Acura 2000 NSX - Owner's Manual - Manual (Page 256)

If Your Engine Overheats
6. Look for any obvious coolant leaks,
such as a split radiator hose.
Everything is still extremely hot,
so use caution. If you find a leak, it
must be repaired before you
continue driving (see
Emergency
Towing on page
267 ).
7. If you don't find an obvious leak,
check the coolant level in the
expansion tank (see page
133 ).
8. If the expansion tank needs
coolant, you will have to remove
the cap. Before doing that, turn
the ignition switch ON (II) and
check the temperature gauge.
Remove the expansion tank cap
ONLY if the temperature gauge
pointer has come down to normal
or below and you do not hear any
bubbling or gurgling noises
coming from the cooling system.
9. Use a cloth or glove to protect
your hand while removing the
expansion tank cap. Without
pressing it downward, turn the cap
one-quarter turn counterclockwise.
Stop and wait for any pressure in
the expansion tank to escape.
Then press down on the cap and
turn it counterclockwise to remove
it.
CONTINUED
Taking Care of the Unexpected
Removing the expansion tank
cap while the engine is hot can
cause the coolant to spray out,
seriously scalding you.
Always let the engine and
radiator cool down before
removing the expansion tank
cap.
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