1990 Honda CRX almost no brakes with pedal to the floor, pl

1990 HONDA CRX
200,000 MILES • 4 CYL • FWD • MANUAL
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HONDAC-REX
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when i hit the brakes my idle lowers and almost sounds like its stalling , i hear a releasing of air coming from behind the pedal, and its really tight and almost doesnt work. brake fluid is fine, and i checked all the lines for all 4 wheels. what else can i check?
Oct 4, 2010 at 12:10 PM
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HONDAMIKE
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Sounds like a bad vacuum brake booster (Brake master cylinder is bolted to it). The reason it wants to stall is that when you hit the brakes, your bad booster is causing a vacuum leak, which will lean out the air/fuel mixture (more air than fuel) and cause it to idle rough or even stall.

May 5, 2011 at 2:59 PM