Neutral safety switch

[Avenger]

I had some issues with my neutal safety switch while at Carlisle and I want some ideas and opinions.. My neutral safety switch won't work maybe every other time but if you put it in drive not running and put it back into park a few times real quick most of the time it will work so I figure the contacts in the column are having issues.. What's the easiest way to fix this.. Or just bypass the neutral safety system because o never start it or would try to start it in anything other than park or neutral anyhow.. I just don't wanna be stuck and have to jump the solenoid or something to get going.. Thank you for your help!
-John

[markz]

The neutral safety switch is in the transmission. You need to do some troubleshooting.

First make sure the linkage is adjusted correctly. Make sure it is fully in park when when shifter is in park.

The neutral wire (I believe for your car) is one brown wire coming from the transmission to the starter relay. Pull the wire off the starter relay and measure the resistance of the wire to ground. Should be zero ohms or something close. If not, put it in neutral and see what you get.

If its not near zero would be a bad wire (unlikely), shifter linkage not properly adjusted, bad switch or problem with transmission. Switch is not hard to change but tranny fluid will leak out. Should be available at local parts store - at least the 3 wire is (newer ones).

Good luck!

[Avenger]

I honestly think it may be the linkage needing to be adjusted.. I do know if it's in say second gear the needle doesn't rest on the 2 mark it rests between 2 and 1.. In D it rests on the actual D.. And in P it rests on it to.. But it does seem a bit off.. And if it is the switch how would you wire the 3 prong one to work with the one wire? I do notice they are quite a bit cheaper than the one wire ones

[67440Dodge]

I have to go with Mark on this, it sounds like the linkage needs to be adjusted. The rapid move to Park is enough to engage the switch, but a normal move to Park isn't.

If you want to test this, you need to do this when the car won't start. Don't touch the gearshift lever, leave it be. First, disconnect the wire from the neutral switch to the starter relay (it's brown and is by itself with a decent sized connector on it). Now, run a wire from the terminal on the relay you just exposed to a known good ground. Try to start the your car. If it starts, shut it off, and disconnect your jumper wire and reconnect the neutral switch wire. If it doesn't start, you know the issue is with the linkage or the wiring/switch.

Next step adjust the linkage. It's not hard to do, just put it in park, then crawl underneath and loosen the locknut on the linkage. Then move the transmission lever all the way to the rear and tighten the locknut. Then go into car and cycle thru the gear locations and try to start it. If it starts from there on out, that was the issue.

If that doesn't work, check the wiring as it goes down the frame rail, ,make sure it's not caught up on anything, and the connection to the switch is nice and solid.

As far as using the 3 wire switch on your car, I don't believe it's possible. The single wire switch just creates a ground path for the starter relay when it's in Park or Neutral, the 3 wire does backup lights and other things as well I believe.

[markz]

If memory serves me correctly, the outer 2 pins on the 3 wire switch are reverse and the middle one is the neutral safety switch.

I honestly don't know if the 2 are interchangeable. I know of course the reverse would not work but don't know about the neutral.

[ws27]

I think the single post NSS is currently made from umobtanium. Also the brown wire should be all by itself, it goes from the SR down the firewall and jumps to the bell housing.

You could also just get under the car, disconnect the linkage and meter the switch there first, Just don't forget to disconnect the wire from the SR before you meter.

Are you good at test metering?

[Avenger]

Yeah I can test it.. I'm thinking it's the linkage.. Just because of how it acts.. I think I will try to adjust it as well

[67440Dodge]

Tony's in Delaware has the single wire for $35 according to his website. Part #2495537

Megaparts has the single wire also, they want $65 for it.

Let us know how the linkage adjustment works..

[thebankerstoy]

Dear self,

Why in the hell did I think that it was a good idea to purchase a 1966 Coronet which most all of the aftermarket parts suppliers absolutely ignore rather than purchasing a Mopar that all of them absolutely love and offer parts for? Blonde

Richard

[67r/t4speeder]

Because they look cool as hell and drive killer too.