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

Trans shifting REAL hard.

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Old Aug 8, 2007 | 09:08 PM
  #1  
pack24's Avatar
pack24
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From: Racine Wi
Default Trans shifting REAL hard.

Just reinstalled the TPI on my 87. The trans is running to about 5-6k before shifting and then it shifts like a race car. Aren't these CPU controlled? What should I look for?
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Old Aug 8, 2007 | 09:26 PM
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86PACER
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Reset your TV cable.

http://www.tvmadeez.com/article/index.php
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Old Aug 8, 2007 | 09:31 PM
  #3  
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Default I thought I did?? Guess not.

I though I did, but after reading that. I'm not even close. I'll have to try that in the morning. Thanks.
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Old Aug 8, 2007 | 09:59 PM
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Yep, reset the TV cable. The Corvettes tranny was not computer (PCM) controlled until 1994.
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Old Aug 9, 2007 | 04:34 PM
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Default Thanks.

Thanks to all. This feels good now. Like a vette should.
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Old Aug 9, 2007 | 05:41 PM
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Default trans

go back out to the car, and look at the TV cable that is just rearward of the actual cable. Look on the black piece the cable goes into. There will be a wear mark where the black tv cable adjuster was sitting. push the cable back to that point, or pull it out to that point.
That will be where the factory setting used to be.
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