Thankfully not the heater core . The rubber cowl bladder must have plugged up on my 2006 GT during this last massive storm, and the passenger side carpets front and back got soaked..I plan to remove the bladder and clean the area, replace the cabin filter ( where the water enters ) ,however I am asking the forums advice on 2 points. Should I just toss the bladder , or if it's not too dried out massage it with some pure silicone to revive the elasticity ???...Also, is it mandatory to lift up the carpet and install new under padding , I don't want the work , but I am afraid of mold growing under the carpet..What do you guys think ? Thanks in advance !