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allison tansmission going in limp mode

  
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allison tansmission going in limp mode

 
jusnik jusnik
New User | Posts: 2 | Joined: 09/09
Posted: 09/06/09
05:10 AM

I have a 2003 Duramax with an allison transmission.  When I am going down the road in 5th gear the transmission will jump out of gear and go into limp mode.  I do pull a load every day but it does it when I am not pulling a load also.  I do have a bully dog programmer on it, but took it off and it still does it.  Can anyone help?  

 

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