Cody209

10 speed

Dealer just called me and told me it needs a torque converter and valve body. They stated they have no problem getting the valve body, but the torque converter might take some time.

My 21 Silverado is in the shop for a slight hesitation/stumble/jerk at low speed low rpm. No check engine light and every is update on software. Went on a test drive with two techs today, one driving one watching the computer. According to them everything on the computer was good but both noticed and felt the issue. My question is does this sound like a valve body issue and will GM authorize replacement with no check engine light? They said they are pulling the data from the computer and sending to GM. Service manager mentioned TCC slip and possibly replacement fluid, thought that TSB was only for the 8 speed though… any info helps

You have the TSB number? Thanks