In order to maintain the proper operation of a
diesel engine, it is important to take proper care
of it, which includes cleaning as indicated.
CLEANING THE ENGINE
Engines are more efficient when they are clean
because grease and dirt buildup keep the engine
warmer than normal.
When washing:● Take care when using a power washer to
clean the engine. The high-pressure fluid
could penetrate the sealed parts and cause
damage.
● Do not spray a hot engine with cold water to
avoid cracking the engine block or other
engine components.
● Spray an engine shampoo and/or degreaser
on all parts that require cleaning and pres-
sure rinse clean.
● Never wash or rinse the engine while it is hot
or running; water in the running engine may
cause internal damage.
● Never wash or rinse any control box electri-
cal connections.
● Cover the battery, power distribution box,
and air filter assembly to prevent water dam-
age when cleaning the engine.
CLEANING THE EXHAUST
The visible holesAin the exhaust system are
functional. The holes need to be kept clear of
mud/debris or foreign material to maintain proper
function of the exhaust system. Clean and re-
move debris or foreign material if present as
needed. Spraying with a hose during regular
washing of vehicle should help keep holes clean
and clear of debris or foreign material.
WARNING
● Failure to maintain the functional holes
in the exhaust system clean and free of
debris or foreign material may result in
the holes becoming blocked or
plugged. Do not modify or remove sec-
tions of the exhaust system that contain
these holes. Blocked or plugged holes
or removal/modification of the system
could result in elevated exhaust gases
or exhaust gas temperatures which may
result in vehicle damage, personal in-
jury or death.
● The normal operating temperature of
the exhaust system is very high. Never
work around or attempt to repair any
part of the exhaust system until it has
cooled. Use special care when working
around the diesel oxidation catalytic
converter and/or the diesel particulate
filter (DPF) . The diesel oxidation cata-
lytic converter and/or the DPF heats up
to a high temperature after only a short
period of engine operation and can stay
hot even after the engine is turned off.
Failure to follow these instructions may
result in personal injury.
LCE2252
CLEANING
7-2Vehicle Care
