BO TIE 1 started following Shake or Vibration Issues, 2018 3500hd dead on takeoff, 2014-18 Chevy Silverado & GMC Sierra BILSTEIN 6112s IN STOCK! Limited Inventory and and 1 other
Try disconnecting the battery for a while. It may reset.
I just started having this same issue on my 2018 5.3. I put in some fuel line cleaner, no help. Yesterday filled up with some 89 octane to see if that helps. Gonna give it some time to run thru. Hoping it's not transmission related. Seems to have some similarities to the torque converter issues I've read about. I've checked to see if there are any codes being thrown but not seeing anything. Just hate to take it in and have them tell me they couldn't replicate the issue. Post up if you get this sorted out.
Did you try just disconnecting the battery for a little bit just to reset everything? Just a thought.
I would try getting a handheld tuner and changing the tire size. I have a diablo sport intune that allows you to change the tire size and many other parameters.
Looks like something got shorted out from the rain. Not sure if the warranty would cover that since you had them apart. Try taking it in and see what they say. Good luck. Let us know what happens.
I had a 2014 shaker that I traded for my 2018 that is smooth as glass. Best advice is get it on the highway and get it up to 70 to 80. But that doesn't guarantee that it won't develop later. Keeping my fingers crossed with my 2018. So far so good. Good luck to you.
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