Fast Idle System - Chevrolet 2008 Silverado 1500 Pickup Owner's Manual

2. If the engine does not start after 5-10 seconds,
especially in very cold weather (below 0°F or 18°C),
it could be flooded with too much gasoline. Try
pushing the accelerator pedal all the way to the floor
and holding it there as you hold the key in START
for up to a maximum of 15 seconds. Wait at least
15 seconds between each try, to allow the cranking
motor to cool down. When the engine starts, let go of
the key and accelerator. If the vehicle starts briefly
but then stops again, do the same thing. This clears
the extra gasoline from the engine. Do not race the
engine immediately after starting it. Operate the
engine and transmission gently until the oil warms
up and lubricates all moving parts.
Notice: The 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/retailer. If you do not, your
engine might not perform properly. Any resulting
damage would not be covered by your vehicle's
warranty.

Fast Idle System

Fast Idle System with Switch
This system can be used to increase your engine idle
speed whenever the following conditions are met:
•
The park brake is set.
•
The brake pedal is not pressed.
•
The vehicle must not be moving and the accelerator
must not be pressed.
If your vehicle has this
feature it is available
only with cruise control.
The manual fast idle switch
is operated using the
cruise control buttons
located on the left hand
side of the steering wheel.
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