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nsbu switch

  1. Transmission Shop
    Hello Everyone, I have a 07 Duramax CCLB 208k Bone stock. Started seeing “range shift inhibited” a few times, shifted from D to P, back to D no issues. Driving Monday heard spinning whining gear mesh /unmesh sound. Neutral only. Trans fluid good, religiously change fluid /filter. I have internal...
  2. 911 Problems Forum
    I have a 2005 LLY, 4WD, Crew Cab with a 5 speed allison. The gear selector at the column was acting up, not going into park for several seconds, and would not go into 1st or 2nd at all. I changed the NSBU switch thinking it would fix my problems. It fixed the slow park engagement, but it still...
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