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NSBU switch plug, anyone changed one?

Discussion in 'Chevy Trucks' started by pipelayer, Oct 15, 2014.

  1. pipelayer

    pipelayer Senior Member
    from CT
    Messages: 139

    I had a wire pull out of the NSBU switch plug on my lb7. the lower plug on the switch the 7 pin connector. I ordered a plug from merchant automotive (awesome place to get your duramax parts from) and the pigtail on the new plug has different color wires, and no real schematic. if I can lower the trans harness enough to cut and splice one at a time, i could do it.wondering if anyone has installed this part in theyre truck and knows which wire goes to where or has a schematic or can help, let me know. thanks.
     
  2. kolwnmstr

    kolwnmstr Senior Member
    Messages: 223

    Why not call Merchant?
     
  3. pipelayer

    pipelayer Senior Member
    from CT
    Messages: 139

    I did, no help on what may be truck side, because I guess colors varied from a few years to the next. I ended up finding a schematic and splicing them the other day.
     
  4. kolwnmstr

    kolwnmstr Senior Member
    Messages: 223

    Glad to hear it. I just had my NSBU replaced and it cost me a fortune because mechanic found that someone put superglue in the connectors.
     
  5. pipelayer

    pipelayer Senior Member
    from CT
    Messages: 139

    What year is your truck, I've heard of later ones actually being factory glued in, a minute with a hair dryer or a few seconds with a heat gun loosens em right up
     
  6. kolwnmstr

    kolwnmstr Senior Member
    Messages: 223

    Mines an 03' and I have heard of that as well but my guy said it was causing a connection issue. Maybe it was the factory glue and it just hardened too much instead of being soft like an electrical glue should? lol