Ignition Key Lock Cylinder

[g1smith]

Every once in a while, I can't trun the key on my '99 JGD to start it!

The transmission is in park, the steering wheel is not lockedl, I can insert and remove the key.

I've taken it apart and it still can't be turned untill I disassemble it , clean it and tap on it a few times. It works for a few weeks and then, it's back, it can't be turned . . . the wife's afraid of the darn thing!

I've changed out the Ignition Key Lock Cylinder on a few cars in the past, the most recent one a '95 mustang in which I was able to move the PINS over to the new lock cylinder so that we could continue using the same key.
(With the JGC's security system, new coded keys are $60, coding & programming $60, parts $100, labor, sales pitch . . . etc. etc. $250 - $400.

Autozone doesn't cary the Key Lock Cylinder but internet searches give the part number as 5003843K about $42. Can a 'Back Yard Mechanic' move the PINS over to the new lock cylinder on the '99 JGC so that the same key can be used or is this Rocket Science best left to the stealership?

[adr410]

I have the same issue and would like any advise or help on what to do next.

[Bob D.]

The problem is a failing lock cylinder barrel.
Eventually the key will get stuck or the ignition won't turn it at all.
I would recommend taking it to a locksmith, they should be able to re-key the tumblers on a new barrel to the existing keys.
It's a good idea to fix it before it stops working permanently; it will likely leave you stranded and there is more labor involved if it needs to be fixed after it locks up for good.
It's not an uncommon problem with earlier, 1999 to 2001 JGC models, I've heard the replacement barrels have been redesigned.

Chrysler recommends lubing the lock cylinder 2 times a year.

[g1smith]

Done!
There were brass colored metal shavings all over inside of the thing. Lube it twice a year . . . seems a little extreme . . . it has lasted 6 years with no extra lube!
Anyways . . . Yes . . . the pins can be moved over to the new $42 lock.
With the lock removed - how - remove battery cables - turn key to run - press the release button and remove the key-cylinder. To relocate the pins - remove the thing that locks the steering wheel in place . . . how . . . two brass colored retainers about the thickness of a soup can . . . caution . . . this is watch repair . . . the pins pull out the top . . . move them over to the new cylinder one at a time.

[bringselpup]

Nice going!

Chrysler recommends lubing the lock cylinder 2 times a year.

I'm guessing that's the Chrysler approach to dealing with a poor quality part. Get the hoopleheads to lube it twice a year and maybe it will last until the vehicle is out of warranty.

[Bob D.]

Originally Posted by g1smith

There were brass colored metal shavings all over inside of the thing. Lube it twice a year . . . seems a little extreme . . .

That's why they tell you to lube it twice a year...