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

700R4 gear change problems

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Old Sep 9, 2004 | 05:24 PM
  #1  
Dave Lanfear's Avatar
Dave Lanfear
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Default 700R4 gear change problems

Looking for advise/help on a 700R4 auto gearbox problem.
When problem first started, on cold startup it would not change out of 1st gear when in Drive. However, when warmed up, everything worked OK.
Now it has deteriated and even when warm sometimes (after coming to a halt) needs a change to Reverse then back to Drive to avoid getting stuck in first gear only.
Without a complete strip down or sending to a specialist, any ideas or clues to what the problem might be (& how to fix it) ?
Any feedback would be a great help and much appreciated...........
Thanks in advance.
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Old Sep 9, 2004 | 06:41 PM
  #2  
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Pete K
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A complete teardown is likely. Sorry for the bad news.
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Old Sep 9, 2004 | 07:04 PM
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CFI-EFI
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From: The Top of Utah
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Originally Posted by Dave Lanfear
Without a complete strip down or sending to a specialist, any ideas or clues to what the problem might be (& how to fix it) ?
Are you comfortable inside an automatic? You might tear it down and do a patch job, but if you do you'll probably do it more than once. There are no shortcuts at this stage. You can stick a fork in that 700R4...It's DONE!

RACE ON!!!
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Old Sep 9, 2004 | 07:19 PM
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St. Jude Donor '05
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It be broke. There are some good manuals out there to help you tear it down and fix it. Parts are fairly reasonable. Just make sure you get heavy duty stuff to fix it with, like Kevlar clutches - not stock.
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Old Sep 9, 2004 | 07:43 PM
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comp
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From: eville in
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what for a 700r4?????
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