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4r100 Reverse problem

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Old Oct 24, 2019 | 06:30 PM
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DDJC1000
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4r100 Reverse problem

Just rebuilt my 4r100 went through it slow and carefully but when I got it all back together reverse sometime wont work properly, other times it will grab great. Any at all help would be appreciated thanks in advance.
 
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Old Oct 24, 2019 | 08:38 PM
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Mark Kovalsky
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My guess is that something is wrong with the seal in the reverse clutch.
 
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Old Oct 25, 2019 | 03:20 AM
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cleatus12r
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My guess is the same athough my "street cred" doesn't carry as much weight.

Sorry you will likely have to go all the way back to nearly an empty case to get to it should you choose to just have a look. Since it seems to be intermittent, air checking through the valve body passage may not tell you much.
 
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Old Oct 25, 2019 | 06:07 AM
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That is a shame considering the work that has to be done to get to it.
 
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