If the service engine soon indicator remains
on, have your vehicle serviced at the first
available opportunity. Although some
malfunctions detected by the OBD-II may
not have symptoms that are apparent,
continued driving with the service engine
soon indicator on can result in increased
emissions, lower fuel economy, reduced
engine and transmission smoothness, and
lead to more costly repairs.
Readiness for
Inspection/Maintenance (I/M)
Testing
Some state/provincial and local
governments may have
Inspection/Maintenance (I/M) programs
to inspect the emission control equipment
on your vehicle. Failure to pass this
inspection could prevent you from getting
a vehicle registration.
If the service engine soon
indicator is on or the bulb does
not work, you may need to have
the vehicle serviced. See On-Board
Diagnostics (OBD-II).
Your vehicle may not pass the I/M test if
the service engine soon indicator is on or
not working properly (bulb is burned out),
or if the OBD-II system has determined
that some of the emission control systems
have not been properly checked. In this
case, your vehicle is not ready for I/M
testing.
If the vehicle ’s engine or transmission has
just been serviced, or the battery has
recently run down or been replaced, the
OBD-II system may indicate that the
vehicle is not ready for I/M testing. To
determine if the vehicle is ready for I/M
testing, turn the ignition key to the on
position for 15 seconds without cranking the engine. If the service engine soon
indicator blinks eight times, it means that
the vehicle is not ready for I/M testing; if
the service engine soon indicator stays on
solid, it means that the vehicle is ready for
I/M testing.
The OBD-II system monitors the emission
control system during normal driving. A
complete check may take several days. If
the vehicle is not ready for I/M testing, you
may need to perform the following driving
cycle consisting of mixed city and highway
driving:
Drive on an expressway or highway for a
steady 15 minutes, followed by 20 minutes
of stop-and-go driving with at least four
30-second idle periods.
Allow the vehicle to sit for at least eight
hours without starting the engine. Then,
start the engine and complete the above
driving cycle. The engine must warm up to
its normal operating temperature. Once
started, do not turn off the engine until the
above driving cycle is complete. If the
vehicle is still not ready for I/M testing, you
will have to repeat the above driving cycle.
EMISSION CONTROL SYSTEM
- 6.7L DIESEL
Diesel Exhaust System: Oxidation
Catalyst And Diesel Particulate
Filter System (If Equipped)
Your vehicle is equipped with a diesel
particulate filter. The diesel particulate
filter is an inline filter in the exhaust system
that reduces carbon emissions by trapping
exhaust particles before they reach the
tailpipe. The diesel particulate filter looks
similar to a traditional exhaust catalyst,
except larger, and is part of the exhaust
system under your vehicle. The filter
couples to a diesel oxidation catalyst that
reduces the amount of harmful exhaust
emitted from the tailpipe. As soot gathers
105
F650750 (TBC), enUSA, First Printing Fuel and Refueling
Driving Through Water...............................150
Operation in Standing Water......................... 150
DRL See: Daytime Running Lamps......................... 48
E
Economical Driving.......................................147
Electrical System Inspection....................217
Accessory Feed Connections.......................... 217
Electronic Locking Differential.................118 Activating the Locking Differential................119
Driver-Controlled Locking Differential.........118
Servicing a Vehicle with a Locking
Differential........................................................ 119
Emission Control System - 6.7L Diesel.............................................................105
Diesel Exhaust System: Oxidation Catalyst And Diesel Particulate Filter System
........................................................................\
...... 105
Emission Control System - 6.8L.............103 On-Board Diagnostics (OBD-II)................... 104
Readiness for Inspection/Maintenance (I/M) Testing................................................... 105
End User License Agreement
.................345
SYNC End User License Agreement
(EULA).............................................................. 345
Engine Block Heater
.....................................88
Rapid Heat Supplemental Heating
System................................................................ 89
Using the Engine Block Heater....................... 89
Engine Coolant Check - 6.7L Diesel.......195 Adding Engine Coolant..................................... 195
Checking Coolant Corrosion Inhibitor Additive Strength ......................................... 198
Coolant Change.................................................. 199
Engine and Secondary Cooling System Refill Procedure.............................................. 197
Engine-driven Cooling Fan (Fan Clutch) ............................................................... 199
Recycled Engine Coolant................................. 197
Severe Climates.................................................. 198Engine Coolant Check - 6.8L...................190
Adding Engine Coolant.................................... 190
Coolant Change.................................................. 192
Engine and Secondary Cooling System Refill Procedure............................................... 191
Engine-driven Cooling Fan (Fan Clutch)............................................................... 193
Recycled Engine Coolant................................. 192
Severe Climates.................................................. 192
What You Should Know About Fail-Safe Cooling............................................................... 193
Engine Idle Shutdown..................................88
Engine Immobilizer See: Passive Anti-Theft System..................... 42
Engine Oil Check - 6.7L Diesel.................186 Engine Oil Specifications................................ 186
Engine Oil Check - 6.8L
..............................185
Adding Engine Oil............................................... 185
Engine Oil Dipstick - 6.7L Diesel.............185
Engine Oil Dipstick - 6.8L..........................185
Engine Specifications - 6.7L Diesel........251 Drivebelt Routing................................................ 251
Engine Specifications - 6.8L.....................251 Drivebelt Routing................................................ 251
Entering, Exiting or Climbing on This Vehicle..............................................................15
Environment.....................................................16
Essential Towing Checks...........................142 Before Towing a Trailer..................................... 142
Hitches.................................................................... 142
Safety Chains....................................................... 142
Trailer Brakes........................................................ 142
Trailer Lamps........................................................ 142
When Towing a Trailer...................................... 142
Event Data Recording See: Data Recording............................................. 12
Exhaust Brake................................................126 Exhaust Brake Operating
Characteristics................................................ 127
Exhaust System Inspection......................218
Export Unique Options.................................14
Extended Service Plan (ESP)
..................312
SERVICE PLANS (CANADA ONLY)..............313
SERVICE PLANS (U.S. Only).......................... 312
369
F650750 (TBC), enUSA, First Printing Index