Operating Temperature - Chevrolet Low Cab Forward 2023 Manual

If water is permitted to accumulate in
the primary filter, it will freeze and make
starting the engine impossible.
2. Make sure the fuel tank vent is open.
3. Always refuel at the end of a day's
operation. Moisture will condense in an
empty tank; therefore, the tank should
be filled before leaving the vehicle
standing for an extended period.
Do not use starting aids in the air intake
system. Such aids can cause immediate
engine damage. See Fuel for Diesel Engines
0 182.
Stopping the Engine
When stopping the diesel engine, take the
following steps:
1. Bring the vehicle to a complete stop.
2. Firmly apply the parking brake.
3. Move the selector lever to the "P"
position (models with P-range) or "N"
position (models without P-range) and
make sure that the shift indicator shows
"P" (models with P-range) or "N" (models
without P-range).
4. Allow the engine to idle for
approximately 3 minutes.
5. Turn the engine control switch to the
ACC or LOCK position.
Do not shut down the engine immediately
after driving the vehicle. Otherwise, a
seizure or other failures may result.
To prevent the battery from going dead,
turn the engine control switch to the ACC or
LOCK position after stopping the engine.
If you leave the vehicle for an extended
period of time, place the engine control
switch in the LOCK position.
Let the engine idle for 3 minutes before
shutting off the engine. This allows the
turbocharger to slow down while keeping
the bearings lubricated.
If the Vehicle Has Not Been Used for a Long
Period
If a diesel vehicle has been standing for an
extended period of time, the turbocharger
bearings should be pre-lubricated prior to
starting. See your authorized dealer for
more detailed information.
Before using a vehicle that has not been
driven for a long period, check the engine
and transmission for oil leakage, and make
sure the oil is at the required levels. If there
Driving and Operating
is insufficient oil, it will not adequately
reach and lubricate components, and a
breakdown will result.
Start the engine and allow it to idle for at
least five minutes. Check for abnormal
noises.
For instructions on warming up the engine,
refer to Starting the Engine previously in
this section.
If 1 year has passed since the diesel exhaust
fluid (DEF) in the DEF tank was added, the
DEF in the tank should be replaced. Be
careful not to inhale the ammonia odor
when replacing the DEF. Also, please contact
your nearest dealer about the
replacement work.

Operating Temperature

Recommendations for Warming Up the
Engine
The engine is sufficiently warmed up when
the needle of the engine coolant
temperature gauge starts to move.
Do not race the engine or quickly accelerate
before the engine has sufficiently warmed
up. Oil would not have adequately reached
and lubricated components, and a
breakdown may result.
135