ceptap Report post Posted August 9, 2013 We have a 2003 Monaco Monarch SE, gasoline, Workhorse chassis 8.1, Allison tranny, 32,000 miles. We are "sometimes" getting a whining noise. Can't tell if it is coming from engine or tranny. Seems to be on acceleration and deceleration, but not positive. No problem with anything (i.e., lots of power, etc.). Thanks! Charles Share this post Link to post Share on other sites
dickandlois Report post Posted August 9, 2013 Charles, Check the transmission fluid level, It maybe time to have the transmission serviced. The other item that can give you a winning sound is the rear differential, so check it for proper gear oil level and it might be a good idea to have it changed also. My thoughts on where to start. Rich. Share this post Link to post Share on other sites
wolfe10 Report post Posted August 9, 2013 Yes, if the noise changes with acceleration/deceleration it is quite likely the rear axle. Also check power steering fluid level. They can also whine, but the whine changes with RPM, not acceleration/deceleration. Brett Share this post Link to post Share on other sites
ceptap Report post Posted August 11, 2013 Ok, thanks for the info. Called the shop where we get our work done and coach goes in on Wednesday. I will post the result, it may help someone else down the road! Charles Share this post Link to post Share on other sites
ceptap Report post Posted August 15, 2013 It was the differential, it was a little low, had it serviced and coach is quiet again. Thanks Share this post Link to post Share on other sites
