Jayco RV Owners Forum
 


Reply
 
Thread Tools Display Modes
 
Old 08-27-2016, 09:20 AM   #1
Senior Member
 
Join Date: Oct 2015
Location: Kalispell
Posts: 153
Self Braking?

My brother in law and I both have 2007 Dodge 2500s with 3rd gen. 5.9 Cummins. About a month ago we were returning from a joint trip with me following. Suddenly his speed decreased and I noticed a smell that did not seem to be coming from my vehicle. He later told me that his speed decreased and he was unable to maintain it regardless of how much he accelerated. This lasted perhaps 30 seconds then thing returned to normal. It happened again to him yesterday when he wasn't towing so the trailer is eliminated as being the problem. His research has turned up the possibility of his "hydroboost" going bad. Neither one of us has heard of this part. I've never had this problem he described, although he said that on the Cummins forum others mentioned it. Anyone familiar with this?

Thanks,
Jim
__________________

__________________
2017 Jayco Pinnacle 38FLSA
2007 Dodge Ram 2500 5.9 Diesel
mtdawg is offline   Reply With Quote
Old 08-27-2016, 09:47 AM   #2
Senior Member
 
ALJO's Avatar
 
Join Date: Oct 2014
Location: Sparwood, BC
Posts: 999
Send a message via Skype™ to ALJO
He's probably talking about the Turbo on the engine
__________________

__________________
2014 Ram 1500 CrewCab 4x4 5.7 Hemi 3.92 Rear and Air Lift 1000
2005 Jayco Jay Feather LGT - 29Y GVWR-7000 lbs.
Pro Series 1200 lbs. WDH with Double Sway Bar.
Champion 3100/2800 watt Inverter/Generator-Onboard Solar Power

ALJO 'Forever Young @ Heart' provide on their travels Music Entertainment to Senior Care Homes
ALJO is offline   Reply With Quote
Old 08-27-2016, 10:23 AM   #3
Senior Member
 
Join Date: Oct 2015
Location: Kalispell
Posts: 153
Quote:
Originally Posted by ALJO View Post
He's probably talking about the Turbo on the engine
After doing a little research I found out that the hydroboost is some type of device for the brake master cylinder. What I didn't find out was about the self-braking problem. It's an alternative to the vacuum boost and uses power steering fluid to assist the brakes. Who knew?
__________________
2017 Jayco Pinnacle 38FLSA
2007 Dodge Ram 2500 5.9 Diesel
mtdawg is offline   Reply With Quote
Old 08-27-2016, 10:28 AM   #4
Senior Member
 
Seann45's Avatar
 
Join Date: Jun 2010
Location: Saskatoon Sask Canada
Posts: 9,559
Since diesel engines do not have vacuum the power brakes need a way to get power.. this is done from a line from the power steering.. I would not think that is the problem. Maybe the computer sensed a power train fault and put the truck in "limp mode" then the fault cleared and things returned to normal.. Have the dealer with a proper scan tool check the codes..
__________________
Seann
2004 Chev Silverado Duramax optioned past the max. 2009 Jayco Eagle 308 RLS 765 watts of solar, 6-6 volt batteries (696 amp hour), 2000 watt (4000 surge) whole house inverter.
113 days boondocking in 2017
215/2016, 211/2015, 196/14, 247/13, 193/12

Seann45 is offline   Reply With Quote
Reply

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 05:55 AM.


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