[BullittSVT]

01 Z28

Here's my story for you guys and hopefully i'll get a few ideas out of it

Yesterday my car over heated (that needle was in the reddd), under normal driving circumstances. Last summer I had the same problem, it over heated alot... added some coolant and it went away, I also did a flush in October and it never gave me a problem all winter.

Back to today, within the past few months I've seen very slight leaks from the sides of the radiator (the plastic part), like I said... very slight.

There was no heat coming from the vents, bone cold...

I replaced the thermostat/housing and added Dexcool and let it idle.. needle went dancing at 210 and started to climb so I shut it off. Thermostat didn't look visibly damaged when I popped it out

Water pump was replaced 2.5 years ago after it blew up on me on the parkway my first day driving it home

All the hoses look fine, no cracks or anything.

I dont see coolant on the ground when I leave it parked over night.

As i've just done this thermostat, could I of let air in the system and it just needs to pass through? Or could I still have a problem? Why did it overheat in the first place?