Brake Pedal / Servo Operation

Rom

Advanced Member
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1,742
Can some of you guys tell me how your pedal reacts compared to mine please.

If I switch off car, with pedal depressed, it raises itself, as if the abs pump is forcing it back up. This is every time, Ive repeated it to confirm.

If i switch off the car, there is no servo assistance, instantly. The pedal is really hard to push, brakes feel junk. To the extent i stalled it reversing up a really steep incline in a car park, and almost didnt stop it from rolling into a car!

Generally a servo will hold enough vacuum to give a normal pedal feel for a couple of pumps. So this is either related to the first question, or my servo could be duff.
Over the few months ive had it, im sure ive felt other random pedal twitches in normal driving / braking, but never enough to replicate, and always tiny enough to make me question if i did feel it.
 
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