i have a B0164 code on my truck, my truck has auto temp control for the heat, the problem is i get heat at the 90 degree setting and when i turn it down to 89 or lower it starts blowing cold air. the dealer i took it to wants to change the two thermostats and have me put on the grill cover, i don't think it is the problem my truck don't overheat and it warms up just like any other truck i have had,what sensor is bad and how hard is it to change? i might try to do it myself thanks

The inside temp sensor is above your head when sitting in the drivers seat, you have to lower the headliner to change it. Like I mentioned on the phone when you called, your dealer is pissin in the wind! You can do it yourself, but they can do it for free

Thanks Eric I don't think i want to go back to them, they screwed me once, i think i might could change it, do you know the part # and do you have one? Thanks for your help, Gary