Allison tranny problem
Our 05 GMC 3500 diesel has developed a tranny problem- The transmission will downshift and lock up in the gear the tranny selects- I must stop the vehicle and shut the engine off to get the tranny to operate properly- Of course , the "check engine " light comes on and stays on- It has been "repaired" 3 times so far-Any one out there who can shed some light on a solution? THANX in advance for your opinions- DD
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Fulltiming since July 1, 1999 currently with a 2005 GMC Sierra 3500 cc drw towing a 2007 Jayco Eagle 341RLQS
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