07 WRX - hey guys, For the past month I have been chasing a slow coolant leak that I have yet to find. I'm filling the reservoir every other day or few days. The car runs at normal operating temp but can smell burning coolant and about two times after driving there is steam in the engine bay. The dealer pressure tested it and could not find a leak. Then my dads mechanic pressure tested it and could not find anything and was pretty stumped. So I need any help or advice you may have to find this bastard. Thanks.