2005 Duramax LLY - Allison Trans Problem - Diesel Bombers

Chevy/GMC Truck and Duramax Turbo Diesel Forum Discussion of General Topics related to All Chevy and GMC Trucks as well as the Diesels in them

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Old 09-05-2015, 10:41 AM
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Join Date: Sep 2015
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Default 2005 Duramax LLY - Allison Trans Problem

The truck was in a 75hp efi live tune and went into a limp mode and threw code P0746 Pressure Control Solenoid Performance/Stuck Off and it wouldn't shift out of 3rd gear I believe. I cleared the code and it ran fine afterwards with no issues. Do I need to replace pressure control solenoid "A"? Has anyone had this same issue? Any help would be greatly appreciated.
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