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Thread: 2013 silverado 5.3 grade braking adjustment

  1. #1
    New Member
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    Aug 2022
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    Default 2013 silverado 5.3 grade braking adjustment

    I am working on a 2013 silverado 5.3 that is having very aggressive downshifts in grade braking mode/in towing mode after a tune from a local shop. It enters grade braking prematurely and is very aggressive with downshifts while using towing mode. What tables do i need to look at/adjust to help solve this issue? If anyone has a stock file for a 2013 5.3/6l80e could you share that as well? i cannot seem to find a repository for efilive.

  2. #2
    Lifetime Member
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    Mar 2006
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    Default

    These are the first 2013s i found on my laptop. T43 is stock. CD 2013 T43 isnt stock.
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