{
CAUTION:
Steam and scalding liquids from a hot cooling
system can blow out and burn you badly. They
are under pressure, and if you turn the radiator
pressure cap — even a little — they can come
out at high speed. Never turn the cap when the
cooling system, including the radiator pressure
cap, is hot. Wait for the cooling system and
radiator pressure cap to cool if you ever have
to turn the pressure cap.
How to Add Coolant to the Radiator
1. You can remove the radiator pressure cap when
the cooling system, including the radiator pressure
cap and upper radiator hose, is no longer hot.
Turn the pressure cap slowly counterclockwise about
one full turn. If you hear a hiss, wait for that to stop.
A hiss means there is still some pressure left.
2. Then keep turning the pressure cap. Remove the
pressure cap.
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Summary of Contents for 2008 Envoy Denali
Page 74: ... NOTES 1 70 ...
Page 137: ... NOTES 3 3 ...
Page 138: ...Instrument Panel Overview 3 4 ...
Page 238: ... NOTES 3 104 ...
Page 308: ...When you open the hood on the 5 3L V8 engine here is what you will see 5 14 ...
Page 416: ... NOTES 5 122 ...
Page 431: ...Engine Drive Belt Routing 4 2L V6 Engine 5 3L V8 Engine 6 15 ...
Page 454: ... NOTES 7 20 ...