Ok so I had a rolling coal mod a few weeks ago and I guess I deleted it and now I wanted it back so I looked it up and can't find anything and I remember I found it on here so idk help !
https://www.beamng.com/resources/daddelzeits-pack-of-stuff.16782/ It adds the rolling coal ECU among a lot of stuff.
Thanks that's the mod I had I had just forgot that it was not just a coal rolling mod that it was a pack of stuff !