Chevrolet/GMC 2013 DURAMAX Diesel Service Manual Page 102

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Black plate (24,1)
Chevrolet/GMC DURAMAX Diesel Supplement - 2013 - crc - 8/10/12
10-24 Vehicle Care
Engine Overheating
There is an engine coolant
temperature gauge on the
instrument panel cluster. See the
owner manual.
If Steam Is Coming from the
Engine Compartment
{
WARNING
Steam from an overheated engine
can burn you badly, even if you
just open the hood. Stay away
from the engine if you see or hear
steam coming from it. Just turn it
off and get everyone away from
the vehicle until it cools down.
Wait until there is no sign of
steam or coolant before you open
the hood.
(Continued)
WARNING (Continued)
If you keep driving when the
engine is overheated, the liquids
in it can catch fire. You or others
could be badly burned. Stop the
engine if it overheats, and get out
of the vehicle until the engine
is cool.
Notice: If the engine catches fire
because of being driven with no
coolant, the vehicle can be badly
damaged. The costly repairs
would not be covered by the
vehicle warranty.
If No Steam Is Coming from
the Engine Compartment
The COOLANT LEVEL LOW ADD
COOLANT Driver Information
Center (DIC) message, along with a
low coolant condition can indicate a
serious problem.
If there is an engine overheat
warning and the vehicle does not
have a low coolant condition, and
no steam is heard or seen, the
problem may not be too serious.
Sometimes the engine can get a
little too hot when the vehicle:
.
Climbs a long hill on a hot day.
.
Stops after high-speed driving.
.
Idles for long periods in traffic.
.
Tows a trailer. See Driving on
Grades in the owner manual.
If the COOLANT LEVEL LOW ADD
COOLANT Driver Information
Center (DIC) message comes on
with no sign of steam, try this for a
minute or so:
1. In heavy traffic, let the engine
idle in N (Neutral) while stopped.
If it is safe to do so, pull off the
road, shift to P (Park) or
N (Neutral) and let the
engine idle.
2. Turn on the heater to full hot at
the highest fan speed and open
the window as necessary.
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