Adding Coolant - GMC 2006 DURAMAX Manual

Checking Coolant
CAUTION:
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Turning the surge tank pressure cap when the
engine and radiator are hot can allow steam
and scalding liquids to blow out and burn you
badly. Never turn the surge tank pressure
cap — even a little — when the engine and
radiator are hot.
5-36
The coolant surge tank
is located in the engine
compartment on the
passenger's side of the
vehicle. See Engine
Compartment Overview
on page 5-18 for more
information on its location.
The vehicle must be on a level surface. When your
engine is cold, the coolant level should be at the
FULL COLD mark.

Adding Coolant

If you need more coolant, add the proper DEX-COOL
coolant mixture at the surge tank, but only when the
engine is cool. If the surge tank is empty, see Engine
Overheating on page 5-39.
CAUTION:
{
You can be burned if you spill coolant on hot
engine parts. Coolant contains ethylene glycol,
and it will burn if the engine parts are hot
enough. Do not spill coolant on a hot engine.
When replacing the pressure cap, make sure it is
hand- tight.
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