Q: something in my power stern system squills really loud in the cold when i crank up 1995 mercury grand marquis 187565
A: woah..I thought we were talking about the Mercury outboard here for a second... IF something is squealing in the transmission, you need to go look at it at a shop as something is slipping.... if it toward the engine side, usually a belt is starting to go or one of the pulleys is starting to have issues with it.