Go Back   iRV2 Forums > MOTORHOME FORUMS > Class A Motorhome Discussions
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 12-23-2009, 07:49 AM   #1
Senior Member
csp's Avatar
Monaco Owners Club
Join Date: Oct 2009
Posts: 171
04 Tiffin leveling jack problem

I have a friend with a 04 Tiffin 36'. He is having a problem with the jacks retracting. He said the pump is running and it seems like it is trying to move the jacks by the sound of it running but they will not come up. He has to jack them up with a floor jack. It is the rear jacks that is giving him the problem. The dealers are just wanting to replace the jacks. Any information would be helpful.
Thank You Chris

Monaco Dynasty
csp 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 12-23-2009, 08:15 AM   #2
Senior Member
paz's Avatar
Join Date: May 2005
Location: Full-timers - Home is where we park it.
Posts: 4,431
The pump should not be running when the jacks are retracting. If it is, there may be a problem with the control board. Have your friend call HWH. They are very good at walking you through the trouble shooting process.

During retraction, the solenoids are open (no pump) and the springs pull the jacks up returning the hydraulic fluid to the reservoir. Cold weather increases the viscosity of the fluid and makes slow jacks even worse. If jacks are slow to retract, DO NOT allow them to sit in the retract position too long (more than 8 or 10 minutes) because the solenoids get hot when energized and will burn out. I had this same problem and burned out two of my solenoids before HWH got things corrected.

HWH did end up replacing both my rear jacks, but that was under warranty, and I would only do that as a last resort if I had to pay for it myself. Try other fixes first.

As a temporary fix, you can use a 2 X 4 or other pry bar to "help" the springs return the jacks, or use the floor jack as your friend did. You can also periodically wipe down the shiny part of the jacks with WD-40 while extended to clean them. Make sure the jacks are dried thoroughly after wiping them down before retracting.

When the springs get old, they loose strength and need to be replaced. HWH also has also produced heavier springs that do a better job of retracting the jacks. If your friend replaces the springs, make sure he gets the heavier ones.

Have your friend check the documentation that came with his Tiffin to get the model number of the jacks and call HWH. The model number of the jacks should also be printed on a piece of paper pasted in a rear cabinet. If he is not comfortable doing the work himself, I recommend he still talk to HWH to have them give him advise before he spends a lot of money at a repair shop. As I said, there are several other things to try before replacing the jacks.

2015 DRV Tradition 375KPS
2015 Chevy Duramax 3500HD LTZ Dually
Full-timers...Home is where we park it.
Check out our blog: Living Our Dream
paz is offline   Reply With Quote
Old 12-23-2009, 09:27 PM   #3
Senior Member
Jackm's Avatar
Workhorse Chassis Owner
Join Date: Nov 2005
Posts: 627
This the text from a recent Information Bulletin from HWH that was issued on April, 2009:

Diagnostics-slow or non-retracting jacks:
"If a jack will not retract or is slow to retract, the problem is the jack, solenoid valve, velocity valve (if so equipped), or the hose. Slowly remove the hose from the jack. If the jack does not retract properly, replace the jack. If the jack starts to retract properly, tighten the hose and loosen the hose at the manifold. If the jack does not retract, there is a problem with the hose, such as a kink. If the jack retracts and the manifold is equipped with a velocity valve, the velocity valve is most likely the problem. If there is no velocity valve, there may be a problem with the solenoid valve or possibly the outer check valve. Contact HWH technical service."
2004 Winnebago Brave 34D with the usual add-ons
Jackm 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
Leveling jack problem BigRedLancer Winnebago Industries Owner's Forum 4 05-05-2009 09:34 PM
Kwikee Jack Problem rick_od Winnebago Industries Owner's Forum 4 08-09-2008 10:11 AM
HWH Leveling Jack won't extend Old Snipe Winnebago Industries Owner's Forum 6 07-31-2008 04:24 PM
Power Gear Jack Problem max49 MH-General Discussions & Problems 10 10-21-2005 04:38 PM
'05 Pace Arrow 37C Atwood jack problem Fyr Guy Fleetwood Products Owner's Forum 0 07-18-2005 03:42 AM

» Virginia Campgrounds

Reviews provided by

Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities

Copyright 2002-2015 Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 12:37 PM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, vBulletin Solutions, Inc.