Brake Hose Leak
A brake hose leak loses hydraulic pressure at a wheel and can make the pedal soft or braking uneven.
Can I Drive?
stop-driving
Most Likely Causes
- 1
Cracked rubber hose
Age and flexing split the hose.
- 2
Rubbing damage
Hose contact with tire or suspension wears through.
- 3
Loose banjo bolt or copper washer
Caliper connection can seep.
- 4
Incorrect hose routing
Twisting stresses hose.
How to Diagnose It
- 1
Inspect hose with steering turned
Look for cracks, wetness, and rubbing.
Tool: Flashlight
- 2
Check caliper fitting
Look for wetness at banjo bolt or flare fitting.
Tool: Line wrench
- 3
Press pedal while inspecting safely
Leak may appear under pressure.
Tool: Helper
How to Fix It
Replace leaking hose
Install correct hose and routing.
Bleed affected circuit
Remove air and restore pedal.
Replace contaminated pads if fluid reached them
Brake fluid ruins friction material.
Mistakes to Avoid
- Do not reuse copper washers unless the procedure allows it.
- Do not twist brake hoses during installation.
- Do not drive with brake fluid on the tire or brake parts.