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Problems on the Road
How to Add Coolant to the Coolant
High Fill Reservoir
-
LT1 Only
NOTICE:
I
The LT1 engine (Code P) has a
specific coolant high fill reservoir
fill procedure. Failure to follow this
procedure could cause your engine to
overheat and be severely damaged.
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.
.
.
.I54
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