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Re: Hard Brake Pedal
Posted by Saab Lunatic (more from Saab Lunatic) on Sat, 26 Sep 2009 05:12:34
In Reply to: Re: Hard Brake Pedal, Saabnutt, Fri, 25 Sep 2009 06:32:41
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Hi guys. thanks a lot for your suggestions,
There is a direct relationship between the vacuum on the boost gauge and the feel of the brake pedal.
After a cold start, the boost gauge at idle reads just under the normal air pressure line and the car idles at around 500rpm.The brake pedal is quite hard.
As the car warms up it idles lower down in the white section of the boost gauge and the brake pedal feel is a lot better.
I guess from this I will need to investigate the vacuum hose that runs from the inlet manifold to the boost gauge. It must have a crack in it somewhere as if it was off completely the boost gauge wouldn't work at all.
As the pedal feels a little firm overall compared to my previous C900's, I might also take up the suggestion to lubricate the brake pedal linkage and also change the brake fluid as it dosen't look as though it has been changed in a long while.
From past experience, if the brake fluid hasn't been changed for a long while, sometimes the seals in the master cylinder go as the dirt is the only thing holding them together!. I will have to keep an eye out for that!
Thanks a lot for your help
posted by 144.131.66...
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