What's up guys I am Marco (Kittykittylicklick666) I'm a newbie in tuning and in vehicles in general but. I let some Jack ass do my 5.3 ls swap on my 2006 Colorado but that dumbass couldn't do it so I'm stuck doing it and I'm learning little by little. The engine is already in and I got it wired up last week and it turns on but I'm having issues with the trans not getting out of first gear .