99 XJ wont start..NSS? - JeepForum.com
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Unread 09-30-2013, 08:38 PM   #1
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1999 XJ Cherokee 
Join Date: Apr 2013
Posts: 2
99 XJ wont start..NSS?

When I bought this jeep there was a box in the back wired up for a dual battery. So when I recently wired up my brand new quadratec winch I put my old battery back there. Everything seemed to be good drove the jeep all day. Next day I was leaving an interview and just wouldn't start. Starter would click. Had a good deal on a starter so just replaced it anyway and same problem. Tried jumping the power to the switch on the starter and wouldn't turn. Read up on this neutral safety switch that seems to be a common problem still wont start after playing with the shifter and trying to start from neutral (fyi my reverse lights work). So I figured on doing the cleaning out of the nss only to find that the nut with the lock washer and rubber gasket were missing. Im havin trouble getting it off without the nut to use that trick. but wondering if those missing parts could have been the problem

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Unread 09-30-2013, 08:55 PM   #2
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CJ7-Tim's Avatar
2000 XJ Cherokee 
Join Date: Apr 2002
Location: out in the garage - Minneapolis, Minnesota
Posts: 24,068
If nothing happens when you turn the key, suspect the NSS.

If you get clicking or any other almost starting behaviors, suspect battery/alternator issues or battery wire/starter wire issues.

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Unread 10-01-2013, 05:57 AM   #3
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1995 XJ Cherokee 
Join Date: Apr 2009
Location: Los Angeles / SFV, California
Posts: 3,258
Just an FYI, there is (or should be!) a BOLT that holds the NSS in the proper position. If the switch would not come off it's possible you forgot to remove that bolt (?).
Also, the shaft that the switch rides on may have ridges that make switch not want to easily slide off. Prying the fingers of the switch open may help...
But as Tim pointed out, if you are getting a "click", and your backup lights work, your NSS is probably OK...
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Unread 10-01-2013, 12:10 PM   #4
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1999 XJ Cherokee 
Join Date: Apr 2013
Posts: 2
last week it would just click now it doesn't. And yes I did remove the mounting bolt. I was talking abut the nut that has the lock washer underneath it was missing.
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Unread 10-02-2013, 07:29 AM   #5
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1984 CJ7 
Join Date: Mar 2009
Location: nj
Posts: 2,386
It really sounds like you have a draw on the battery. 1st thing I would do is disconnect the winch and the 2nd battery. Then charge the main battery or replace if needed. Once thats done see how it holds a charge for a few days. If its good then look at the winch wireing or the 2nd battery wireing. There may be a reason thr PO did not have the 2nd battery installed.
Also I have heard that when using dual batteries that the batteries need to be the same. This also could be the issue but not really sure. But again I would start with removing what you added and go from there.
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neutral safety switch , start problems , xj

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