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STARTING AND OPERATING 179
3. Fully insert the diesel nozzle into the filler pipe. Fill the
vehicle with fuel.
4. When the nozzle “clicks” or shuts off, the fuel tank is
full. Wait five seconds before removing the fuel nozzle
to allow excess fuel to drain from nozzle.
5. Remove the diesel nozzle, reinstall fuel cap and close
the fuel filler door.
NOTE:
When the fuel nozzle “clicks” or shuts off, the fuel tank
is full.
Tighten the fuel filler cap about a quarter turn until you
hear one click. This is an indication that the cap is prop-
erly tightened.
If the fuel filler cap is not tightened properly, the MIL
will come on. Be sure the cap is tightened every time
the vehicle is refueled.
AVOID USING CONTAMINATED FUEL
Fuel that is contaminated by water or dirt can cause
severe damage to the engine fuel system. Proper
maintenance of the engine fuel filter and fuel tank is
essential see
Ú page 345.
BULK FUEL STORAGE — DIESEL FUEL
If you store quantities of fuel, good maintenance of the
stored fuel is also essential. Fuel contaminated with water
will promote the growth of “microbes.” These microbes
form “slime” that will clog the fuel filtration system and
lines. Drain condensation from the supply tank and
change the line filter on a regular basis.
NOTE:
When a diesel engine is allowed to run out of fuel, air is
pulled into the fuel system.
If the vehicle will not start see
Ú page 347.
DIESEL EXHAUST FLUID
Your vehicle is equipped with a Selective Catalytic
Reduction (SCR) system to meet the very stringent diesel
emissions standards required by the Environmental
Protection Agency.
The purpose of the SCR system is to reduce levels of
NOx (oxides of nitrogen emitted from engines) that are
harmful to our health and the environment to a near-zero
level. A small quantity of Diesel Exhaust Fluid (DEF) is
injected into the exhaust upstream of a catalyst where,
when vaporized, it converts smog-forming nitrogen oxides
(NOx) into harmless nitrogen (N2) and water vapor (H2O),
two natural components of the air we breathe. You can
operate with the comfort that your vehicle is contributing
to a cleaner, healthier world environment for this and
generations to come.
System Overview
This vehicle is equipped with a Diesel Exhaust Fluid (DEF)
injection system and a Selective Catalytic Reduction (SCR)
catalyst to meet the emission requirements.
The DEF injection system consists of the following
components:
DEF tank
DEF pump
DEF injector
Electronically-heated DEF Lines
NOx sensors
Temperature sensors
SCR catalyst
The DEF injection system and SCR catalyst enable the
achievement of diesel emissions requirements; while
maintaining outstanding fuel economy, drivability, torque
and power ratings.
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.
4
23_JT_OM_EN_USC_t.book Page 179
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