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Chevy Silverado

Why would the security light on the dash keep blinking and the truck not start until it stops on a 1998 Chevy Silverado?


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2014-07-19 18:33:54
2014-07-19 18:33:54

The most common reason for this condition is a faulty ignition switch. It loses contact momentarily while cranking, causing a voltage loss to the security system and starts the 10 minute security timer in the computer. It will not start until the timer runs out. Usually the key has to be left on after a start attempt for the ten minutes. Some cars require 30 minutes.

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Possibly a security system activation light.

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It means the security system is armed.

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Not enough information regarding why the car won't start but as to he security light; it's always blinking when the engine is off.

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