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Unread 08-06-2013, 01:52 PM   #16
Rproject
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I'm with remmons on this one. I know, scary, but hey, whatever.

When you turn your key to the OFF position, it pulls up a rack (in many older GM columns). The rack pulls the rod up. The rod disconnects the circuit. At the same time, there is a pin on the side of the cylinder that engages the white connector with the two brass tangs. That is your "key in ignition" buzzer warning system. It also extends that round pin at the very top of the steering column. This pin fits into one of the slots on the lock plate preventing the steering wheel from turning when the key is out of the ignition. This lock pin is also what creates what is commonly referred to as "steering wheel wrap up". If the steering wheel is turned with the key removed, the pin can bind on one of the notches and not allow the key to freely turn. Pulling the wheel to one side or the other removes the bind and allows the key to turn.

Now are you starting to see why having the proper cylinder installed in the column, and seeing what your actual column looks like, is very important to help diagnose a potential cylinder or switch issue? Lots of things come together in a very small area and all play off each other.

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Unread 08-06-2013, 02:12 PM   #17
remmons
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Quote:
Originally Posted by Rproject View Post
Now are you starting to see why having the proper cylinder installed in the column, and seeing what your actual column looks like, is very important to help diagnose a potential cylinder or switch issue? Lots of things come together in a very small area and all play off each other.
X2. The proper pic and description will aid in the proper path to follow on a successful repair solution.

At either rate, I would recommend that you take the advice that we have offered and see if any of this works for you, I am sure that even with the incorrect photos/descriptions we can still generally diagnose a problem.

It sounds like that there are a few of us GM guys on here as well.
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Unread 08-06-2013, 02:17 PM   #18
Rproject
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Quote:
Originally Posted by remmons View Post

It sounds like that there are a few of us GM guys on here as well.

I was a retail locksmith for almost 15 years. I've had my hands inside more steering columns and door panels than I care to remember.
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Unread 08-06-2013, 02:23 PM   #19
squarebeams
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Thanks remmons! I removed the cylinder with it running and it did indeed shut off with the screwdriver. It now seems to be an issue with the cast gear that the cylinder turns. It seems to able to skip teeth while turning, allowing it to be out of sync with the cylinder.
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Unread 08-06-2013, 02:29 PM   #20
squarebeams
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I think I have a bad rack. All kidding aside
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Unread 08-06-2013, 02:34 PM   #21
Rproject
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AHA! NOW we're getting somewhere.

Since it will work correctly with the cylinder out, but not with it in, it's really pointing to either a broken cylinder or the incorrect cylinder being installed by the PO. The easiest thing to do is to get the correct cylinder and drop it in. If the problem persists, then the problem is with the teeth on the rack, or there is a stress fracture in the rack that is allowing the rack to separate under load and skip. In either situation, the rack will need to be replaced.


This is the cylinder for an early YJ (note the GM style key): http://www.jeep4x4center.com/ignitio...-83501971.html

This is the cylinder a later YJ's (note the Chrysler style key): http://www.jeep4x4center.com/ignitio...-4723289k.html

You want the former cylinder, not the latter.
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Unread 08-06-2013, 02:35 PM   #22
remmons
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Quote:
Originally Posted by Rproject View Post
I was a retail locksmith for almost 15 years. I've had my hands inside more steering columns and door panels than I care to remember.
LOL. Understood.

Quote:
Originally Posted by squarebeams View Post
Thanks remmons! I removed the cylinder with it running and it did indeed shut off with the screwdriver. It now seems to be an issue with the cast gear that the cylinder turns. It seems to able to skip teeth while turning, allowing it to be out of sync with the cylinder.
Quote:
Originally Posted by squarebeams View Post
I think I have a bad rack. All kidding aside
Glad to hear that you have found the culprit! Now to locate the parts and fix it. I have seen these parts available through several online suppliers. Good luck!
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Unread 08-06-2013, 03:01 PM   #23
squarebeams
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Thanks guys. The column is original and the cylinder is correct. It operates with the screwdriver but not correctly, thus pointing to the rack. I guss I will be going even deeper into the column. I will post the outcome. Thanks again!
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Unread 08-06-2013, 03:06 PM   #24
Rproject
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Quote:
Originally Posted by squarebeams View Post
It operates with the screwdriver but not correctly, thus pointing to the rack.

Look here: http://www.4wd.com/hardparts/HP_Part...spx?hpDID=241#
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