How
to Add Coolant to the Coolant High
Fill Reservoir
(5.7L LT5
(Code
J)
Engine)
2.
Then keep turning the pressure cap, but now push
down as you turn it. Remove the pressure cap.
1.
You
can remove the coolant high fill reservoir
pressure cap when the cooling system, including the
coolant high fill reservoir pressure cap and upper
radiator hose, is no longer hot. Turn the pressure cap
slowly
to the left until it first stops. (Don’t press
down while turning the pressure cap.)
If you hear a
hiss,
wait for that to stop.
A
hiss means
there is still
some
pressure left.
5-20
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