Pontiac 2002 Grand Prix Owner's Manual page 98

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Engine Coolant Heater (Option)
In very cold weather, 0 _ F (
coolant heater can help. You'll get easier starting and
better fuel economy during engine warm
the coolant heater should be plugged in a minimum of
four hours prior to starting your vehicle. At temperatures
above 32 _ F (0 _ C), use of the coolant heater is
not required.
2-38
18 _ C) or colder, the engine
-
-
up. Usually,
To Use the Engine Coolant Heater
1. Turn off the engine.
2. Open the hood and unwrap the electrical cord.
The cord is located below the engine air
cleaner/filter near the coolant reservoir bottle.
See "Engine Compartment Overview" in the
Index for more information on location.
3. Plug it into a normal, grounded 110
CAUTION:
Plugging the cord into an ungrounded outlet
could cause an electrical shock. Also, the wrong
kind of extension cord could overheat and cause
a fire. You could be seriously injured. Plug the
cord into a properly grounded three
-
110
volt AC outlet. If the cord won't reach, use a
-
-
heavy
duty three
prong extension cord rated for
at least 15 amps.
-
volt AC outlet.
-
prong

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