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GMC 1998 Sonoma Owner's Manual page 227

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Heater and radiator hoses, and other engine
parts, can be very hot. Don't touch them. If you
do, you can be burned.
Don't run the engine if there is a leak. If you run
the engine, it could lose all coolant. That could
cause an engine fire, and you could be burned.
Get any leak fixed before you drive the vehicle.
NOTICE:
Engine damage from running your engine
without coolant isn't covered by your warranty.
~
~~
~~
~
If there seems to be no leak, start the engine again.
See if the engine cooling fan speed increases when
idle speed is doubled by pushing the accelerator pedal
down. If
it
doesn't, your vehicle needs service. Turn
off the engine.
How to Add Coolant to the Coolant
Recovery Tank
I f you haven't found
a problem yet? but the coolant level
isn't at the ADD mark, add a 50/50 mixture of c.lo.cr,z
~ ~ ~ u r e r
(preferably distilled) and DEX-COOL' engine
coolant at the coolant recovery tank. (See "Engine
Coolant" in the Index for more information.)
A
CL' UTION:
-
Adding only plain water to your cooling system
can be dangerous. Plain water, or some other
liquid like alcohol, can boil before the proper
coolant mixture will. Your vehicle's coolant
warning system is set for the proper coolant
mixture. With plain water or the wrong mixture,
your engine could get too hot but you wouldn't
get the overheat warning. Your engine could
catch fire and you or others could be burned.
Use a 50/50 mixture of clean water and
DEX-COOL@ coolant.
5-15

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