Chevrolet/GMC 2.8L Duramax Diesel Engine Supplement (GMNA-Localizing-
U.S./Canada-13336155) - 2020 - CRC - 5/6/19
Driving and Operating
17
Caution
Do not try to shift to P (Park) if the
vehicle is moving. If you do, you
could damage the transmission.
Shift to P (Park) only when the
vehicle is stopped.
Starting the Engine
1. Turn the ignition key to
ON/RUN.
Observe the wait-to-start light.
See
This light may not come on if
the engine is warm.
2. If the wait-to-start light is on,
wait until this light goes off.
Turn the ignition key to START,
then release the ignition key.
The engine will continue to
crank until the engine starts.
The engine has a fast warm-up
glow plug system. The
wait-to-start light will illuminate
for a much shorter time than
most diesel engines, due to the
rapid heating of the glow plug
system.
Caution
If the wait-to-start light stays on
after starting the vehicle, the
vehicle may not run properly.
Have the vehicle serviced
right away.
3. If the engine does not start
after 15 seconds of cranking,
turn the ignition off. Wait
one minute for the cranking
motor to cool, then try the
same steps again.
If you are trying to start the engine
after you have run out of fuel, follow
the steps in
When the engine is cold, let it run
for a few minutes before driving.
This lets oil pressure build up. The
engine will sound louder when it
is cold.
For turbo protection, engine power
at speeds above idle may be limited
if the engine is cold. This protection
can last up to a maximum of
40 seconds at extreme cold coolant
and ambient temperatures.
Cold Weather Starting
Use the recommended engine oil
when the outside temperature
drops below freezing. See
. When the outside
temperature drops below
–
18 °C
(0 °F), use of the engine coolant
heater is recommended.
If you experience longer cranking
times, notice an unusual amount of
exhaust smoke, or are at higher
elevations (over 2 135 m or 7,000 ft),
you may use the engine coolant
heater. See
See
for
information on what fuel to use in
cold weather.
If the Diesel Engine Will Not
Start
If the vehicle runs out of fuel, see
.