GMC 1995 Jimmy Owner's Manual page 70

Driving Through Deep Standing Water
NOTICE:
If
you drive too quickly through deep puddles or standing water,
water can come in through your engine's
air
intake and badly
damage your engine. Never drive through water that is slightly
lower than the underbody of your vehicle. If you can't avoid
deep puddles or standing water, drive through them very slowly.
Engine Coolant Heater (Option)
4.3 Liter:
A. Engine coolant heater cord strap
B.
Engine coolant heater cord cap
In very cold weather, 0°F (-1 8 " C ) or colder, the engine coolant heater can
help. You'll get easier starting and better fuel economy during engine
warm-up. Usually, the coolant heater should be plugged in a minimum
of
four hours prior to starting your vehicle.
To use
the coolant heater:
1 . Turn off the engine.
2. Open the hood and unwrap the electrical cord.
3. Plug it into a normal, grounded 1 10-volt outlet.
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