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VXOC Astra-J/GTC › Astra-J/GTC Section › Astra-J/GTC Technical › Mechanical
Brake pedal creep

VXOC Astra-J/GTC › Astra-J/GTC Section › Astra-J/GTC Technical › Mechanical
Brake pedal creep

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pedal creep brake

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Brake pedal creep
Kippermcflipper
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#1
6:th-May-2017, 15:07:27
Just a query those of you with a diesel astra j (mine is a 2.0 auto) have you noticed brake pedal creep where if you sit with the engine running - press the pedal down hard and constantly - do you find slowly the pedal drops to the floor?

I have heard all about vacuum depletion of diesels but as I have never seen this before I was wondering if this was a common characteristic of these cars or I have a servo/ master cylinder problem
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Rusty2009
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#2
6:th-May-2017, 16:19:53
Can't say I've noticed on mine


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Kippermcflipper
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#3
7:th-May-2017, 10:42:19
(6:th-May-2017, 16:19:53)Rusty2009 Wrote: Can't say I've noticed on mine


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Hmmmm sounds like an expensive bill coming my way. It's interesting as some people have complained of this on the insignia

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vocky
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#4
8:th-May-2017, 07:46:54
probably caused by a small vacuum leak in the servo system
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Big Dave2
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#5
8:th-May-2017, 11:00:51 (This post was last modified: 8:th-May-2017, 11:02:46 by Big Dave2.)
(6:th-May-2017, 15:07:27)Kippermcflipper Wrote: Just a query those of you with a diesel astra j (mine is a 2.0 auto) have you noticed brake pedal creep where if you sit with the engine running - press the pedal down hard and constantly - do you find slowly the pedal drops to the floor?

I have heard all about vacuum depletion of diesels but as I have never seen this before I was wondering if this was a common characteristic of these cars or I have a servo/ master cylinder problem

Pedal creep is normal with diesel cars. My 2.0 CDTi also does it.

http://newtyresquick.blogspot.co.uk/2013...creep.html
http://www.brakesint.co.uk/technical.html#techNote202
http://www.nbsbrakesupplies.com.au/techn...edals.html

With the engine off, and the brake pedal pressed a few times, it should then be solid and not creep to the floor if all is ok.
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Kippermcflipper
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#6
12:th-May-2017, 21:08:11
So quite right - the dealer checked it over said it was normal. Apparently it is due to excessive vacuum pulling the pedal down and you'd never have this type of effect in real life. Thanks to all for the responses. Apparently it's apparent on all vauxhall cars since like 2005 odd.

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