When accelerating the rpms get stuck and it doesn't shift

Hi, I'm Chad. Welcome to JustAnswer. I'm reviewing your question and I will be posting your reply ASAP. Thank you for your reply and that information as this does help me better understand the situation. I’m sorry to hear you are having this problem. I know this can be frustrating. Please give me one moment to type out some info for you. I’ll be right back! A live optional phone call will be automatically offered by JustAnswer, you can accept or if you decide to decline we can continue with text until you feel the live call would be better suited to you. I will try to help you on this here What is the mileage on it now ? any check [engine](/topics-engine-chevy/) light on ? has the fluid been replaced in transmission? did it start gradually doing this and got worse or suddenly? is also slipping or just not going to the higher gears at the shifting points after 2500 to 3000 rpm ? **Please Let Me Know** **Thank You** **Chad Farhat** **ASE Certified Technician**

163000, check engine light is on, not sure about the fluid i just bought it in nov, and yes gradually getting worse

ok thank you for the info Go to the local parts store and have then scan it and give the fault codes, that will give you any engine fault codes in it only, not transmission, if there is like TPS, Throttle position sensors or MAF sensor code then it could be engine related but if there was not , the code was like for evap issues or HVAC then most likely the transmission fluid needs to be replaced or worst case the transmission clutches are worn out at 163k it could be either they need to run the old fluid thru a paper filer that has a mesh screen at end of it to look for small metal shavings in the fluid, if found then we need a rebuild of trans most of the times, if only low or dark then maybe service will take care of it Please Read Below How to Get Back in touch with Me You Can Always Come Back to this Conversation and Ask Me any Follow up Question you May have on this Issue (You can Copy this Link Page & Paste it in your Browser when Ready and it will Open up our Conversation Again) or there should be a Tab on your Screen to Add me As Your Favorite Expert I'm Online Daily from 7 Am Till Late Eastern Time Zone Thank You?Chad Farhat?ASE Certified Technician