Soft Brake Pedal Diagnosis
A consistently soft brake pedal indicates a problem in the hydraulic brake system, likely due to air in the lines, a fluid leak, or a failing master cylinder. This reduces braking effectiveness and poses a safety risk.
Diagnosis Details
Possible Causes
Air in the brake lines (requires bleeding)
Brake fluid leak (at calipers, wheel cylinders, or lines)
Faulty master cylinder (internal bypass or worn seals)
Worn brake pads or shoes (excessive clearance)
Related OBD-II Codes
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What You Should Do
Check brake fluid level and condition.
Inspect for visible leaks around wheels, lines, and the master cylinder.
If fluid is low, top off and test.
If no leaks, bleed the brakes to remove air.
If pedal remains soft, replace the master cylinder.
Have a professional inspect the system immediately.
Related Repairs
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Disclaimer: This AI-generated diagnosis is for informational reference only. Always consult a qualified mechanic for an in-person inspection. AutOwner is not responsible for decisions made based on this information.
