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Re: Motor home with C9 and CX28 cat trany. Lockup Issues?
Posted to HD/Fleet Forum on 7/11/2018 1 Reply

Roger, Can you duplicate the rpm change by applying the service brake slightly while accelerating?

My feeling is that the lockup is being commanded off. Where that command comes from? I don't know.

Short to power or ground, A relay or IC board being backfe... Login to read more.

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