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Ignition key not inserting

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Old Mar 21, 2026 | 02:10 PM
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Default Ignition key not inserting

Hello all,
Just wondering if anyone can help: I had an issue with the VATS tab on my key, and I cleaned the tab and also took a hand rocket blower and blew into the ignition lock cylinder. Some dust shot out from around the lock cylinder. But, now the key will not insert completely into the lock cylinder. It falls short about 1/8 inch, and I am unable to turn the cylinder to start the car. The shifter is in reverse, and the steering wheel is in the lock position. I tried some contact cleaner into the lock cylinder as well as a vacuum, but nothing worked.
Has anyone experienced something like this?
Thanks!
Salvatore
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Old Mar 21, 2026 | 03:31 PM
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If your car is an '86 with an original cylinder your situation is to be expected likely. All '86 and early '87 cars had a TSB that involved replacing lock cylinder and keys. The blade of the key on the newer is longer and the keyway I believe was narrower. I don't recall blade length, but lock cylinder replacement is likely your fix. I recall the newer blade length would work in the older lock cylinder but older not in the new. Have you by-passed VATS with a resistor or other means?

Take your key and match to any new resistance key in someone's inventory. Is yours the same or maybe shorter?
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Old Mar 21, 2026 | 03:37 PM
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Thank you very much for the reply! What's puzzling is the key worked one minute, and then after blowing out the cylinder, it did not work (or go into the cylinder fully).
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Old Mar 21, 2026 | 03:50 PM
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Originally Posted by RedRobin86
Thank you very much for the reply! What's puzzling is the key worked one minute, and then after blowing out the cylinder, it did not work (or go into the cylinder fully).
Your 'rocket blower' seems to have created your issue so maybe you rinse and repeat. At this point you've likely nothing to lose. Do you have a spare key? You didn't answer the question: Is VATS by-passed?
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Old Mar 21, 2026 | 04:18 PM
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Yes, I tried the rocket blower again (it's just used for camera sensors, so it's not overpowering). I can try that again. I have not bypassed the VATS.
Thanks again!
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Old Mar 21, 2026 | 04:29 PM
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Originally Posted by RedRobin86
Yes, I tried the rocket blower again (it's just used for camera sensors, so it's not overpowering). I can try that again. I have not bypassed the VATS.
Thanks again!
If you had a pic tool assortment you might try inserting and see that the tumblers/pins are depressing for the lock cylinder when key is inserted. A blank key 'uncut' might accomplish exercising the cylinder. I've never tried but nothing to lose. Any single blade VATS key would have the correct keyway.

*** If you found a B62 Ilco Key with 'no chip' it would be cheap. A B62-P is a 'chipped' blank and there would be choices.
The final 1/8' of key blank activates a nylon tab on the cylinder case. You might wiggle the key cylinder bezel a bit while depressing just a bit more forcefully.

Last edited by WVZR-1; Mar 21, 2026 at 05:06 PM.
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Old Mar 21, 2026 | 09:41 PM
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Thank you very much. I will try one of these out.
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Old Mar 22, 2026 | 01:31 PM
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Keep us posted, I'm curious on the repair, when I owned 89, I replaced the ignitions cause of VATS problems?
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Old Apr 4, 2026 | 02:50 PM
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@1bdvet @WVZR-1
I bought the B62-P blank of the correct resistance, and with more pressure, I was able to push the blank fully into the ignition. The switch turns as it should, and it starts up. I'll get the blank cut, and I will have an extra key, which is good anyway.

Thanks again @WVZR-1 for the tips!
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Old Apr 4, 2026 | 08:59 PM
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Originally Posted by RedRobin86
@1bdvet @WVZR-1
I bought the B62-P blank of the correct resistance, and with more pressure, I was able to push the blank fully into the ignition. The switch turns as it should, and it starts up. I'll get the blank cut, and I will have an extra key, which is good anyway.

Thanks again @WVZR-1 for the tips!
Good to see you had success using an uncut correct key. I actually expected that to work as an uncut key exercise all the tumblers/pins to an extreme. I've never been a believer in lock cylinder lubrication, but it might be something to consider. had you ever done any lubrication of the cylinder?
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Old Apr 5, 2026 | 03:31 PM
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I did inject some contact cleaner into the cylinder a week or so ago but had only tried with the normal cut key.
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