1 Breakages are less as the boards are much tougher and have fibers reinforcing in them. 2  they damage less easy from general wear and tear in everyday use in a home or office. 3  It offers slightly better acoustics than standard board.  It is a superior product in case of fire.
It is normal for the solenoid to make noise, it clicks when the valve is turned on or off. It also is normal for a very soft buzzing sound to be heard when the valve is activated, but you should not be able to hear it unless you put your ear near it. If you can easily hear it buzzing, that is not normal.
Best Answer: The noise could be associated with the shift solenoids, or valve body, especially when fluid level is low, recheck the level and make sure it is not low. The solenoid pack can make some noise when shifting more like a ratcheting type sound, but this is rather normal for this transmission. 12pleze........ that's funny, you should relay talk about something you know about, obviously you have a Ford, and don't relay care for Mopars.