Bigger tires effecting temperature?

Jackal19 · May 21

I went from 31” to 33” tires last June and in Sept I started to overheat a bit but since replacing the thermostat it hasn’t been overheating. Now that it’s a bit warmer it starts to move the gauge to like 215 when normal is just below 210. Is this something I should be concerned about? I also have a cold air intake so could the tires being bigger and causing more heat cause the temps to go up a bit? Thanks in advance!

Rad_Rado17 · May 22

Update the cooler bypass valve. There's a few different ways to do it. You can either buy the updated part form GM, there's a kit you can buy online, or you can flip the pill in the valve. Just youtube it, there's plenty of videos out there. I bought the updated valve from GM, I have 35" tires and my transmission temps hover around 160-180.

newdude · May 22

22 hours ago, Jackal19 said:

I went from 31” to 33” tires last June and in Sept I started to overheat a bit but since replacing the thermostat it hasn’t been overheating. Now that it’s a bit warmer it starts to move the gauge to like 215 when normal is just below 210. Is this something I should be concerned about? I also have a cold air intake so could the tires being bigger and causing more heat cause the temps to go up a bit? Thanks in advance!

Affecting "what" temperature? Coolant? Transmission?