Chevrolet Low Cab Forward 2023 Manual page 209

208 Vehicle Care
Warning
Even when the engine has been stopped,
the engine coolant in the radiator
remains under pressure. Immediately
removing the radiator cap could cause
steam or hot water to blow out, and you
could be scalded as a result. The engine
coolant in the reserve tank may also be
hot. Immediately removing the cap could
cause hot water to blow out, and
possibly scald you. Perform inspection,
refilling, and replacement of coolant only
when its temperature has cooled.
When removing the radiator cap and
reserve tank cap, use a thick cloth to
cover the cap and turn it little by little.
You and others could be seriously injured.
4. If no steam or engine coolant can be
seen or heard from the engine
compartment:
Tilt the cab.
If the engine coolant is boiling,
wait until it stops before
proceeding.
Look at the see-through reserve
tank. The engine coolant level
should be between the "MAX"
and "MIN" lines on the
reserve tank.
If necessary, pour engine coolant
(See Engine Coolant 0 203 for
the proper coolant and water
mixture) into the reserve tank
only, not directly into the sub
tank. Also, do not check engine
coolant level at the radiator.
Make sure the fan belts are not
broken, or off the pulleys, and that
the fan turns when the engine is
started. Make sure the fan blade and
pulleys are not broken.
Check the radiator hoses and
connections, heater hoses and
connections, radiator, water pump,
EGR cooler, and SCR system and
hoses for leakage.
If you do not find a leak or other
problem, carefully add engine coolant
to the reserve tank.
If the engine coolant level in the
reserve tank is at the correct level
but there is still an indication on the
instrument panel of an overheat
condition:
You must let the engine cool first.
You may then add engine coolant
directly to the sub tank. See Adding
Engine Coolant under Engine Coolant
0 203.