Chevrolet 1997 Cavalier Owner's Manual page 223

If the coolant inside the coolant surge tank is boiling,
don't do anything else until it cools down.
The coolant level should be at the FULL COLD line.
If it isn't, you may have a leak in the radiator hoses,
heater hoses, radiator, water pump or somewhere else in
the cooling system.
A
CAUTION:
Heater and radiator hoses, and other engine
parts, can be very hot. Don't touch them. If you
do, you can be burned,
Don't run the engine if there is a leak. If you run
the engine, it could lose all coolant, That could
cause an engine fire, and you could be burned.
Get any leak fixed before you drive the vehicle.
NOTICE:
Engine damage from running your engine
without coolant isn't covered by your warranty.
If there seems to
be
no leak, with the engine on, check to
see if the electric engine fan is running. If the engine is
overheating, the fan should be running. If it isn't, your
vehicle needs service.
5-1
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