There are some ideas in this thread. (see entries #6 & #7 on the list)
http://www.peachparts.com/shopforum/showthread.php?t=106818&highlight=silence

__________________
-Marty

1986 300E 220,000 miles+ transmission impossible
(Now waiting under a bridge in order to become one)

Reading your M103 duty cycle:
http://www.peachparts.com/shopforum/showpost.php?p=831799&postcount=13
http://www.peachparts.com/shopforum/showpost.php?p=831807&postcount=14