It's gotten gradually worse since I got it June of last year. It's not coming from the heater hoses, it's not coming from the intake gaskets on account of I just replaced them... I just know it's coming from the passenger side of the engine in a spot where I clearly can't see. It leaks down the same heatshield as the AC condensation, but it can't be the heater core since it's running down the block. I feel like it's a freeze plug. What problem areas are there on the passenger side of the engine other than heater hoses?