06 f250 4x4 auto not working
09-15-2009, 07:42 PM
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06 f250 4x4 auto not working
I have an 06 250. The hub is set on auto and when I shift to 4h in the truck it doesn't engage. I have to manualy turn the hub to lock. Any ideas?
Thanks
09-15-2009, 08:53 PM
Join Date: May 2006
Location: Edmonton, AB.
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Does it shift ok on the move with the hubs locked? If so, could be a vacuum pump problem. If your heat and AC are working properly (not stuck on defrost) then your pump is probably ok but your not getting vacuum to the hubs to engage them. Check the lines from each wheel back to the vacuum relay and accumulator. You probably have a line off going down to the wheels.
09-15-2009, 09:01 PM
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Does your heat or air work from the defroster only if so it is a vacuum leak.
09-16-2009, 09:05 PM
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ac and heat work fine, I will check the vac lines...Thanks
09-16-2009, 11:34 PM
Join Date: Mar 2009
Location: Mt. Shasta California
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