SlateGrey1500

@pokismoki Oh I see, burn outs and stuff aren't my goal, I was only power braking because I has seen mention of it in troubleshooting the TCC. Thank you though! @CamGTP Crap, oh well haha thank you though!

@pokismoki Thank you for the tips!! I have installed a new MAF, cleaned the TB and did the throttle position relearn procedure for a safe measure. I will try those driving tests tonight or possibly tomorrow too! I had no idea about the torque management killing power on a power brake like that, makes sense! As for the thermostat delete, could you share a bit of info with me on what difference that makes? Thank you! Edit: Nevermind, I looked up a delete kit and watched the info video. Just ordered the kit!

I completely forgot to mention that too! So when I nail it going down the road, the RPMs do shoot up like they should.. but the actual power to the ground just isn’t there like you would expect at WOT.

Hey there! I figured I would come to one of the best places for some advice and answers. I recently bought a 2015 Silverado 1500 6 speed, it has a newly rebuilt transmission with new TC, like 5k miles on them. The Issue: Ever since driving it I notice a strange lack in acceleration or power in general.. like the transmission is just constantly slipping or something. I tried the power braking test and here is a video snippet of it: https://streamable.com/mrtx4e as you’ll see, while on the brakes and I floor the gas the truck barely builds to over 1k rpm... like the there absolutely no power to do anything. I thought about going to a tuner and having them tune out the TCC engagement in 1st-4th gear but I’d like to know first this isn’t anything mechanical wrong. Any suggestions? Thank you!!