I was driving my car and my ac suddenly started blowing warm. As I noticed, my themrostat went up almost to the red line on the thermo. I have been burning oil for a while bc of my valves I was told. When I checked the motor, there was barely any oil in it. When oil was added back I put in too much so i tried to drive to a local shop to have it drained. My thermo instantly went back to red and I am now burning a lot betweeen shifts and the motor is bogging. I did not make it to the shop bc it was running so hot. As I was pulling back into my work parking lot it made a metal clang sound as I reved to put it 1st to pull int he parking lot and blew a huge puff of smoke from the exhaust. Is my motor gone? or do I have other big problems. If I need a new motor does anyone have any suggestions? I just got a new gearbox, ATTS system, clutch and flywheel in January so I don't want to get rid of it anytime soon.