Question about 2004 GMC Sierra 1500 Crew Cab

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I have a 2004 GMC Sierra.It discharges the battery over night,and sometimes will not turn off even when the key is turned off and removed from the ignition switch.The first thing that I did was have had the alternator and battery checked.Both were good.Anyone else have this kind of experience?

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To me I would say you have a faulty ignition switch, when turning the key, the tumblers inside move a connection between the contacts and its feed, if this key does not activate the contacts correctly, then there is still a power supply being fed. You might be lucky in finding that when you remove the steering housing to view the switch, it may have become dislodged for some reason from the back of the ignition switch and may simply just need clicking/ securing back into position. Good luck

Posted on Nov 20, 2009

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Are you saying that the engine stays running when you take the key out? If so, I would say you have a bad ignition switch. If the battery goes dead even though everything seems to be off, you need to check it for a parasitic draw -- courtesy lights are a common cause.

Posted on Nov 20, 2009

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The ignition switch is bad.

Posted on Nov 20, 2009

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