Buick 1993 Century Owner's Manual page 199

2.2L
L4
Cooling System
=
1
When you decide it's safe to lift the hood, here's what
you'll see:
(A) Coolant recovery
tank
(B)
Radiator pressure cap
(C) Electric engine fan
I t ! ,
CAUTION:
An electric fan under the hood can start up
even when the engine is not running and can
injure you. Keep hands, clothing and tools
away from any underhood electric fan.
If the coolant inside the coolant recovery tank is boiling,
don't do anything else until it cools down.