Welcome, Guest. Please login or register.
Did you miss your activation email?
Sign in with Facebook Sign in with Twitter Sign in with Google Sign in with Linkedin Sign in with Microsoft

Hello! Welcome to the Ford and Volkswagen MPV / SUV Forums.
Dedicated forums for the Ford Galaxy, S-Max, C-Max, B-Max and Kuga.
User groups for the SEAT Alhambra, Volkswagen Sharan, Touran, Tiguan and Touareg!

Owners Forums for Ford and Volkswagen MPVs / SUVs

Ford Galaxy S-Max C-Max B-Max Tourneo Connect / Volkswagen Sharan Touran Tiguan Touareg Caravelle / SEAT Alhambra Alteca 

 Mk1 and Mk2 VW Sharan  Mk1 and Mk2 Ford Galaxy  Mk1 and Mk2 SEAT Alhambra  Ford C-Max B-Max  VW Tiguan  VW Touran  Mk3 Ford Galaxy  Mk3 VW Sharan  Mk3 SEAT Alhambra  VW T4 T5 Caravelle Transporter  Ford Tourneo Connect  VW Touareg

Advert:


Recent Forum Topics:

Google Translate:

Ford Galaxy / VW Sharan / SEAT Alhambra Forum:

Author Topic: 2nd Pump on Brake Pedal - Virtually NO BRAKES!  (Read 3097 times)

Offline Fraz-ktf

  • *
  • Posts: 176
  • Thanked: 4
  • Model: Galaxy Mk2
  • Spec: 05 Tdi Ghia 130
  • Region: Yorkshire
2nd Pump on Brake Pedal - Virtually NO BRAKES!
« on: November 09, 2014, 10:32:36 AM »
Hi.  I've had a scary issue with my brakes "Sometimes" having the feeling of "No Servo" almost - like you have to stand on the brakes to get any form of stopping power and even then, it's wholly inadequate.

I've recently narrowed it down to when it happens and I can now make it happen when I want.

If I'm driving along and I "Dab" the brake pedal, then immediately re-apply, that's when the "Failure" happens.  If I leave it a couple of seconds after the "Dab" then all is ok.  If I "Dab" then rev the engine then immediately brake, all is good.

any one got any ideas what the issue is?  I've just had the brakes bled to get rid of the issue but it still persists.

Thanks
2005/05 Galaxy Tdi 130 Ghia

Now with "Hot-bot, swivelling leather & working cinema screens"

Offline insanitybeard

  • Greetings from Mr Chick!
  • *
  • Posts: 2427
  • Thanked: 71
  • Model: Galaxy Mk2
  • Spec: '54 130ps TDI Ghia
  • First Name: Paul
  • Region: South West
  • Country: United Kingdom
Re: 2nd Pump on Brake Pedal - Virtually NO BRAKES!
« Reply #1 on: November 09, 2014, 11:17:25 AM »
Sounds like a loss or reduction of vacuum supply to the servo- does the pedal go hard when the fault occurs? Servo vacuum pipe split near the terminations would be a favourite to check first, take a read back of this thread.
Always learning..... Often by mistakes!

Offline Fraz-ktf

  • *
  • Posts: 176
  • Thanked: 4
  • Model: Galaxy Mk2
  • Spec: 05 Tdi Ghia 130
  • Region: Yorkshire
Re: 2nd Pump on Brake Pedal - Virtually NO BRAKES!
« Reply #2 on: November 09, 2014, 11:56:01 AM »
Sounds like a loss or reduction of vacuum supply to the servo- does the pedal go hard when the fault occurs? Servo vacuum pipe split near the terminations would be a favourite to check first, take a read back of this thread.
[/uote]

Yes, the pedal is very hard, like when there's no servo (Morris Minor style ;-) )

I had a read back at my old thread, as you suggested (I didn't realise there had been further answers)

Has anyone got any photos of where / what the terminations of the vaccum pipe look like as I can't see them from the descriptions  :-[
« Last Edit: November 09, 2014, 12:00:14 PM by Fraz-ktf »
2005/05 Galaxy Tdi 130 Ghia

Now with "Hot-bot, swivelling leather & working cinema screens"

Offline SiC

  • *
  • Posts: 29
  • Thanked: 0
  • Model: Galaxy Mk3
  • Spec: 2008 TDI 125 Zetec
  • Region: North West
Re: 2nd Pump on Brake Pedal - Virtually NO BRAKES!
« Reply #3 on: November 09, 2014, 12:00:53 PM »
I've had this on a 2001 alhambra, as Insantybeard said check the servo. In my case a vac pipe had popped off.

Offline insanitybeard

  • Greetings from Mr Chick!
  • *
  • Posts: 2427
  • Thanked: 71
  • Model: Galaxy Mk2
  • Spec: '54 130ps TDI Ghia
  • First Name: Paul
  • Region: South West
  • Country: United Kingdom
Re: 2nd Pump on Brake Pedal - Virtually NO BRAKES!
« Reply #4 on: November 09, 2014, 12:41:52 PM »
I've not got any pictures, but I believe number 1 on this parts diagram is the TDI vacuum (tandem) pump to servo pipe, the left hand termination goes into the servo (the hole to the lower right of the large circular drum shaped unit- number 3- in this diagram) and the right hand termination connects to the tandem pump (on the end of the cylinder head- number 1 here).
« Last Edit: November 09, 2014, 12:45:10 PM by insanitybeard »
Always learning..... Often by mistakes!

Online Chrispb

  • Mindsaysyesbodysaysnono
  • *
  • Posts: 3024
  • Thanked: 112
  • Model: Galaxy Mk2 Auto
  • Spec: 52reg TDI 115 Ghia
  • First Name: Chris
  • Region: South East
  • Country: United Kingdom
Re: 2nd Pump on Brake Pedal - Virtually NO BRAKES!
« Reply #5 on: November 09, 2014, 12:50:52 PM »
From my experience the connector on the back of the tandem pump is the most likely culprit also check the small vacuum connectors T'd to the large plastic pipe, one connector is usually blanked of with a cap which does perish the other is the vacuum supply to the boost valve's
2009 Kia Sedona GS In Black 2.9CRDI 183PS. 5 Speed Manual WAV.
2003 MK2 Galaxy Ghia In Solid Black 1.9 TDI 115PS. 5 Speed Automatic.

Upgraded Eberspächer booster heater  to independent heating with 7 day timer.

With VCDS lite (full version) need a code clearing or want to scan for faults in the north kent area, PM me.
All for a pint of Strongbow.

The FordMPV.com Forum - The free forum for questions and answers relating to the Ford Galaxy, S-Max and C-Max

 

Related Topics

  Subject / Started by Replies Latest
4 Replies
8150 Views
Latest April 21, 2013, 10:19:13 PM
by Chrispb
2 Replies
3007 Views
Latest December 20, 2013, 09:01:23 PM
by Loontoon
5 Replies
7843 Views
Latest April 19, 2014, 12:47:50 AM
by alial
1 Replies
1662 Views
Latest August 15, 2017, 10:07:42 AM
by johnnyroper
14 Replies
1238 Views
Latest July 25, 2018, 07:52:32 PM
by christiant
7 Replies
317 Views
Latest June 07, 2020, 12:28:11 PM
by johnnyroper

Advertisement:


SMF spam blocked by CleanTalk