Ok, I’ll get this out of the way first. I’m a medically retired ASE Certified Gas, Diesel, and LP engine mechanic, I have a 2000 3.8 5spd car that when I drive it and pull over the cap is leaking. I bought a new one with the purge lever and it’s leaking too. I haven’t done a pressure test yet since I don’t have one small enough for this little radiator, and I haven’t done a compression test but do have the tools for that. One thing I did notice was the radiator was clogged. So I flushed it, opened vent, filled till all the bubbles quit coming out of vent, and then turned car on, ran it for about 2500 rpm and added a little more coolant. Now I don’t notice it going into the expansion tank when I’m sitting there watching it but I did notice a little bit after I drove it to test, and when I pulled over to pop the hood I saw that the new cap was spewing some under the pop off valve. Now for the head gasket issue I’ll check that later, I do know I’ve checked the oil and there’s zero coolant in it, it’s clean as a whistle, I’m not going to waste anymore coolant if I don’t have to, but what am I missing here fellas. I bought the car off my brother and I’ve had it sitting for a while and recently got it out and noticed this after I’d started working on it. As said yes the header blows hot as hell in the cabin but I know there’s gotta be air somewhere. You know I’ve never cracked open those block ports for the coolant to flush, matter fact I don’t even know where the hell those are. Anyone got a clue where those are? I just wanna make sure something’s not clogged.