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  1. H

    My 2004 Yukon started itself when I connected the battery cables, no key in ignition.

    I thought about this for just a second when I found the dead battery, since it was REALLY dead, i.e. completely non-rechargable. I need to take a look at that because I bet the relay never has been changed. Thanks
  2. H

    My 2004 Yukon started itself when I connected the battery cables, no key in ignition.

    Thanks for the info. I know a woman last drove it, but don't know what she had on the key chain. And it was not fobs, since I don't have a set of them.
  3. H

    My 2004 Yukon started itself when I connected the battery cables, no key in ignition.

    Thank you. And thanks for the specific information on changing the ignition switch. I have never had to do that in any of the (dozen?) vehicles I have had before, and the newer the vehicle, errggghhh. Anyway, I think its worth a trip to get a GM one if available, (for some reason the local...
  4. H

    My 2004 Yukon started itself when I connected the battery cables, no key in ignition.

    Thanks. I would never have guessed that. I think I just might do this. I am just puzzled because of all the things that have to happen to do this. But the key switch is a common link amongst what it would take to do this.
  5. H

    My 2004 Yukon started itself when I connected the battery cables, no key in ignition.

    Hi: As to your questions, lets see if I can answer them all. I am not the original owner, I bought it at 105K miles and it has approximately 125K miles after 4 years (I don't go very far to work, etc.). After looking around, and with the little routine thiings I did with it, everything is...
  6. H

    My 2004 Yukon started itself when I connected the battery cables, no key in ignition.

    Has this happened before, or do I have a scary problem. On my 2004 Yukon Denali, my battery went stone cold dead (0 voltage), and I picked up a replacement battery. I connected the positive terminal, and then the negative terminal, and the vehicle started and ran by itself. There was NO key in...

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