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Showing results for tags 'custom tune'.
So I finally gave up on waiting for a fix for the 8 speed and its many mis-behaviors and had my truck tuned by a local custom tuner that has been working with LS/LT motors and transmission tuning for many years. He plugged in his laptop and rode with me for over two hours. The truck is a new animal. Great at shifting and the engine acts like the beast it should be. My truck is a 2015, 6.2L 8 Speed, 23,000 miles. It has always had the low speed clunk and recently developed the shudder, especially in 8th at steady state highway speeds. Here is some of what was done.
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I bought this truck in August of 2014 from a dealer in Milwaukee. It had 8k miles and the previous owner had custom ordered it used it for 6 months then turned around and traded it in for same thing but 2500 with a Duramax. This is its journey.... The truck also did really impressive burnouts for being completely stock, this one was into 3rd gear A few months after I bought it I started with upgrades. First was a rolling tonneau cover. Didn’t love it but it worked. I wanted more power from it and chose a set of Doug Thorley tri-y headers and catless y pipe. Had