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revs rise when braking

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Old 12 February 2012 | 07:47 PM
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Default revs rise when braking

Guys
There is no mechanical issue with the car (well hope not) drives superb, stops excellent. What i have noticed is when i brake but only at slow speeds and i mean slow as in nearly to a halt and press the brake the revs sort or rise as if its stopping the endine stalling. Ive never noticed this in other cars ive owned . is it meant to do it? is it a subaru thing for what ever reason .
Any ideas.
cheers
Old 12 February 2012 | 07:53 PM
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I had something similar on an old vauxhall and it was a slight leak in a vacuum hose
Old 12 February 2012 | 07:55 PM
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That will be the idle speed valve compensating for the manifold pressure change, when you have braked. The servo works from inlet manifold vacuum.
Old 12 February 2012 | 09:03 PM
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Take off your shoes and try doing what ur doing bare footed, Im thinking along the lines of massive feet, like Bigfoot as W.t.f look it's a human cattamaran as in twin hulled vessel!what size of feet do have anyway? Maybe one foot covers two pedals, so i think that as you brake the humoungous foot also catches the accelerator pedal is my answer to your query😃
Old 12 February 2012 | 09:32 PM
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Originally Posted by Ballyscoob
Take off your shoes and try doing what ur doing bare footed, Im thinking along the lines of massive feet, like Bigfoot as W.t.f look it's a human cattamaran as in twin hulled vessel!what size of feet do have anyway? Maybe one foot covers two pedals, so i think that as you brake the humoungous foot also catches the accelerator pedal is my answer to your query��
Derrrr wonder why i didnt think of that !!!!! really....
Old 12 February 2012 | 10:47 PM
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Take off your shoes and try doing what ur doing bare footed, Im thinking along the lines of massive feet, like Bigfoot as W.t.f look it's a human cattamaran as in twin hulled vessel!what size of feet do have anyway? Maybe one foot covers two pedals, so i think that as you brake the humoungous foot also catches the accelerator pedal is my answer to your query😃
Old 12 February 2012 | 10:50 PM
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sounds like the brake servo is leaking that will increase the revs as u press the peddle due to the vacume leak.
Jay
Old 12 February 2012 | 11:41 PM
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Take off your shoes and try doing what ur doing bare footed, Im thinking along the lines of massive feet, like Bigfoot as W.t.f look it's a human cattamaran as in twin hulled vessel!what size of feet do have anyway? Maybe one foot covers two pedals, so i think that as you brake the humoungous foot also catches the accelerator pedal is my answer to your query😃
Old 13 February 2012 | 12:55 AM
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Ave you had a few mate ?
Old 13 February 2012 | 12:32 PM
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Originally Posted by hairdye
Derrrr wonder why i didnt think of that !!!!! really....
Ha,ha....You should have posted that reply 3 times!

JohnD
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