Chevrolet Low Cab Forward 2016 Manual page 263

262 Vehicle Care
back to normal idle after 2 or
3 minutes. Idle the engine and
wait until the engine coolant
temperature drops to safety
zone. If your air conditioner is
on, turn it off. And turn on the
heater to help the engine
expel heat.
For the diesel engine, idle the
engine and wait until the
engine coolant temperature
drops to safety zone. If your air
conditioner (if equipped) is on,
turn it off. And turn on the
heater to help the engine
expel heat.
3. When the needle of the engine
coolant temperature gauge
returns to the middle of the
safety zone, stop the engine.
If the needle of engine coolant
temperature gauge does not
drop inside into the safety
zone, turn the engine off and
have your vehicle serviced at
the nearest dealer.
When the cooling fan for the
radiator is not turning, turn off
the engine immediately.
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 or open the
engine access cover.
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 0 254
for the proper coolant
and water mixture) into
the reserve tank only,
not directly into the
radiator. Also, do not
check engine coolant
level at the radiator.