Ok yesterday i ran seafoam through my truck and it all went fine at first.Then later that night i noticed the temp getting a little hot so i went home and let it sit.Then today i noticed it smoking from the back of the engine and checked the coolant and it was brown and burnt smelling.Then i noticed something leaking from underneath from arunt the back of the engine and thier was melted black plastic around were it was leaking onto the ground.Like a thick black flat plastic.Please help me fix my problem.
Thanks

 

I highly doubt that the seafoam caused this. In the 30+ applications I have used seafoam in, I have yet to have it cause any system failures, but there is always a chance. Did the engine backfire at any point during the treatment? Can you get a small mechanics mirror and pin point the location of the leak?

 

Im not blaming it on the seafoam just figured i would say i did do that before i had this problem.I will tommorrow look under the truck after i get out of school.