How Does The Demco SBS Work On A Vehicle With An Electric Master Cylinders Without Vacuum Assistance
Question:
I have new 2021 chevy silverado with electric master cyl how does this work with out vacuum assistance
asked by: Bill S
Expert Reply:
I contacted the manufacturer in regards to the Demco SBS Air Force One # SM99243, and they explained that the reason they tap into the vacuum system of a vacuum brake booster is that their system creates vacuum and they can keep the power brake booster active during tow. If your vehicle does not have a vacuum brake booster they make adjustments with the operating unit, for hydro boost systems they block off the vacuum port and the exhaust port of the unit. For electric assist units, it depends on what the manufacture of the vehicle is doing with the battery connection, and this is addressed in the manual.
Product Page this Question was Asked From
Demco Air Force One Flat Tow Brake System for RVs w/ Air Brakes - Proportional
- Tow Bar Braking Systems
- Brake Systems
- Proportional System
- One Time Set-Up
- Fixed System
- Power Assist Brake Compatible
- Air Brakes
- Demco
more information >
Featured Help Information
Instructions
Miscellaneous Media
Continue Researching
- Shop: Vehicle Tow Bar Brake System
- Shop: Demco Air Force One Flat Tow Brake System for RVs w/ Air Brakes - Proportional
- Shop: Vehicle Tow Bar Wiring
- Shop: Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit
- Shop: Base Plate for Tow Bar
- Shop: Roadmaster Crossbar-Style Base Plate Kit - Removable Arms
- Search Results: 1185~1
- Search Results: tow bars
- Shop: Replacement Quick Disconnect Crossbar Assembly for Roadmaster Tow Bars
- Search Results: braking systems
- Search Results: sm99945
- Shop: Roadmaster High Low Adapter for Tow Bars - 2-1/2" Hitches - 4" Rise/Drop - 10K GTW
- Shop: Demco Wireless Coachlink Braking Monitor for Flat Tow Brake Systems
- Shop: Demco Battery Disconnect Switch
- Video: Roadmaster Tow Bars 910021-00 Review
- Video: Demco Battery Disconnect Switch Review
- Video: Roadmaster Nighthawk All Terrain Tow Bar Installation - 2022 Ford Ranger
- Video: Roadmaster Nighthawk All Terrain Tow Bar Installation - 2017 Jeep Grand Cherokee
- Video: Roadmaster Tow Bars - Hitch Mount Style - RM-676 Review
- Q&A: Does the Air Force One Activate the Towed Vehicles Brakes When the Exhaust Brake Is Used
- Search Results: roadmaster tow bar
- Video: etrailer SD Non-Binding Tow Bar Installation - 2020 Chevrolet Equinox
- Video: Demco SBS Wireless Coachlink Installation - 2019 Newmar Ventana Motorhome
- Search Results: air force one
- Search Results: rm~048~4
- Shop: Floor Mats
- Article: How to Choose the Right Trailer Hitch Class
- Article: Roadmaster Vehicle Specific Base Plates
- Shop: Trailer Hitch
- Shop: Trailer Wiring
on Tow Bar Braking Systems
