4x4 system not responding at all

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JExpedition07

JExpedition07

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WHA??? a 2014 switch is NLA?? Was it superseded? That's only 3 years old....I thought they HAD to keep parts for 7 years??

jeff

That's what I said. Either I got a lazy person who didn't bother to type it in the computer because the new ones look different or it was superseded.
 
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JExpedition07

JExpedition07

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Turns out the 4WD switch was indeed bad thanks everyone especially Bedrck. I can put that behind me. Now I have new, bigger fish to fry lmao. my truck started violently shaking at 70 mph today in the passing lane and it does the same thing except more mild when braking. As soon as I drop to 65 it's smooth again. Man oh man can I catch a break here. Every time I've gone to pass after the first outburst it does the same thing and wants to shake apart. It almost feels as if the passenger side wheel is bouncing off the pavement. Tires are 2 months old with perfect tread.


Edit: the only thing I can compare it to is the dreaded super duty death wobble. The way it just starts and shakes violently until you do something to correct.
 
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