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Feel braking when driving - Brake Servo Vaccum Pipe??
Posted: Thu Oct 13, 2022 8:53 am
by faulkner1213
Hi,
Recently my 6c polo gt has developed a fault. Commonly when driving it will feel like a light dabbing of the breaks with no loss of revs but obviously a loss of power.
Ive notice the rubber seal where the brake servo pipe and vaccum pipe join isn’t very tight together to the point where i can lift it a little and hear a hiss.
Is this most likely my issue?

- D7F6D48C-9CBF-4A6E-8459-6B13AA533BEF.jpeg (2.95 MiB) Viewed 800 times
Re: Feel braking when driving - Brake Servo Vaccum Pipe??
Posted: Thu Oct 13, 2022 11:18 am
by RUM4MO
I take it that you do know that if you brake while your foot is pressing the accelerator, the car's ECU "sees" that the brake pedal has been depressed and so cuts back the throttle pedal input. Apart from anything else, that will be a safety issue.
That vacuum pipe joining point looks nasty though I must say.
Re: Feel braking when driving - Brake Servo Vaccum Pipe??
Posted: Thu Oct 13, 2022 11:36 am
by iichel
Looks like the vacuum pipe isn't even properly seated in the connection?
Re: Feel braking when driving - Brake Servo Vaccum Pipe??
Posted: Thu Oct 13, 2022 3:54 pm
by faulkner1213
RUM4MO wrote: Thu Oct 13, 2022 11:18 am
I take it that you do know that if you brake while your foot is pressing the accelerator, the car's ECU "sees" that the brake pedal has been depressed and so cuts back the throttle pedal input. Apart from anything else, that will be a safety issue.
That vacuum pipe joining point looks nasty though I must say.
Obviously but who does that. Yes its not seated well it will be having new hoses.
Re: Feel braking when driving - Brake Servo Vaccum Pipe??
Posted: Thu Oct 13, 2022 3:58 pm
by faulkner1213
iichel wrote: Thu Oct 13, 2022 11:36 am
Looks like the vacuum pipe isn't even properly seated in the connection?
Any ideas on how to get it in there tighter it doesnt want to sit tight
Re: Feel braking when driving - Brake Servo Vaccum Pipe??
Posted: Thu Oct 13, 2022 4:27 pm
by iichel
If it's damaged - replace it.
Re: Feel braking when driving - Brake Servo Vaccum Pipe??
Posted: Fri Oct 14, 2022 1:05 pm
by RUM4MO
faulkner1213 wrote: Thu Oct 13, 2022 3:54 pm
RUM4MO wrote: Thu Oct 13, 2022 11:18 am
I take it that you do know that if you brake while your foot is pressing the accelerator, the car's ECU "sees" that the brake pedal has been depressed and so cuts back the throttle pedal input. Apart from anything else, that will be a safety issue.
That vacuum pipe joining point looks nasty though I must say.
Obviously but who does that. Yes its not seated well it will be having new hoses.
Well, sometimes the way that people describe their problem brings, what might seem annoying, responses!