Brake Booster Noises - Saab 900 Bulletin Board - Saabnet.com
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Brake Booster Noises
Posted by JD From LA (more from JD From LA) on Mon, 25 Nov 2002 19:26:59
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While swapping out the incredibly worn clutch pedal in my '83 900T (found an almost new one at the boneyard for five bucks), I worked on tracing the source of the hissing noise emanating from behind the dash.
Sure enough, it was the vacuum booster. I knew already because the noise stops when stepping on the brake. The noise also stops when I press my hand against the gaiter surrounding the master cylinder actuation rod under the dash.
The brake booster works properly and passes all brake booster tests. The pedal sinks slightly when starting like it should. Stepping on the brake brings no change in idle quality. The booster also provides proper power assist.
Do I need a new brake booster? Does the later style booster fit my '83?
Thanks in advance.
JD
posted by 209.178.13...
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