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Neutral Safety Swith Voltage~ won't crank

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Old Jun 12, 2010 | 03:27 PM
  #1  
Msilvernale's Avatar
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From: America
Car: 1984 Camaro Z28
Engine: 5.0 HO
Transmission: 700R4
Neutral Safety Swith Voltage~ won't crank

Hello again,

I've been really working on this car trying to get it to turn over and I just can't get there. I jumped the NSS as suggested by others and it makes no difference. When I turn the key to run I hear a rapid clicking from under the car somewhere and the check lights and choke lights come on but when I turn the key to start I get nothing at all, no click of the solenoid, no starter bump, nothing. The clicking stops after about 30 seconds.

The car has a new mini starter, new battery, new ignition switch. I checked the voltage at the NSS and find no power to the yellow, purple, or green wires with the ignition turned on- if I understand what I've read so far there should be 12 volts on the green and I think that's where my problem is.

I also saw posts about a starter enable relay behind the kick panel, I pulled all that out and there are no relays there- then I saw another post that says the 84's don't have one so I'm confused as to where to look next.

The car started fine 2x's before I bought it and died after I parked it at home the first time I drove it and has been dead since. I thought it was the starter but it's not.

I could really use an experts guidance here, I've got a ton of money tied up in a car I can't drive and can't sell without it running or I'm going to lose even more.

Any advice other than scrapping it?
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Old Jun 12, 2010 | 05:54 PM
  #2  
camaronewbie's Avatar
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Joined: Sep 2002
Posts: 9,192
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From: Cary, North Carolina
Car: 1992 RS
Engine: Carbed 350
Transmission: 700R4
Axle/Gears: 3.42 posi
Re: Neutral Safety Swith Voltage~ won't crank

Starter has one terminal with a single purple wire - take a chunk of decent guage wire, touch this terminal on the starter, and bump the pos battery term - starter should crank - that elimibates the starter.

Then, same thing at the console - attach to pos battery terminal, and bump the purple wire at the NSS - again starter should start - eliminates an issue in the purple wire between NSS and starter.

Then, bump the YELLOW wire with the pos battery wire, in park, starter should start - eliminates the NSS.

BUT - if you are not getting 12v on the yellow wire at the NSS when key is turned to START position, then the yellow wire is the issue. It should trace back to the ignition switch in the steering column (NOT the key switch, but a switch lower in the column. As I understand it, when the key is turned, 12v comes from the ignition switch on a yellow wire, that runs to the NSS which transfers to purple wire and out to starter.

According to the diags, 1984 didn't have starter enable relay. Here's wire diags of all 3rd gens: http://www.austinthirdgen.org/index.php?pid=19
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Old Jul 8, 2010 | 08:32 PM
  #3  
Msilvernale's Avatar
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Joined: Jan 2010
Posts: 13
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From: America
Car: 1984 Camaro Z28
Engine: 5.0 HO
Transmission: 700R4
Re: Neutral Safety Swith Voltage~ won't crank

Well sometimes it takes weeks to realize you screwed something up................. when I put in the new mini starter I wired the ignition wire to the terminal for the coil on older models, after replacing the entire ignition system and cables I finally had the bright idea to go back under it and check every last detail.

Argh.
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