Pontiac 1993 Sunbird Owner's Manual page 133

Problems on the Road
~
NOTICE:
I
Engine damage from running your
engine without coolant isn't
covered by your warranty.
If there seems to be no leak, 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.
How
to Add Coolant to
the
Coolant
Recovery Tank-2.01
14
Engine
If you haven't found a problem yet, but
the coolant level isn't at or above the
FULL COLD mark, add a 50/50
mixture of clean water (preferably
distilled) and a proper antifreeze at the
co'olant recovery tank. (See
Coolant in
the
Index for more information about
the proper coolant mix.)
1 3 2
NOTICE:
I
In cold weather, water can freeze
and crack the engine, radiator,
heater core and other parts. Use the
recommended coolant.
When the coolant in the coolant
recovery tank is at or above the FULL
COLD mark, start your vehicle.
If the overheat warning continues, there's
one more thing you can try. You can
add the proper coolant mix directly to
the thermostat housing, but be sure the
cooling system is cool before you do it.