 Potential Brake Failure?, Loss of brake pedal position |
|
|
|
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG.
This site is not affiliated with Porsche in any way. Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners. |
|
|
  |
| rbzymek |
 Jul 23 2026, 02:14 PM
Post
#1
|
|
Member  Group: Members Posts: 202 Joined: 5-April 19 From: Northville, MI Member No.: 23,013 Region Association: Upper MidWest 
 |
I was hoping for some direction to correct a brake issue. While driving last week my right foot was resting on the brake pedal and then it started moving down! The brakes still worked but the pedal was way lower than design position. I pulled over immediately and had the car towed home. I installed a new master cylinder 7 years ago (about 13,000 miles) from 914Rubber (not uro). All four corners were rebuilt by PMB. New flex hoses and pads were also installed. Brakes have been working fine prior to this hiccup. Fluid resevior was full and no leaks detected.
So I suspect the M/C but are there any other possibilities? Thanks in advance! |
   |
 
|
| bkrantz |
Jul 23 2026, 07:48 PM
Post
#2
|
|
914 Guru Group: Members Posts: 8,741 Joined: 3-August 19 From: SW Colorado Member No.: 23,343 Region Association: Rocky Mountains
|
If truly no leaks and no fluid loss it might likely be a problem in the MC.
|
 |
|
| emerygt350 |
Jul 23 2026, 08:06 PM
Post
#3
|
|
Advanced Member Group: Members Posts: 3,676 Joined: 20-July 21 From: Upstate, NY Member No.: 25,740 Region Association: North East States |
The only other thing would be a sudden change in the rear brake adjusters which seems impossible.... What happens when you pull the parking brake? Does the pedal travel decrease?
|
|
|
|
|
9 User(s) are reading this topic (7 Guests and 0 Anonymous Users)
2 Members: Ninja, emerygt350
|
Lo-Fi Version | Time is now: 23rd July 2026 - 08:21 PM |
Invision Power Board
v9.1.4 © 2026 IPS, Inc.