Jessiebandz

Hey man thanks for the input! Do you think if I get a 2018 ecm and tcm it would be able to get programmed? Thank you

Hey so I’m having some issues on a recent job I had done . I bought a new reman 2018 Denali 8l90 trans from market place for a steal I thought it would plug and play on my 16 but I’m finding out it’s not as easy . I have taken it to get programmed but they said they were unable to get it programmed and but really couldn’t explain why. I read somewhere that 17 and up denalis had a different tcm? Could that be the source to my issue? I’ve had 2 shops unable to get it tuned .( won’t start either after Trans install) should I just call this a loss and look for one specifically for a 16? Thanks!

Hey guys I’m in a bit of a tough situation. I’ve been having issues regarding my 16 Sierra 1500 Denali . To when it first started, I was driving and my trucks gauges just randomly shut down felt like my truck was driving on first so I pulled over turned off the truck and when tried to turn back on got nothing. Got it to turn on 30 min later took it to the dealer and they replaced my battery and called it a day. Ok next time comes around coming from work after I hit a speed bump. This time I didn’t pull over and tried to make it home . I made it home and after that the trucks gauges down and they went back up after a while of driving and went back to normal .( this happened most times.) took it to the dealer said it was my battery again and replaced it . This is when my red flags start rising. I forgot to mention recently the times it’s done this I got a check engine and codes that read failed to connect to ecm/pcm ,cylinder misfire . Long story short this has been happening for a while but now more recent and tend to happen when I hit a speed bumpS. I went as far as replacing my ground ( battery to frame), checked the ground inside the cabin near the steering wheel , and even checked if I was getting power to ecm and grounds . It’s becoming so frustrating because at times it will be perfectly fine and other times just won’t even start. Just unreliable. Any help would be REALLY appreciated. Already got sent back from the dealer and they said they didn’t know what it could be.