I have a 97 camaro V6 3.8 series two, and i'm having a problem where my coolant is leaking someplace besides out onto the pavement and am having troubles figuring out where it is going. I had been meaning to replace the gaskets in the intake manifold to retain the problem but i kept on procrastinating about it. Well the other night I drove about 20 miles to go pick up a friend and as i put it into drive i started to hear a terrible sound as though i was driving a huge desiel engine truck. i thought it was no biggie then it did it again 10 times worse and my check gauges lite came on and i noticed that my temp guage was WAY past the red line. i mean the sound was like a bad CLANKING sound like a knockin sound..so the next mornin i went and discoverd that there was barly any coolant left so i put in water and drove it home and my engine was just missing it was as though a few cylinders wernt firing.. so i finally got the gaskets replaced today..is it too late? is there more damage that is probably made to my car? so far it runs fine and that noise is gone... anybody have any advice? reply asap