Allison 6sp: Leak

DuramaxTireSmoker

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Jun 8, 2010
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SW Florida
Thanks for responding, so what does it need, an O-ring or something?

I also am getting the codes P0847 P0848 P0877 P0700 U0101 and when I put the truck it drive it will sometimes display "Range Shift Inhibited" so I'm guessing ill need to pull the pan anyway.

this truck is as stock as can be, no transgo or aftermarket converter
 

Mike L.

Got Sheep?
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Aug 12, 2006
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Fullerton CA
Thanks for responding, so what does it need, an O-ring or something?

I also am getting the codes P0847 P0848 P0877 P0700 U0101 and when I put the truck it drive it will sometimes display "Range Shift Inhibited" so I'm guessing ill need to pull the pan anyway.

this truck is as stock as can be, no transgo or aftermarket converter

The Allison linkage seal is the same as a turbo 350/400. Your codes might indiacate a bad internal harness or NSBU. U0101 is a communication problem at the TCM.