Chevrolet 2002 Silverado 1500 Pickup Owner's Manual page 105

When starting your engine in very cold weather (below
0 _ F or 18 _ C), do this:
-
1. With your foot off the accelerator pedal, turn the
ignition key to START and hold it there up to
15 seconds. When the engine starts, let go of the key.
2. If your engine still won't start (or starts but then
stops), it could be flooded with too much gasoline.
Try pushing your accelerator pedal all the way to the
floor and holding it there as you hold the key in
START for about three seconds. When the engine
starts, let go of the key and accelerator. If the vehicle
starts briefly but then stops again, do the same
thing, but this time keep the pedal down for five or
six seconds. This clears the extra gasoline from
the engine.
NOTICE:
Your engine is designed to work with the
electronics in your vehicle. If you add electrical
parts or accessories, you could change the way
the engine operates. Before adding electrical
equipment, check with your dealer. If you don't,
your engine might not perform properly.
Engine Coolant Heater (If Equipped)
At temperatures above 32 _ F (0 _ C), use of the coolant
heater is not required.
In very cold weather, 0 _ F
18 _ 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.
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