Question about 1979 Ford F 350
I would suspect your key to be a duplicate key that you had made. I have seen this before. The OEM keys have something built-in to them that allows them to work. (I don't how they make them.) This was a theft protection issue so devious people that might have access to your keys somehow couldn't duplicate your key and steal your vehicle when your back was turned.
Posted on Feb 22, 2009
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Posted on Jan 02, 2017
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