IowaTexan
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6L90E (gas truck) 2-1 downshift CLUNK
IowaTexan replied to Epsilon Plus's topic in Troubleshooting, Warranty & Recalls
My 2019 1500 5.3L just started doing this recently. Currently have 65k miles on it and have already had 1 transmission flush done it. Feels like it’s shifting down from 3 to 1 and jolts the whole truck. You can hear a clanking up the truck when I have the windows downs too. Gonna take it to dealership this morning and see what they have to say.
