RV News RVBusiness 2021 Top 10 RVs of the Year, plus 56 additional debuts and must-see units → ×
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.
  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 11-17-2019, 07:35 AM   #1
Senior Member
Join Date: Jan 2018
Location: Cave Spring, GA
Posts: 184
Strange popping

We were coming back from a trip to Disney World and we were about 10 miles from home and the motorhome made a strange popping sound. Almost like something locked up and then broke free.

Yesterday I went to move the motorhome and it did it again. I put it in drive and no movement forward and it was stuck, I then put it in reverse and it popped and then I could move it in either direction. I don't know where the pop came from because the wife was not home to help me locate it.

We did blow out a driver's side tire on the way down to Florida. There does not seem to be any damage in the wheel well other than the fuel filler tube was ripped off. Nothing further down the coach.We made it to Disney just fine and to the beach after that.

First thought was brakes, which it may be but strange it did it the first time just driving down the road. Beginning to think it may be the jack shaft u-joints. I may just replace them for piece of mind.If that doesn't fix it then I will start pulling tires.

Has anyone ever changed the jack shaft u-joints on a 1998 Tradition? Where did you order them from?
1998 Fleetwood American Tradition
2004 H2 Hummer- Toad
CW4 Retired Army (1985-2016)
chiefM 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 11-17-2019, 10:17 AM   #2
Senior Member
Jim_HiTek's Avatar
Join Date: Nov 2011
Location: Full time RV'er
Posts: 3,265
Did you hyper-extend your front jack in order to help with the tire change?

If that's the case, you might have noticed a big rubber cushioning device near the wheel. A rubber bellows type thing...an air bag. When you extend it, the bellows gets some kinks in it and later as you're driving, it POPS as it fills out again...usually caused by bump and lumps in the road...totally random. Takes days of driving sometimes for it to get back to normal.

If you did help jack up the front of the RV, that could be all it is. Nothing to worry about, usually. But it may shorten the life of that air bag.
'02 Winnebago Journey DL, DSDP, 36' of fun.

Visit my RV Travel & Repair Blog at : https://chaos.goblinbox.com
Jim_HiTek is offline   Reply With Quote
Old 11-17-2019, 04:40 PM   #3
Senior Member
Jthigh's Avatar
Join Date: Dec 2017
Location: Charlotte, NC
Posts: 423
Could be a sticking brake/slack adjuster. Maybe air line got a kink in it from tire issue and air diaphragm is not engaging and disengaging properly.

Unlikely but if brakes are worn significantly, I have heard the brake cam lobe can get stuck at high center.
2002 American Eagle 40M
ISL400 / Spartan MM
2003 Jeep Liberty/2019 Jeep Trailhawk
Jthigh is offline   Reply With Quote
Old 11-17-2019, 08:59 PM   #4
Senior Member
Join Date: Jul 2014
Posts: 24,654
Are we talking the poping from the front or rear ?

U joints won't stop the MH from rolling, a stuck brake can.

With helper, get the air pressure up, and have someone push in the parting brake knob, while watching the rear slack adjusters. A normal one will move towards the chamber. A stuck one will hang out where it was before you pushed the brake button in.

As the shoes wear, the S turns more and more. At the last of the S, it can stick, as in the image.

The S cam shafts also require grease. The fitting is often overlooked and buried in dirt. If the dry out, that can also cause sticking.Click image for larger version

Name:	Capture%2B_2019-11-17-21-56-55.jpeg
Views:	19
Size:	35.6 KB
ID:	267202
twinboat is online now   Reply With Quote
Old 11-22-2019, 11:46 AM   #5
Senior Member
Join Date: Feb 2018
Posts: 243
Since the first time happened while rolling and almost home, I would question it being related to the brakes hanging. Anything is possible, but I would be more inclined to suspect a foreign object in the rear axle or possibly the transmission. It's easy enough to ensure the slack adjusters/ cams are not binding. Chock the wheels and release the brakes. Then you should be able to pull out on the slack adjuster and have freedom of motion. Both sides should feel the same. As mentioned, a bad u joint definitely would not have these symptoms.

Good luck.
SlowJoe is offline   Reply With Quote
Old 11-23-2019, 09:33 AM   #6
Senior Member
Join Date: Jan 2018
Location: Cave Spring, GA
Posts: 184
The first time it did it we were going about 45 miles an hour. Had not used the brakes in over 2 miles. I will see if I can narrow it down.
1998 Fleetwood American Tradition
2004 H2 Hummer- Toad
CW4 Retired Army (1985-2016)
chiefM is offline   Reply With Quote
Old 11-23-2019, 10:39 AM   #7
Senior Member
Join Date: Feb 2018
Posts: 243
Originally Posted by chiefM View Post
The first time it did it we were going about 45 miles an hour. Had not used the brakes in over 2 miles. I will see if I can narrow it down.

That almost certainly eliminates the brakes. Unfortunately, it is most likely rearend related or possibly transmission. There just is not much that can be responsible for the symptoms you experienced. Either way, it would be best to take it to a shop to have it checked out before more damage occurs. Hopefully it will be relatively cheap and easy to locate/ repair at this time.

Good luck!
SlowJoe is offline   Reply With Quote
Old 11-23-2019, 05:12 PM   #8
Senior Member
mackwrench's Avatar
American Coach Owners Club
Join Date: Apr 2016
Location: North Florida
Posts: 1,897
I'm guessing your American Coach has IFS, if so at that year model I'm sure the ball joints are a problem.
Once they wear out you'll get a popping, creaking sound.

I'm not sure the "not moving" issue is related.
Sometimes a shoe will rust fast to a drum after parking and all at once break free..... usually after rain or washing the wheel end or somehow water got between drum and shoe.
If it ain't made that noise again, probably a non event.

These coach's were notorious for the rubber protective boot to fail allowing the now exposed joint to wear out in a hurry.

If you can safely get under coach, take a look at them.
However you'll need to jack each wheel up to check joints.
A search here will provide you lots of IFS ball joint threads.

.....to answer your last question, the u-joints in the drive shaft are a common truck part that you can get at ant heavy truck parts store or truck dealer in your area.
Have you greased them? The u-joints will have a grease fitting on them (there's 2 of the joints)
But honestly the issue you described don't sound like a drive line problem.

But does point out the need that the brake s-cams and slack adjusters could also need greasing....
1999 American Eagle
ASE med/heavy certified technician
ASE advanced diesel certified
mackwrench is offline   Reply With Quote

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
Strange "popping" noise from underneath coach MikeGriffin Newmar Owner's Forum 9 10-26-2017 02:52 PM
HWP Jacks -- Violent Movement and Strange Popping Noises Road-Chi Newmar Owner's Forum 17 01-17-2016 10:36 PM
Popping Breaker Wjmt001 National RV Owner's Forum 10 04-20-2009 01:57 PM
Popping Noise around leveling jacks Ranger Reg Damon 18 03-05-2009 09:19 AM
Surround sound system "popping" when radio off. Catpowered Winnebago Industries Owner's Forum 8 11-28-2008 08:50 AM

All times are GMT -6. The time now is 08:42 PM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2020, vBulletin Solutions, Inc.