Chevrolet SUBURBAN 1993 Owner's Manual page 293

Service & Appearance Care
Radiator
Pressure Cap
I
I
-
-
K2515
1
NOTICE
four radiator pressure cap is a 15 psi (105 kPa) pressure-type cap and
nust
be tightly installed to prevent coolant loss and possible engine
mage from overheating. Be sure the arrows on the cap line up with
werffow tube
on
the radiator filler neck.
- m
recommended.
I
Thermostat
Engine coolant temperature is controlled by a thermostat in the engine coolant
system. The thermostat stops the flow of coolant through the radiator until the
coolant reaches a preset temperature.
When you replace your thermostat, an AC@ thermostat is recommended.
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