Driving noise
I have a 2008 W-24. Starting at 50 mph, I can start to hear a whine. It is loudest around 55 and then declines at 60 (can barely hear it after 60). This occurs ONLY in 6th gear. When I flip the switch to 5th, there is immediately no noise. The local allison shop said it is not the tranny. Considering that it does not do it in any other gear at that RPM range and that it vanishes when changed to 5th, I suspect they simply have no idea (they are mainly a big commercial diesel outfit). Before paying good money to some one else, has anyone else had this problem.
|