable ..............30
Perform Service Indicator, Reset .....239
Personalized Menu Bar ...........309
Pets ......................133
Phone, Hands-Free (Uconnect) ......332
Phone (Pairing) ...............334
INDEX
360

Jacking..................211
Life Of Tires ...............267
Load Capacity ..............261
Pressure Monitor System (TPMS) . . .88
Pressure Warning Light .........79
Quality Grading .............272
Radial ..................266
Replacement ..............267
Safety ...............257, 264
Sizes ...................258
Snow Tires ................269
Spare Tire .........269, 270, 271
Spinning .................266
Tread Wear Indicators .........267
Wheel Nut Torque ...........276
Tire Safety Information ...........257
To Open Hood .................50
Towing .....................191
Disabled Vehicle ............225
Guide ...................191
Recreational ...............196
Weight ..................191
Towing Vehicle Behind A Motorhome . .196
Trailer Towing ................191
Minimum Requirements .......191
Trailer Towing Guide ............191
Trailer Weight ................191 Transfer Case
Electronically Shifted . .162, 164, 166,
168 Fluid ............282, 284, 286
Transmission .................156
Automatic .........156, 158, 160
Fluid ............282, 284, 286
Shifting .................155
Transporting Pets ..............133
Tread Wear Indicators ............267
Turn Signals .............32, 33, 83
Uconnect 3.0 ................295
Uconnect

(Hands-Free Phone)
Making A Phone Call ......332, 338
Receiving A Call ............332
Uconnect Phone ........332, 337, 338
Uconnect Settings Customer Programmable Features . . .19
Passive Entry Programming .......19
Uconnect Voice Command .....337, 340
Uniform Tire Quality Grades ........272
Untwisting Procedure, Seat Belt ......98
USB Port ...................325
Utility Rails, Rear Cargo Area ........62Vehicle Loading
...............261
Vehicle Storage ................48
Vehicle User Guide ICON Symbol Glossary ..........11
In Vehicle Help ..............11
IVH .....................11
Navigation .................11
Operating Instructions ..........11
Searching User Guide ..........11
Voice Command ...............337
Voice Recognition System (VR) ..............337, 338, 340
Voltmeter ................149, 151
Warning Lights (Instrument Cluster Description) .................79
Washers, Windshield .............35
Water Separator, Diesel Fuel . . . .249, 253
Wheel And Wheel Trim ...........271
Wheel And Wheel Trim Care ........271
Wheel Cover .................217
Wheel Nut Torque ..............276
Wind Buffeting ................50
Window Fogging ................48
363