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

Time for a rebuild?

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Old Jun 24, 2009 | 04:32 PM
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Default Time for a rebuild?

My tranny in the 85 c4 ( auto) when coasting from anything above 50 or up, it coast downshifts when I let up on the accelerator. after it drops to around 30 it begins coasting again, when it is coast downshifting if i touch the brake or the gas it will also release this coast downshift Does this mean the tranny is shot?
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Old Jul 9, 2009 | 08:30 PM
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rte203
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I guess no one ever had this problem, Just my luck, Im the very first...
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Old Jul 9, 2009 | 08:50 PM
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Sorry i can't help you but heres a bump for ya.
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Old Jul 9, 2009 | 11:41 PM
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The question is what is coast downshift?


Do you mean when you touch the brake the rpm drops?
I believe thats the toque converter disengaging
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Old Jul 10, 2009 | 06:50 AM
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Originally Posted by The Green Hornet
Sorry i can't help you but heres a bump for ya.
Thanks
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