RAM Truck 2013, Owner'S Manual

Page: 96 / 183

The DEF injection system and SCR catalyst enable the
achievement of diesel emissions requirements; while main-
taining outstanding fuel economy, drivability, torque and
power ratings.
Refer to “Electronic Vehicle Information Center (EVIC)”
in “Understanding Your Instrument Panel” for system
messages and warnings.
NOTE:
•
Your vehicle is equipped with a DEF injection system.
You may occasionally hear an audible clicking noise.
This is normal operation.
•
The DEF pump will run for a period of time after
engine shutdown to purge the DEF system. This is
normal operation.
94 STARTING AND OPERATING