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Re: 4f27e over 500 psi when cold. is there collateral damage
Posted to Transmission Forum on 3/25/2019 2 Replies

Thanks. Do you think anything else was damaged? I remember early 4L80's cracking cases & drums when the reverse boost valve would stick. After it warms up, it shifts fine, except for a harsh initial engagement into drive from park. Login to read more.

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