yeah thougth about that, the hissing being the release of pressure and its designed to do that. well now i have white smoke coming from my exhaust when i start it up and it has an anti-freeze smell to it, i've lost some antifreeze from the tank. i've looked at 3 of the 6 spark plugs and they are clean of anti-freeze and oil so thats a good sign and the dip stick doesnt have anti-freeze on it either so im encouraged that it doesnt seem like a blown head gasket right now. any ideas? im thinking about putting my old reservior tank back on with the pressure relief tube on the back of it and use the new cap and see if that helps maybe.
