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Old 05-26-2018, 04:32 PM
dinman dinman is offline
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Join Date: Mar 2017
Location: Louisiana
Posts: 206
W123 ignition completely broken, what do?

So I started a thread a while back as to why my w123 would not start, out of nowhere.

After some help from you guys, I jumped the starter off and it fired up.

But I wanted to do some troubleshooting. So I tried jumping the NSS. no go. Wiggled the shifter around. No.

Tumbler was just replaced. So I figured no issues there.

But after turning the key a few times when testing my jump wire on the NSS, I noticed that the key was no longer going that extra bit to actually hit the starter. It was just stuck.

So I removed the tumbler, and proceeded to try and crank the car with a small screwdriver in the ignition.

Voila. It fired the starter off. So to recap- NSS plug was cleaned and reinstalled as usual, tumbler was removed, and starter fires from within the car when using a screwdriver.

Here's the big Problem- when I used the screwdriver to crank it, it "broke through".

What I mean is- the ignition now just spins and spins and spins freely. None of the electronics will turn off and the shut off valve is constantly pulling vacuum.

I disconnected the shut off valve vacuum, and the car is currently running.

I am scared that if I shut the car off with the emergency shut off, and then disconnect the battery, that I have absolutely have no way of turning the electronics back on until I replace the entire ignition assembly.

So that's my question- what do I need to do in order to remove the ignition for replacement, before shutting all electronics down.

I didn't even know the ignition could fail like this. It literally just spinning freely.

Any help would be greatly appreciated. Thanks
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