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 > MOTORHOME FORUMS > Class A Motorhome Discussions
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 05-11-2021, 07:36 PM   #1
Junior Member
 
jerfox's Avatar
 
Monaco Owners Club
Join Date: Aug 2019
Posts: 8
Something Goes Bump in the Night (and Day!)

Hey to You RV Wizards! Hoping you might recognize something familiar and solve a mystery for me. In my Monaco DP, the past few weeks, there's a randomly occurring, night or day, moderately loud thump with an ever so slight vibration to the coach that occurs from underneath, it seems.

There doesn't seem to be an aftereffect following the thumps, like a tilting to left or right due to air bags or suspension starting to fail, as far as I can tell from checking the undercarriage. During the time its been noticed, we've been parked at an RV Park and plan to be stationary another month, but seems best to get a bead on it and do some assessing and possible problem-solving before getting on the road. Any thoughts on this from your wealth of collective knowledge and experience?

JerFox and Cody, Cabo Street-Dog Rescue
2008 Monaco Diplomat, 36' towing 2014 Honda CR-V
jerfox 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 05-11-2021, 07:45 PM   #2
Moderator Emeritus
 
TXiceman's Avatar


 
Ford Super Duty Owner
Join Date: Aug 2000
Location: Full Time, TX Home Base
Posts: 20,591
Blog Entries: 21
Might be the hydraulic jacks. Have you added a friction modifier to the fluid? Talk to the supplier of your jacks. When you go through some temperature swings they will pop.

Ken
__________________
Amateur Radio Operator (KE5DFR)|Full-Time! - 2012 6.7L Ford Crew Cab Dually -2013 HitchHiker Champagne 38RLRSB - Travel with one Standard Schnauzer and one small Timneh African Gray Parrot
TXiceman is offline   Reply With Quote
Old 05-11-2021, 07:47 PM   #3
Senior Member
 
Monaco Owners Club
Join Date: Jan 2020
Posts: 1,182
If you have air leveling my guess would be a bad/ loose auxiliary air compressor.

The leveling is somewhat small and itís taking you to level so you would not be out of level when it gets done pumping air.
__________________
New to us 2000 Monaco executive 40 500hp tag
Biljol is offline   Reply With Quote
Old 05-12-2021, 03:43 PM   #4
Senior Member
 
153stars's Avatar
 
Join Date: Mar 2019
Location: Braidwood Il.
Posts: 4,226
It's been discussed several times use of Cat striction eliminator additive but smallest is half gallon . A qt. of 15wt synthetic fork oil "not silicone oil " is the go to . most leveling systems use a sensor in tank for jacks down alarm so take a qt. out put a qt. in or follow directions to get level perfect again.
__________________
95 Monaco Crown Royale
M11 400hp, 4060 trans.
Aquahot, Generac Guardian7.5k
153stars is offline   Reply With Quote
Old 05-12-2021, 04:17 PM   #5
Moderator Emeritus
 
Gary RVRoamer's Avatar


 
Join Date: Jan 2000
Location: Silver Springs, FL. USA
Posts: 24,636
I've had two coaches with that symptom. Here are both war stories.


My '96 Southwind did that on cooler nights. After a lot of testing and measurements, it was decided that the noise was the fuel tank sliding slightly on its support straps, which were basically a sling. The tank contracted as it cooled and moved a bit. You could actually see a band of clean metal where the tank rubbed a bit on the straps. Nothing to be done short of major $$.



My 2004 American Tradition did that from the factory - it was clearly the rear jacks slipping just a little, usually as temperatures cooled off in the evening or overnight. It was more evident when the rear was raised high relative to the front. American Coach consulted with Equalizer and finally decided the OEM jacks needed to be upgraded to the next larger size. They did that and never another bump in the night.


Slightly leaking hydraulic valves would do the same thing, I think.
__________________
Gary Brinck
Former owner of 2004 American Tradition and several other RVs
Home is in the Ocala Nat'l Forest near Ocala, FL
Gary RVRoamer is offline   Reply With Quote
Old 05-12-2021, 06:19 PM   #6
Senior Member
 
Flanz's Avatar
 
Join Date: May 2014
Posts: 1,080
This is one of the most common complaints with Hydraulic levelers. I even had this issue with my jacks and have used and suggested the Cat Hydralic fluid with great success......
Attached Files
File Type: pdf Popping Issue.pdf (504.4 KB, 5 views)
__________________
Paul and Diane
2017 Entegra Anthem 44B
Ď05 Toyota Tacoma- Ď19 Harley-Davidson Roadglide Ultra
Flanz is offline   Reply With Quote
Old 05-13-2021, 09:14 PM   #7
Member
 
johnfr80504's Avatar
 
Monaco Owners Club
Join Date: Aug 2019
Location: Longmont, CO USA
Posts: 62
Silicon Spray on Jacks When Extended.

Our owners manual recommends spraying the extended jacks every 3 months with Silicon Spray. I carry a can of WD-40 Silicon Spray with me. When this starts happening, I give each jack a good spraying of the WD-40 Silicon Spray and problem goes away for a while.
__________________
2007 Monaco Cayman/2017 Jeep Rubicon
Photographer, HAM Radio Operator KA7IPL
johnfr80504 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
A bad bump in the night popsrigger National RV Owner's Forum 14 10-28-2015 12:55 PM
Revolution "bump in the night" Dirt Rider Fleetwood Owner's Forum 12 01-31-2013 10:46 AM
I hate things that go bump in the night TexasTwoStep Excel Owner's Forum 27 01-20-2013 12:50 AM
Does Your Coach Go "Bump in the Night?" RickO MH-General Discussions & Problems 15 02-11-2008 08:47 AM
Hydro Hot, Things That Go Bump In The Night! Lug_Nut Newmar Owner's Forum 5 01-05-2008 03:50 PM

» Featured Campgrounds

Reviews provided by


All times are GMT -6. The time now is 01:32 AM.


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