Getting Ahold Of Winnebago
Hopefully someone might know a way of getting ahold of Winnebago engineers or ? To get some help/answers ?
I have a 2011 Aspect 28B built on a 2010 Ford E 450 chassis.
I'm the 3rd owner , I bought it with 12,800 on the OD.
On the test drive I noticed a little drone noise, but thought it was the BFG Commercial tires.
The tires had been replaced 3 months before and 2k miles on them due to the Michelin Tire recall.
I had the Tire shop swap out the BFG's for new Michelin's.
Noise still there.
Had them recheck and Road Force balance them , Noise still there.
While replacing the front stock undersized ASB I noticed the rear of the trans was wet.
Since a extended warranty came on the MH when I bought it , I took it into the local Ford Fleet service dept that works on MH's.
Explained the leak and drone noise I was getting.
They road tested and heard the drone noise .Then put it on a lift and verified the leak, they replaced the rear trans tail shaft seal.
Said once they aired up the rear airbags the noise went away.
I asked so what's the fix IF it didn't have the air bags, they said rear leaf springs.
So they replaced the rear leaf springs, said it was fixed.
I went down took it out for a road test , drone noise still there and now noticed a slight vibration coming from the rear of the MH. The vibration was probably there to begin with just now I'm more tuned into the problem.
Now they said the drive line (3 piece) needs to be shimmed , the angles are not right so they shimmed the rear of the trans, both center carrier bearings supports. Vibration and drone noise still there.
They then shim the rear diff.
Noise / vibration still there.
Now they don't know what to do , I tell them to pull the drive-line out and send it to a drive-line place to have it checked out.
I called the drive-line place and talked with them. Told them what was going on.
Once they got the drive-line, they said the center carrier bearing/ supports were "sagging" so they replaced both , checked the balance and the rear drive-line section was off so they balanced it then the whole set-up as one.
Good to go, the Ford place picks it and re-installs it.
I go down and take it out for a test drive, it is now worse than the day I first brought it in.
I get up to 53 mph the drone noise starts , then 55 mph the vibration starts, at 60-63 mph is when its the worst. Once past 70 mph its gone.
I can take it up to 75 mph , let off the gas pedal , put it in neutral and shut the engine off. Once it slows down to 69 mph the vibration/noise starts and worse at 63-60 mph then gone below 53 mph.
The Ford place doesn't know what to do and basically just been shotgunned parts at it.
I've tried to call a couple numbers at Winnebago with no help.
The local/closest Winnebago dealer service dept has such bad reviews/reputation I'm leery of taking it there.
Would appreciate any help , suggestions on the matter.