Hey guys. Weird problem has developed now that it's getting colder. At start up I tend to hear coolant circulating behind the dash at start up. Sounds like water coming down a drain on the second story. No leaks, plenty of coolant and I just replaced the radiator cap yesterday (only possible way air was getting in do to faulty pressure from cap, and it doesn't appear to do it as much now, but still occurs some). Appears pressure was restored. How else could air be coming into the cooling system, or does it need a fee more days to burp itself out?
