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Re: 4L60-E 3-4 and band failure, Codes 58 & 81. ECM failure ?
Posted to Transmission Forum on 1/29/2000

Thanks, Mike.

How do I check the 3rd accum capsule? I read some advise to plug it and so I did. Did I screw something up ?

Drilled TCC valve plug,sealed boost sleeve to pump housing enlarging feed hole. Boost valve still leaking inside, however,line reache... Login to read more.