Cooling System - Chevrolet 2002 Tahoe Owner's Manual

Cooling System

When you decide it's safe to lift the hood, here's what
you'll see:
8100 V8 Engines
5-12
All Other Engines
A. Coolant Surge Tank
B. Coolant Surge Tank Pressure Cap
C. Engine Fan
If the coolant inside the coolant surge tank is boiling,
don't do anything else until it cools down. The vehicle
should be parked on a level surface.