bm1139 Posted July 10, 2007 Share Posted July 10, 2007 guys...my ls's brake has suddenly gone stiff follow by a weak hissing from the driver's side air-con vent(my's a Rh drive), brake-travel almost limited and braking power close to none.have search the forums and i suspect the brake booster is the culprit.(with engine off ,pushing the brake pedal still feels stiff and pumping it shows no different in travel but no loss of brake fluid)could the hose going into the booster be the cause?would bleeding the braking system solve the problem?could it be a stuck calliper?brake master cyclinder faulty as well? as i intend to rectify the problem myself, anyone with simillar issues please advise.thanking in advance n cheers. Quote Link to comment Share on other sites More sharing options...
mastertech Posted July 21, 2007 Share Posted July 21, 2007 if it really hard and you hear a hiss, I'm 99% sure your brake booster is junk... Quote Link to comment Share on other sites More sharing options...
zigenfiver Posted August 3, 2007 Share Posted August 3, 2007 I knew a guy who put power steering fluid in his brake fluid resivour, and cause the rear brakes to stick. The problem was the proportioning valve got clogged up, he replaced that and everything worked fine. Quote Link to comment Share on other sites More sharing options...
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