I have a 96 volvo 960 wagon and recently have noticed antifreeze on the ground under the passenger side,Ive googled the problem and have found it might have to do with the heater core.I have looked under the car to see where it is leaking from and cannot locate the source,can someone please help and tell me what i am looking for and if this is an easy fix i dont want to take it to a garage if this is something im able to do myself.The car is due for inspection at the end of the month so i nedd to do this asap thanks for any help anyone can give me.