u/DUNINTECH

Hey, so im really unsure as to what this is, idk how long it’s being doing it for but i just noticed it. Whenever im accelerating the engine feels and sounds normal but as soon as i let go, or if i downshift into say 2nd gear, or im driving downhill while not accelerating it sounds like there something lose, kinda like marbles moving around. I can’t pinpoint where it’s coming from but it’s certainly near the engine. It still drives fine, is this something i should be very worried about? What diagnostic steps should i take? Thanks to anyone who helps me out!

Hey everyone, im wondering if there is anyone here who has the knowledge to help me out, i dont know where to start or why this happened but as you can see from the video my hummer starts but very quickly dies. I already tried putting some more fuel in it btw…. And since the car wasn’t used for like a month, I disconnected the battery so it wouldn’t drain but this also caused all codes from the car to erase… so I have no codes to diagnose my issue and idk why its not starting all of a suden. Any input is appreciated! Thank you.