1. Wksanguins

    Wksanguins Member

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    Aug 10, 2018
    Hello everyone !! I have a 2013 Raptor crew cab headers exhaust and tuner I’ll post pics a bit later. My question is my 4 wheel drive doesn’t engage from switch neither does my ELD. If I disconnect the vacuum line 4 wheel drive works great when connected I got nothing my vacuum pump is working and I don’t get any grinding it just does nothing when connected light comes on in dash but no 4 wheel drive. As for ELD I am going to crawl under the truck tonight and see if I have voltage to the locker. Was winding if any of you have ran into this problem before ?

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