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Brake pedal feel
https://auszookers.com/forum/viewtopic.php?f=5&t=31608
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Author:  sogone [ Mon Apr 02, 2012 2:17 pm ]
Post subject:  Brake pedal feel

In my green Zook, 94 WT with baleno coil pack motor the brakes do funny things. When the car is turned off the brake pedal feels nice and tight. Exactly how it should be. However web the car has revs up the brake pedal becomes soft.

Brakes are bled, baleno booster hose goes to the booster. What other things could it be? Stuffed master? Once it's idling brake pedal comes back. Turn it off it's nice an hard and tight again.

It still brakes fine without any dramas. Just goes a bit squishy.

Author:  jdk81 [ Mon Apr 02, 2012 4:00 pm ]
Post subject:  Re: Brake pedal feel

That sounds like the brake booster functioning correctly and making the pedal easier to push.

Author:  want33s [ Mon Apr 02, 2012 7:12 pm ]
Post subject:  Re: Brake pedal feel

Get in the car and pump the pedal till it is HARD. If this takes more than 2 pumps there are other problems.

Hold the pedal down and start the engine..... If the pedal sinks just a bit more the booster is working, if the pedal doesn't move upon starting engine, the booster is stuffed or not working..
I've seen PCV's installed backwards do similar things.

Author:  jdk81 [ Thu Apr 05, 2012 8:50 pm ]
Post subject:  Re: Brake pedal feel

What was the result of this?
Genuine problem, or did it belong in the noob section?

Author:  sogone [ Fri Apr 06, 2012 7:29 am ]
Post subject:  Re: Brake pedal feel

Boosters playing up. I have another one there I'll swap in.

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