Free 7 Day Trial RV GPS App RV Trip Planner Campground Reviews RV Maintenance Free 7 Day Trial ×
RV Trip Planning Discussions

Go Back   iRV2 Forums > THE OWNER'S CORNER FORUMS > Fleetwood Owner's Forum
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on iRV2
 
Thread Tools Search this Thread Display Modes
 
Old 03-19-2017, 03:20 PM   #1
Senior Member
 
paddler1954's Avatar
 
Fleetwood Owners Club
Freightliner Owners Club
Join Date: Mar 2017
Location: Georgia
Posts: 446
Whinny rear end isn't normal :(

We purchased our 2008 Expedition used in 2013. Ever since we have owned it there has been a whine coming from the rear of the coach as we boogie down the road. We always assumed it was a normal sound for a diesel pusher. Well, this week I went on a test drive of a new Allegro Bus my buddy is thinking about buying. Guess what, near total silence while cruising down the road.

This weekend I was planning on doing an engine and generator oil, oil filter & air filter change so..... I checked the differential fluid level, finger didn't touch any gear lube. :( So I drained the pumpkin, lube came out black and the magnetic drain plug looked like a 90's punk rocker with the spikey hair, not good.

Taking the coach to Freightliner tomorrow to get a quote on replacing the differential. The "over the phone" ball park estimate is $5000 if all goes well. We have an extended warranty but I'm sure they're going to ask for differential service records before they will pay any portion of the repair.

Painful lessons learned, 1) don't buy diesel pusher with whinny rear end, 2) drain and replace differential gear lube when I do my annual oil changes.

paddler1954 is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 03-22-2017, 08:04 PM   #2
Senior Member
 
paddler1954's Avatar
 
Fleetwood Owners Club
Freightliner Owners Club
Join Date: Mar 2017
Location: Georgia
Posts: 446
Just a quick update. Final cost was $3930. So from now on, when I change the oil, I'll also be changing the differential fluid.
paddler1954 is offline   Reply With Quote
Old 03-23-2017, 08:28 AM   #3
Senior Member
 
88keys's Avatar
 
Join Date: Jan 2013
Posts: 113
We've got a similar issue, but, our "whine" and "drone" is on an '08 Sprinter 3500 chassis.

When talking with some different differential experts, when they found out it was a "Florida RV" possibly sitting for quite a while, bells went off and corresponding sounds emanated from the phone.....as in, "ahhhh !"

Turns out, there were two issues with Sprinters :
#1) When Mercedes owned Dodge, as it was told to me, they imported the Sprinters un assembled, assembled them here, and they could possibly sit around for a while before being shipped on the docks.

#2) If it's an RV in a humid climate, the differential sits "half in -half out" of the precious bath tub that is the differential, with oil/fluid that protects it only covering half of the metal. The other half corrodes causing the characteristic "whine-pause-whine-pause...etc.." rotational noise.

The drone ? no idea. But, it occurs exactly at 55 mph which on rural Ontario highways is a perfect speed. Arghh !!!

The other nasty thing that I was told is that you can replace the whole thing and STILL have the exact same recurring problem. It turns out that differentials are made differently today than they used to be. The expert explained it but I can't remember the difference. There used to be a mitigating design which is no longer used....maybe much in the same way that transmissions these days are sealed !!! imho, this is ridiculous.
__________________
2009 Fleetwood Icon 24A-Sprinter Diesel
88keys is offline   Reply With Quote
Old 03-23-2017, 08:31 AM   #4
Senior Member
 
mchero's Avatar
 
Join Date: Mar 2006
Location: Full Time USA
Posts: 2,203
I think changing diff. oil with each engine oil change is a tad too frequent.
__________________
Robert & Deb
07 Discovery 39v FWS Full Timers, Henniker NH
1K solar - 05 Jeep Grand Cherokee
mchero is offline   Reply With Quote
Old 03-23-2017, 01:38 PM   #5
Senior Member
 
paddler1954's Avatar
 
Fleetwood Owners Club
Freightliner Owners Club
Join Date: Mar 2017
Location: Georgia
Posts: 446
Quote:
Originally Posted by mchero View Post
I think changing diff. oil with each engine oil change is a tad too frequent.
Once a year is the freightliner recommended interval. 3 years if you are using synthetic gear lube.
paddler1954 is offline   Reply With Quote
Old 03-23-2017, 02:39 PM   #6
Senior Member
 
mchero's Avatar
 
Join Date: Mar 2006
Location: Full Time USA
Posts: 2,203
Thanks for the info.
mchero is offline   Reply With Quote
Reply



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
3.31 rear end vs. 3.55 rear end AJP207 Trailer Towing and Tow Vehicles Discussion 38 10-02-2015 07:50 PM
A High End Gas Class A or A Low End Diesel Pusher Grandcanyon Class A Motorhome Discussions 110 04-23-2014 10:22 AM
What are normal front and rear brake temperatures Janet&Sid Alpine Coach Owner's Forum 3 03-05-2011 12:16 AM
Close to rear GAWR - Normal? Kathy_MD Ford Motorhome Chassis Forum 6 09-04-2010 03:03 AM

» Featured Campgrounds

Reviews provided by


All times are GMT -6. The time now is 12:32 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2021, vBulletin Solutions, Inc.