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

700r4 won't shift

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Old Mar 7, 2004 | 02:41 PM
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cresus
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Racer
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Joined: May 2003
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From: Hermosa Beach, CA
Default 700r4 won't shift

So I have a pickup truck with a 700r4 that seemed fine until suddently it decided it wasn't going to downshift from 3rd gear. So I was driving home and noticed it never shifted while I was accelerating (and of course it drove like crap). So then once I got home the next day I tried to start it and it would shift out of drive (gear shift in N or R still tried to pull forward even though it couldn't move). Any transmission gurus out there who have an idea what this is before I decide to pull the tranny to rebuild it. It seems like a valve body issue to me. The transmission fluid looks OK as it's still reddish and clear but I know that doesn't always mean anything. Thanks.
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