hey guys ive had my gt since early august after a bad experience with a z28. it had a very slow coolant leak at first and I was like imma fix it but it progressively became worse after replacing some of the things. ive replaced the intake manifold, ive replaced the reservoir, thermostat, the hose that leads to the thermostat, the water pump..y mechanic says my freeze plugs and radiator are fine and no blown head gasket no cracked block etc. ive never overheated it. and it just leaked a bunch of coolant from the cap...again...it didnt do this earlier today at all. just tonight...I really really hate this leak...oh also I tried putting the heat on on my way home and it was cold. and after I noticed that coolant came out of my cap...which I replaced last week