Need some clarity on how I fixed an overheating problem:
My truck started overheating and I immediately pulled over, let it cool down and got it back home.
I checked the reservoir and it appeared to be empty (I have not seen any leaking fluid nor remember filling it up so I believe I’m the idiot here). I added fluid and attempted to burp the system without my trusty funnel. At first, it started overheating again, so I let it cool. Next time I started it up, I heard what sounded to be a airbubble and then the temp started holding just left of center on the coolside (awesome!).
I’m trying to decipher the logic of what happened and if I should still take it in. Do you think there was trapped air that was sucked in from the empty system that was keeping the thermostat closed? When it finally opened after that air left, it started cooling properly?