go to auto zone and rent(free rental) coolant leak pressure tool...put up my credt card, the took out $99 for it and i bought it back few hours later and they credited my card... so there was no charge.(they cant just let you take it.. its like a security deposit so you will bring it back when finished.... worked for me... it also checks the rad. cap to make sure it holds pressure...its suppose to hold 14-16 lbs of pressure..mine would only hold 4 lbs and then blow out the coolant.....
