How to Solve the Problem of Soft Brakes in Toyota Cars?
3 Answers
If the brake fluid's performance is poor, it can lead to insufficient friction between the brake pads and brake discs. Over time, the brake fluid lines may age and deteriorate. If the brake fluid is not replaced in a timely manner, it will contain excessive impurities and moisture, which can affect the transmission of braking force.
I’ve driven this Camry for six years, so I’m quite the expert on spongy brakes. Last time during maintenance, I mentioned the issue. The mechanic used a diagnostic tool to check the brake booster pressure and found it was 15% below the standard value—ended up replacing the whole unit. Felt like a new car afterward! The pedal went from mushy like stepping on cotton to firm like a spring, stopping solidly with just a light tap at red lights. I’d recommend checking your vacuum lines for leaks too—aging rubber can cause a hissing sound. Don’t skimp on brake fluid changes either; every two years is ideal. Excess moisture content makes the pedal feel vague. Before long trips, clean the iron dust from brake disc grooves—these small details seriously affect pedal feel.
Last week I took my Corolla to the 4S store for soft brake issues. The technician measured the four wheel cylinders with a pressure gauge and found the left rear wheel had significantly less braking force. Upon disassembly, we found the guide pins were completely rusted stuck, with brake pads worn down to just 3mm on one side. We replaced the full set of brake pads with anti-squeal paste, derusted the guide pins and applied special grease. Now the brakes feel particularly responsive during rush hour traffic - just light pressure delivers strong stopping power, unlike before when I had to stomp on the pedal. Three suggestions for female car owners: check dust boots for damage after rainy seasons, replace pads immediately upon hearing metal grinding sounds (don't wait until wear indicators are gone and rotors get damaged), and remember OEM brake pads may cost more but produce less dust that stains alloy wheels.