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Re: Mack RD688 Allison 4500 no shift into gear
Posted to HD/Fleet Forum on 11/23/2012

[WTECIII Speed sensor wiring]

Jason,

Link to retrieving codes using the Allison shift selector. "[...] =publications/pubs&FileToGet=[...]".

Flashing on the gear selector indicates that there is a shift inhibit present, ie the ECU is preventing the tr... Login to read more.

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