Parkland, did you buy your truck new? Just wondering if maybe someone modded your tank before you got it.

My truck starts running like crap just below the 1/4 tank hash, gets louder and gutless. Was all stock that I am aware of when I got it, until I decided to save some money coming to FTE and got baddddd case of PMS

Original poster, I wonder if you have a cracked pickup tube in the tank maybe? Lots of smoke when cold also tells me glo plug relay, except you are in LA, not MT like me....