Adding Coolant; Radiator Pressure Cap - GMC Envoy XL 2003 Owner's Manual

Adding Coolant

If you need more coolant, add the proper DEX-COOL@
coolant mixture at the coolant recovery tank.
Turning the radiator pressure cap when the
engine and radiator are hot can allow steam
and scalding liquids to blow out and burn you
badly. With the coolant recovery tank, you will
almost never have to add coolant at the
radiator. Never turn the radiator pressure
--
--
cap even a little
radiator are hot.
L
Add coolant mixture at the recovery tank, but be careful
not to spill it.
5-26
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when the engine and
You can be burned if
engine parts. Coolant contains ethylene glycol,
and it will burn if the engine parts are hot
I
enough. Don't spill coolant on a hot
I
Occasionally check the coolant level in the radiator.
For information on how to add coolant to the radiator,
see Cooling System on page 5-29.

Radiator Pressure Cap

Notice: Your pressure cap is a pressure-type cap
and must be tightly installed to prevent coolant loss
and possible engine damage from overheating.
See "Capacities and Specifications'' for more
information.
See Engine Compartment Overview on page 5-12 for
information on location.
u s I coolant on hot
engine.