lost comm with tcm came on yesterday when pulling about 7k went off when i unloaded it do i need look farther into it or let it go

Post some info about your truck and mods you have done to it. Might shine some light what to look for.

Brian

I would clear it and see if it comes back first. Sometimes its just a blip with that code. I know I've had it before and I cleared it and it never came back.

just a mbrp 4" turbo back and ppe airbox mod

I would say a glitch at the moment as well.

Brian

I'm having the same issue. The code clears only to have turn moments later. 4" MBRP, PPE air box mod, and hyptertech programmer.