1994 ZJ Larado won't start - JeepForum.com

 
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post #1 of 11 Old 06-26-2013, 03:15 PM Thread Starter
rtrainer
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1994 ZJ Larado won't start

When I turn the key over, the dash lights light up but the starter does not crank the engine. Nothing. Interior lights, radio, locks all work.

Here are the things I tried:

1. Locked and unlocked using the key in all 3 doors.
2. Tried to start it in neutral.
3. Tried starting it while putting pressure on the transmission lever while it was in Park.
4. Disconnected the battery cables and cleaned the connectors and the battery posts. When I did this and tried to start it, the lights flashed like they should due to the immobilizer. Used the key in the tailgate and successfully turned off the immobilizer.
5. Removed and ohmed out the ignition switch.

So it sounds like it is down to the NSS or the starter solenoid.

I looked into the NSS and when I search at Advanced Auto Parts for a replacement, I get a small unit that has 3 terminals and looks more like a plug that what I see here, http://www.bc4x4.com/tech/2010/jeep-...ty-switch-nss/

Here is what I found at Advanced, http://shop.advanceautoparts.com/web...+safety+switch

I have not tried to connect a wire from the battery directly to the start solenoid to see it it turns over, but I believe it will as my daughter had been driving on and off all day.

Any ideas?

Thanks...rob

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post #2 of 11 Old 06-26-2013, 03:50 PM
Rook87
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Twice this week I came out to my jeep and it was doing the exact thing yours is doing. Lights, radio, everything was fine but just wouldn't even try to turn over. A quick jump start and it would fire right up. It's been taking what seems like a little longer then normal to crank over so I went ahead and replaced the Starter for now.
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post #3 of 11 Old 06-26-2013, 03:56 PM
WhiteOut
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Put it in neutral and try to start it. If it doesn't then replace the starter.
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post #4 of 11 Old 06-26-2013, 04:23 PM Thread Starter
rtrainer
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Quote:
Originally Posted by Rook87 View Post
Twice this week I came out to my jeep and it was doing the exact thing yours is doing. Lights, radio, everything was fine but just wouldn't even try to turn over. A quick jump start and it would fire right up. It's been taking what seems like a little longer then normal to crank over so I went ahead and replaced the Starter for now.
Tried jumping it..did not work.
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post #5 of 11 Old 06-26-2013, 06:06 PM
Rook87
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Quote:
Originally Posted by WhiteOut View Post
Put it in neutral and try to start it. If it doesn't then replace the starter.
I tried this aswell with no luck so thanks for making me feel better about replacing the starter first.
But ya, replace your starter. My girls jetta also with same symptoms but couldn't be jumped like yours was still the starter too.. Good luck man
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post #6 of 11 Old 06-26-2013, 08:11 PM Thread Starter
rtrainer
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After some testing tonight I think it is the NSS switch. I have come to this conclusion because I get 12v on contact #86 when the ignition switch is in the Start position, but I do not get continuity to ground when the shifter is in Park or Neutral. my problem now is that I cannot figure out where the NSS is on the transmission. I have a 42RE which has the one that looks like a plug with 3 contacts.
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post #7 of 11 Old 06-26-2013, 08:20 PM
xcaliber81
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try jumping the starter if it starts then the starter is gone.
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post #8 of 11 Old 06-26-2013, 08:21 PM
xcaliber81
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had the same problem a few months back ended up replacing the starter and battery, but my problem only existed in cold weather
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post #9 of 11 Old 06-26-2013, 11:19 PM
Oldfrog
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Quote:
Originally Posted by xcaliber81 View Post
try jumping the starter if it starts then the starter is gone.
^^ This.. ( or hit the starter with a hammer) ....and of course, the obvious question of :

How old is the battery? Jeeps HATE weak batteries.

2007 5.7 Hemi, Ltd. QD II -
1997 ZJ, 4,0 select trac, Up country, track lok.
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post #10 of 11 Old 06-28-2013, 07:16 AM
Rook87
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He's not coming back to say if it's fixed or not huh..
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post #11 of 11 Old 06-29-2013, 10:30 AM Thread Starter
rtrainer
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Well I have and have not fixed it. Went and bought a new NSS but did some more testing on the existing one and found that it was working. Wasn't keen on trying to jump the starter so I hit it with a hammer. Boom, engine starts. So I will replace the starter in the next couple of days.
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