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4x4 won't switch ESOF, bucks while locked
Been reading tons of other posts and not sure I have the answer I need. I have an 08 F250. When I have the hubs on auto and put it into 4x4 on the dash you can hear the motor try to engage but the 4 wheel doesn't lock. I locked the hubs and put in in 4 in a parking lot. It is dry and just did a few circles but the truck started bucking and getting crazy. Now I'm confused and scared. Does this sound like a hub issue? I need my 4 wheel drive. I'm scared that if I lock it and engage on a bad day I might still break something based on how it drove today. My a/c doesn't switch to defrost when i switch while doing electronic (not locked). I was at my buddies shop the other day installing a dpf delete and it didnt feel like there was vacuum when we disconnected the line from the hub but not sure if we checked proper. I really don't wanna pay for trouble shooting quite yet til I feel confident i know somewhat the issue. Mainly concerned about the bucking today. I really need to get this going. so lame. I'm driving it in 2wd now with the hubs locked to see if I can get the hubs lubed up a little.
2008 F250 Quad cab, long bed, Diezel!! Spartan dash daq,dpf/cat delete, S&B CAI, trifold bed cover, rhino bed liner, Amp research auto steps, 6" lift, 35x18x13.50 tires, Avital Auto start, back up camera, , JVC Arsenal head, just put a billet grill on, more to come.