Jayco RV Owners Forum

Thread Tools Display Modes
Old 12-16-2014, 10:44 AM   #1
Senior Member
Plowtoy's Avatar
Join Date: Aug 2013
Location: Hamilton, MI
Posts: 430
Class A F53 (Ford Chassis) brake question

Trying to help my buddy figure out his Class A brake system. First off, I have been on him about replacing his rear brake pads (have been metal to metal for a while now). He only puts about 200-400 miles a year on this motorhome, but has devoloped another problem with the brakes he's not sure how to fix.
Apparently, back in the late 90's (his is a 99), the F53 chassis had the hydro-boost along with an electric booster for braking. He said that this past summer, he lost the electric part while the engine is running, but it works fine if the key is on, and the engine is off. I am an ASE certified mechanic and know pleanty about braking systems, but ive never heard of an electric booster.
Is this (the electric booster not working) a common problem? or do you think its directly related to the metal on metal brakes? (some kind of sensor?)
Any positive feed back would be appreciated, Dave

'97 Jayco Eagle 314BHS

'03 Tahoe LT 5.3L
Plowtoy is offline   Reply With Quote
Old 12-16-2014, 10:52 AM   #2
Senior Member
SMS1115's Avatar
Join Date: Feb 2014
Location: Fuquay-Varina
Posts: 432
From my knowledge, the electric booster is only there to assist if the hydrobooster is not applying pressure to the brakes. ie- engine stall, low fluid in the hydro system, etc... I have worked on a few church school buses and had to do a lot of research on the hydroboost systems. RV systems maybe different, but I doubt it. So, if all is well, the electroboost part should not come on unless there is a problem with the hydroside.
2008 Jay Flight G2 29BHS
2017 Chevrolet Silverado 2500HD Z71
SMS1115 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 07:17 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.