Jayco RV Owners Forum

Thread Tools Display Modes
Old 08-27-2015, 06:39 PM   #11
Junior Member
Join Date: Aug 2015
Location: Duluth
Posts: 22
I emailed Jayco yesterday and told them I am considering ordering a new Greyhawk and asked about the vibration issue as well as the tank less hot water issue and what they were doing to address these problems.
Also asked to be informed of any other engineering design changes.

The Forest River owners forum sounds like they have the same issue with the vibration over there.

Up North is offline   Reply With Quote
Old 08-28-2015, 06:36 AM   #12
Senior Member
Join Date: Jun 2015
Location: Jackson
Posts: 1,037
I posted all about this is issue in a earlier thread. I ended up with a 2015 Greyhawk because I didn't what to deal with it and DW liked the color scheme better.

For the record the chassis was also a 2016. With the 6 speed.

Currently between RV's, and it might stay that way !
2017 F-150 XLT 3.5 EcoBoost 10 Speed SCREW Short Bed 3.55 rear axle - 1818 lbs payload
Sold: 2015 Greyhawk 29MV, 2014 Jayco X17z, 2012 Jay Series 1207

Jopopsy is offline   Reply With Quote
Old 08-28-2015, 03:27 PM   #13
Junior Member
Join Date: Aug 2015
Location: Payson
Posts: 17
As far as I am concerned I don't think it takes this long to find the vibration problem.

I know for a fact it has been well over a month this problem has been known about, I think it is more of a question maybe between Jayco and Ford over who is going to pay for what on what has been built already.

If say just 20 motor homes have been sold with the problem thats 20 motor homes that might need a very expensive fix, or to be bought back.
vagabond 1 is offline   Reply With Quote
Old 08-28-2015, 04:19 PM   #14
Senior Member
Plowtoy's Avatar
Join Date: Aug 2013
Location: Hamilton, MI
Posts: 430
It will be interesting to see what comes of the vibration issue. Although I don't have a lot of knowledge in the MH side of a cutaway, I do know the E-series cutaways better than most. These chassis are used to build the busses I work on. Ive noticed a vibration in some of our vehicles, but will say its only the extended wheel base vehicles. A lot goes into extending the wheel base, including cutting a perfectly good frame, lots of welding, balancing the additional lengths of drive shaft, and fine tuning driveline angle (which im sure the last two is where the vibration is from). Ford does authorize those modifications to shops that meet their QVM requirements.
'97 Jayco Eagle 314BHS

'03 Tahoe LT 5.3L
Plowtoy is offline   Reply With Quote
Old 08-28-2015, 05:48 PM   #15
Junior Member
Join Date: Aug 2015
Location: Duluth
Posts: 22
Originally Posted by vagabond 1 View Post
I talked to Jayco yesterday and was told that the 2016 Greyhawk will have a new tankless hot water system and not a hot water tank.
Are they going to a different tank less heater from the Girard or didn't they specify?
Up North is offline   Reply With Quote
Old 08-28-2015, 07:35 PM   #16
Junior Member
Join Date: Aug 2015
Location: Payson
Posts: 17
It was in the 2016 Greyhawk specs in the Jayco Home papge so I asked and all i was told was the new tankless water heater was from a different company.

But from what i know the vibration is only in the 2016's the older Jaycos of the same length do not have the vibration problem, so why did it start this year?
vagabond 1 is offline   Reply With Quote
Old 08-30-2015, 10:07 AM   #17
Senior Member
The Logans's Avatar
Join Date: May 2014
Location: Ona
Posts: 629
When I researched tank-less water heaters for the house, I found out why they are so expensive, and why the don't work well on a RV.

There is a computer that monitors 3 parameters: the input water temperature, the input water pressure, and the rate/volume of the water flow. The systems on the RV's don't do this, and thus the problems. A sudden change in any or all of those parameters can result in getting scalded.

Home systems run on 120v only, at high amperage, and are far more sophisticated. The tech who explained it all to me said that the systems available for RV's just aren't quite ready for that application as yet.
The Logan's
2018 Jayco Alante 31v
Me, Dear Wife,
2 Bluetick Hounds
1 Newfoundland
1 Newfoundland / Black Lab Mix
1 Cairn Terrier
The Logans is online now   Reply With Quote
Old 08-30-2015, 12:18 PM   #18
Junior Member
Join Date: Aug 2015
Location: Payson
Posts: 17
What you say Mr. Logan is correct. I did a little checking into a home unit about 4 or 5 years ago and yes there were quiet a few items that had to be perfect for it to work correctly.
vagabond 1 is offline   Reply With Quote
Old 08-30-2015, 01:55 PM   #19
Senior Member
BigJohnD's Avatar
Join Date: Nov 2014
Location: Florien, LA
Posts: 1,709
Not all home systems run on 120v. Ours was a Noritz CNG unit, but the ignition was 120v. The electric ones drew too much power. We went with CNG as they use minimal gas, plus being able to use it in hurricanes with only the small 120v draw for ignition. I have no experience with the Truma tankless water heaters, but I think they're one worth watching, and appear to be far superior to Girard, Atwood, or any of the other ones that are problematic. I know Fleetwood starting using the Truma units. Hadn't seen too many bad reviews on them yet.
Truma AquaGoģ provides instant hot water while on the road
John and Rebecca Dickson
Emma-9 / Little John-6 / Iva-2
2013 Ford F-350 Lariat FX4, CC LB PSD, DRW
2015 Jayco Jay Flight 28BHBE (#8)
BigJohnD is offline   Reply With Quote
Old 08-30-2015, 05:42 PM   #20
Senior Member
Join Date: Dec 2014
Location: North Central Texas
Posts: 382
Just happened to be looking at CW catalog and Suburban has an on demand heater that "monitors" inlet water temp, flow GPM, outgoing water temp and flow GPM. Sounds like that's closer to the residential systems. Curious to see what Jayco uses.


2015 Jayco Seneca 36 FK
2016 Jeep Wrangler Unlimited tow
2010 Tiffin RED 36 QSA - gone
2011 Monaco Monarch class A - gone
WaltW is offline   Reply With Quote

Thread Tools
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

» Virginia State Campgrounds

Reviews provided by

Powered by vBadvanced CMPS v3.2.3

All times are GMT -6. The time now is 06:58 PM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Copyright 2002-2016 Social Knowledge, LLC All Rights Reserved.