Brakes feel weak, poor stopping power

Symptoms

• Longer stopping distance than normal
• Pedal may feel firm, not necessarily soft
• No specific noise required to notice this

Likely causes

• CommonWorn brake pads with reduced friction material leftAs pads thin out, they generate less stopping force even before fully wearing through.
• CommonGlazed rotors or pads from repeated overheatingA hardened, glassy surface reduces friction between pad and rotor.
• PossibleContaminated pads from oil, grease, or brake fluidAny contamination on the friction surface significantly reduces grip.
• PossibleBoiled brake fluid from age or a long, hard descentOverheated fluid can develop vapor bubbles that soften pedal feel and reduce power.
• Less commonWrong or low-quality replacement pads for the vehicleSome pad compounds simply aren't aggressive enough for a given vehicle and driving style.

What to do

1. Check brake pad thickness through the wheel spokes if visible.
2. Note if this started after a long, hard descent or repeated heavy braking, which can point to overheated fluid or glazed pads.
3. Check the brake fluid reservoir level and general fluid age.
4. Avoid situations requiring hard stops (like highway merges) until this is checked.
5. Have a mechanic inspect pad and rotor condition for glazing or contamination.
6. Have pads and/or fluid replaced as needed, and have the fluid flushed if it hasn't been done in a few years.

Tools and parts

When to call a pro

See a mechanic to check pad, rotor, and fluid condition, since weak brakes can have several different underlying causes.

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