Chevrolet 2001 Tahoe Owner's Manual page 283

4. With the coolant surge tank pressure cap off, start 5. Then replace the pressure cap. Be sure the pressure
-
the engine and let it run until you can feel the upper cap is hand tight.
radiator hose getting hot. Watch out for the engine
cooling fan.
By this time, the coolant level inside the coolant
surge tank may be lower. If the level is lower, add
more of the proper mixture to the coolant surge
tank until the level reaches the FILL COLD mark.
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