Pontiac 1998 Trans Sport Owner's Manual page 305

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Engine Overheating
You will
find a
coolant temperature gage on your
vehicle's instrument panel. See "Engine Coolant
Temperature Gage'' in the Index.
You
also have a low
coolant level light on
your
instrument panel. See "Low
Coolant Light" in the Index.
Overheated Engine Protection
Operating Mode
Should an overheated engine condition exist, an
overheat protection mode which alternates firing
groups of
three
cylinders helps prevent engine damage.
In this mode, you will notice a significant loss in power
and engine performance. The low coolant light may
come on and the temperature gage will indicate an
overheat condition exists. This emergency operating
mode allows your vehicle to be driven to a safe glace
in an emergency. Towing
a
trailer in the overheat
protection mode should be avoided.
NOTICE:
After driving in the overheated engine
protection
operating mode, to avoid engine damage, allow
the engine to
cool
before attempting any repair.
The engine oil will be sev'erely
degraded.
Repair
the cause of coolant loss and change the oil. See
'(Engine Oil, When
to Change"
in the Index.
5-12

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