I have a 95 3.4 v6 camaro. I've had the car for four years and have only recently had problems with it. I've had the tranny rebuilt, replaced all the front end parts, and recently had to replace the water pump due to over heating. After replacing it. The car still over heats at an idol, but stops if its driven.If its driven for more than 45min it will begin to knock but not over heat. It will lose all oil pressure. Once it starts knocking it will not accelerate and looses all power. The car also stops running at random times and the gauges will go all over the place. I cant see where its leaking coolant, but i have to fill it back up after a few days. I can hear a lifter ticking. But i dont know what the knock is. It sounds like its coming from drivers side of the engine.