GMC 1993 Safari Owner's Manual page 215

CAUTION
Steam from an overheated engine can burn you badly, even if you
just open the hood. Stay away from the engine if you see or hear
steam coming from
it.
Just turn it off and get everyone away
fl
the vehicle until it cools down. Wait until there is no sign of steam or
coolant before opening the hood.
If you keep driving when your ellylllG is overheated, the liquids in
It
can catch fire. You or others could be badly burned. Stop your
engine if it overheats, and get out of the vehicle until the engine
is
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NOTICE
If your engine catches fire because you keep driving with no coolant, your
vehicle can be badly damaged. The costly repairs would not be covered
by your warranty.
If No
Steam
Is Coming
From
Your Engine:
If you get the overheat warning but see or hear no steam, the problem may
not be too serious. Sometimes the engine can get a little too hot when you:
Climb a long hill on a hot day.
Stop after high speed driving.
Idle for long periods in traffic.
Tow a trailer.
If you get the overheat warning with no sign of steam, try this for a minute
or so:
1. If you have an air conditioner, turn it
off.
2. Turn your heater to full .hot at the fan speed and open the window
as
3. If you're in a traffic jam, shift to N (Neutral).
necessary.
If you no longer have the overheat warning, you can drive. Just to be safe,
drive slower for about ten minutes. If the warning doesn't come back on, you
can drive normally.
If the warning continues, pull over, stop, and park your vehicle right away.
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