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  1. #1
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    Default Cleaning Your Neutral Safety Switch

    This is my first write up, plus my first time cleaning a NSS, but here goes anyways.

    Tools needed are a 12mm socket, flat head screw driver, electrical cleaner, dielectric grease, and very fine sand paper ( I used 200 grit )

    Locate your NSS, on my 93 it was on the left side of my tranny at the front.
    This is the mess that greeted me when i located it



    First thing I did was to unplug the sensor from in the engine compartment and clip the two zip ties holding the NSS wires to other wires, I found the plug on the left, at the back of my valve cover, by the dip stick tube.



    Next I crawled under and attacked the NSS

    I used the 12mm socket to remove the top bolt, then I bent back the tabs on the lock washer behind the lower big nut. I found that the big nut was only finger tight, but this is how it should be (I was told). after I removed the big nut and lock washer, I found there to be a rubber gasket under the lock washer, don't lose this gasket, it's hard to see when everything is dirty, but it's there. After I had a this part done, I replaced the large nut a couple turns back on and used my flat head screw driver as leverage on the big nut to help pull the NSS off straight, do not twist off the NSS as it can damage it.

    Once off, I had one very dirty NSS to deal with

    In this picture, there is the NSS, the top bolt, big nut, lock washer, and rubber gasket.



    Now the fun part

    Remove the six screws holding the part together, but be careful when you seperate the part, as the arm inside does have two spring loaded brass contacts that might want to take a leap for freedom, and they would be almost impossible to find again. After open here are some pics of the inside goodies.











    After tearing apart the inside I soaked all the pieces in electrical cleaner and then let them dry completely. I then used the 220 sand paper and sanded all the contacts, including the two brass ones from the arm.

    Before



    After



    Oh...so pretty now

    So now that everything is all clean and pretty, I used the dielectric grease and gave everything a good smear with it.



    Now, put all the pieces back in, put the two halves back on, and replace the six screws.



    All thats left is to reinstall the NSS back on your rig the way you took it off and pug her back in.





    Make sure your reverse lights are working, and that your jeep will only start in park or neutral, and wa la..................your good to go

  2. #2
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    Nice job Mel!!

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    Excellent write-up!!!
    Hey bubba get your hand off my ass,

    Some days it is just not worth it to gnaw through the leather restraints.

    R.I.P. Brian 96_XJ Perrine 1990-2011

  4. #4
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    You are a dirty girl after all......
    www.Detoursusa.com........

    CHECK US OUT ON FACEBOOK:
    Detours Off Road Hardware

  5. #5
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    Icon11

    Quote Originally Posted by Spanky "D" View Post
    You are a dirty girl after all......

    The very best kind!!!!!!!!!!!!!!!!

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    WOW, Spanky got thanked for calling Mel a dirty girl!! I like Mel more and more every time I log on!! LOL!!

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    Yeah she's a hoot.

  8. #8
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  9. #9
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    nice job. i needed to do this on my last heep but never got the chance to do it (sold it)
    i was told that you will have a hard time getting them off that you will probably brake them getting them off.

    did it come off pretty eaisy then?
    01, Tera Flex 6" long arm kit, jks quick disco's,jks bar pin eliminators, Fox 2.0 shocks I won for 5 bucks, Tom woods Sye with rear drive shaft, Tera flex rear disc brakes, custom front bumper, customer rear bumper, rage roof rack. H4 head lights, k&n intake and cone, black steelies with 285x75x16 retreads, metal gas skid. Finally I have a nice jeep no more pos.
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  10. #10
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    Quote Originally Posted by alwaysxj View Post
    nice job. i needed to do this on my last heep but never got the chance to do it (sold it)
    i was told that you will have a hard time getting them off that you will probably brake them getting them off.

    did it come off pretty eaisy then?
    Surprisingly, it was pretty easy to get off. I was was just real careful in making sure I pulled it off straight and not twist it at all. The worst part of the whole thing was getting to the 2 zip ties above it and getting them cut, after that it went very smooth. It was well worth the time and effort.

  11. #11
    NickM Guest

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    Thanks, Melissa. I went ahead and did this myself yesterday, and now I have reverse lights!
    Yay!

    Nick

  12. #12
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    I have pulled one off of one of my spare transmissions and taking it apart and cleaning it for a ready to go spare is Mondays project Mel. Thanks for your write-up. It is as good as I have ever seen on the NSS subject.
    Hey bubba get your hand off my ass,

    Some days it is just not worth it to gnaw through the leather restraints.

    R.I.P. Brian 96_XJ Perrine 1990-2011

  13. #13
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    Quote Originally Posted by NickM View Post
    Thanks, Melissa. I went ahead and did this myself yesterday, and now I have reverse lights!
    Yay!

    Nick
    That was the best part about it for me, having reverse lights again

    I didn't even care that I had to clean it in the first place because my Jeep would not start, it was the reverse lights that made me the happiest

  14. #14
    Voldemort Guest

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    Quote Originally Posted by Melissa View Post
    That was the best part about it for me, having reverse lights again

    I didn't even care that I had to clean it in the first place because my Jeep would not start, it was the reverse lights that made me the happiest
    SO your xj did not start at all and after the cleaning it started fine?

  15. #15
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    Excellent write-up. I saved this for the future.

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