Engine Overheating - Chevrolet Captiva Owner's Manual

1. Remove the coolant surge tank
pressure cap when the cooling
system, including the coolant surge
tank pressure cap and upper radiator
hose, is no longer hot.
Turn the pressure cap slowly
counterclockwise about one-quarter
of a turn. If a hiss sound is heard,
wait for that to stop. This will allow
any pressure still left to be vented out
the discharge hose.
2. Then keep turning the pressure cap
slowly, and remove it.
3. Fill the coolant surge tank with the
proper coolant between the MIN
and MAX lines.
4. With the coolant surge tank pressure
cap off, start the engine and let it run
until the upper radiator hose can be
felt getting hot. Watch out for the
engine cooling fan.
By this time, the coolant level
inside the coolant surge tank may be
lower. If the level is lower, add more
of the proper coolant to the coolant
surge tank until the level reaches
between the MIN and MAX lines.
5. Then replace the pressure cap. Be
sure the pressure cap is hand-tight.
Check the level in the surge tank when
the cooling system has cooled down. If
the coolant is not at the proper level,
repeat Steps 1 to 3 and reinstall the
pressure cap. If the coolant still is not at
the proper level when the system cools
down again, see the CHEVROLET
retailer.
Vehicle Care 9-19

ENGINE OVERHEATING

There is a coolant temperature warning
light on the vehicle instrument panel. See
Engine Coolant Temperature Warning
Light on page 4-25.
If the engine coolant temperature gauge
pointer is in the red area, or if you have
any other reason to suspect the engine
may be overheating:
1. Stop the vehicle.
2. Turn off the air conditioning.
3. Let the engine idle for a few minutes.
4. Be sure the cooling fan is operating.
Warning
If steam is visible, move away from
vehicle until engine is cool. Steam
can cause serious burns.
Note
Using A/C while driving up long hills or
in heavy traffic can cause the engine
overheating.