4X4 won't engage - Ford Powerstroke Diesel Forum
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post #1 of 2 Old 01-31-2010, 10:51 AM Thread Starter
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4X4 won't engage

I have an 08 f250. If I try to shift it to 4 high on the fly it will NOT engage. NEVER. If I stop and back up it will then go right in. Once it engages once then it will go in and out of 4 wheel for about an hour no problem. I have taken it to the dealer twice. They have changed an "engagement selanoid" and that still has not fixed it. Anyone have an advise? Similar problem? Thanks in advanced guys.

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post #2 of 2 Old 02-05-2010, 06:18 PM
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Got up this morning to go to work with 4 inches of snow on the ground. Tried to engage 4X4 and nothing worked hi or low. Took it to the dealer and was out in 30 minutes. They called it a hub vacuum seal that needed to be replaced. Drives fine now. Hope that helps a little.
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