Theeonyxblackgmc

@CamGTPso every time it’s happened I haven’t noticed it come on and I do get a check engine light for evap system the code is p0455 or something like that, but would that effect it in anyway?

So I have an 18 sierra 5.3 L v8 Gasoline engine and this just recently started happening but when I hit full throttle when it gets like 4,000 rpm’s and higher it like starts to bog/stutter would anyone know what it could be or some way to figure out what is happening

Hey i need some help with my truck its a 2018 GMC Sierra 1500 5.3 L gas engine my engine coolent temp gets ip to 243 when getting on the freeway and sometimes just going up to 60 i have replaced my coolant tank reservoir my radiator my coolant tempature sensor my water pump and my thremostat a couple times to try to fix this and even after all that it still gets hot im thinking it might be an air bubble but not sure if someone could please help me and give me a some advice that would be great i dont have money right now to take it into a shop to figure it out and yes my fans work ac works and hot sir works. But if some could help that would be greatly appreciated! Really just have hit a road block i cant get past.