C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

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Old Aug 19, 2003 | 02:48 PM
  #1  
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slim1
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From: monroe mi
Default bad key

Hello, I started haveing trouble with my 88 starting today. After starting it a few times through the day suddenly, nothing. Then, I wiggled the key and pushed in while turning the key, it started right away like everything was fine. I tried it a few times. Just turning the key nothing would happen. Turning the and pushing the key at the same time and it started right up. Unfortunatly, now no matter how I try the motor will not crank. I think it is the anti-theft system, my key may be worn out. How can I prove what the problem is, and how do I fix it.

slim
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Old Aug 19, 2003 | 03:21 PM
  #2  
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jfb
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From: Cincinnati, Oh USA
Default Re: bad key (slim1)

There are contacts in the tumbler that make connection to the pellet in your ignition key so VATS can determine if the correct key is being used. When the contacts wear, you start experiencing intermittent non-starts. Try your spare ign key as its pellet contacts aren't as worn as your everyday key. Eventually you will have to have the ign tumber replaced. Maybe soon.
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Old Aug 19, 2003 | 03:51 PM
  #3  
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slim1
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From: monroe mi
Default Re: bad key (slim1)

Thanks for the reply. Regarding my spare key, the chip has fallen off and is gone forever. Anyhow, it is the tumbler that is bad and not the key?

Thanks again
slim
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Old Aug 19, 2003 | 05:03 PM
  #4  
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JCAIRE2
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From: High Plains Drifter Fayetteville, AR
Default Re: bad key (slim1)

Could be the key, but sounds like the tumbler is worn. Clean off the pellet on the key and see if that helps.
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Old Aug 19, 2003 | 05:14 PM
  #5  
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slim1
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From: monroe mi
Default Re: bad key (JCAIRE2)

I cleaned the key and there is no improvement. How difficult is it to change the tumbler. Thanks again.

slim
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Old Aug 19, 2003 | 06:07 PM
  #6  
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JCAIRE2
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From: High Plains Drifter Fayetteville, AR
Default Re: bad key (slim1)

I have no idea about the tumbler. Maybe you could go get another key cut and see if that helps. It's gotta be cheaper than replacing the tumbler.
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