I just threw a P0128 code, but My gauge in Looks like it is running about 200 F. Can I still have a bad thermostat?
Also I see on youtube lots of LLY videos but none for the LML is it the same??
2011 Chevy 2500HD Shortbed Duramax, EFI Live and AFE 4" exhaust, I have Frontier front and rear replaced bumpers as well has full length nerf bars.
2016 Cypress 42ft