Hissing when on brakes
#1
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Hissing when on brakes
I started my '90 CRX the other morning and heard a weird noise from the engine bay. When I took my foot off the brake it stopped. When I step on the brakes normal I hear no noise, but when I push the pedal as far as I can you can hear a hissing noise and the motor struggles to idle. I think I might have a leak in my brake booster and am losing engine vacume. My worry is if I have to slam on the brakes will they work or give out? So far normal braking works just fine. I hope to change to Integra all wheel disc by summer, including changing the booster and master cylinder. Can I hold out on repair until then? Could this be something other than a booster?
#2
Re: Hissing when on brakes (Double Agent)
its probably your booster like you said. if it fails completely your brakes wont stop working but it will be really hard to stop due to the lack of vacuum assist. i would change it sooner than later.
#3
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Re: Hissing when on brakes (Double Agent)
yeah, its a vacuum leak. but it may not be the booster itself that is leaking. might be the check valve.
i wouldnt worry about your brakes "going out" if its a vacuum issue. if the booster fails, itll just make braking harder to do, but not change ultimately the force of your brakes. the booster is just a pneumatic assistant.
i wouldnt worry about your brakes "going out" if its a vacuum issue. if the booster fails, itll just make braking harder to do, but not change ultimately the force of your brakes. the booster is just a pneumatic assistant.
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Re: Hissing when on brakes (Tyson)
sounds like a vacuum issue. I had the same problem with mine! but mine wasnt slow, it happened quite rapidly. I was on my way home from work and i hit the brakes at a red light and heard a loud hissing sound and at he same time my foot went to the floor. should b an easy fix 4 ya. good luck
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