Power Steering Fluid - GMC 1994 Sonoma Owner's Manual

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.
Power Steering Fluid
NOTICE:
Always turn the engine off before checking or adding power
steering fluid. The power steering cap is close to the fan and
other moving parts.
How To Check Power Steering Fluid
I
Unscrew the cap and
wipe the dipstick with
a clean rag. Replace
the cap and
completely tighten it.
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