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2008 Allison repair


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2008 Chevy diesel/Allison 4x4, 170k.   Trans in limp mode.   Code p0762 solenoid 3 stuck.  A little testing and a little guessing.......pulled valve body out and apart.  Found stuck valves.   Picked them out, used 1200 sand paper to dress the valve and bores.   Shifts good now.  Customer knows the metal particles are coming from somewhere and this could be a temp repair, but he's happy now.

It's a pretty service friendly trans, IMO.

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