I have an 88 legend, just replaced my fan contol module with a 89 or 90 module (from junk yard). they look a little different, this one is white, my old one was black. Is it normal for the fan to kick on at a different time then with the 88 module. It seems yesterday that my temp gauge showed a half way or a tiny bit more before my fan kicked on. before with a working fan control module my temp gauge would never get to the half way point. Should return the fan control module for another one or if my fan is kicking on should I be satisified? Thanks for the help.