Detect Brake Line Corrosion After Vehicle Storage

Cost Savings

Checklist Tasks

• Inspect exposed brake lines for rust, especially at bends and brackets where moisture sits.
• Use a flashlight and mirror to check upper brake line surfaces for hidden corrosion.
• Flex rubber brake hoses gently to find cracks or stiffness from ozone exposure.
• Clean brake lines with a wire brush to reveal deeper rust hidden by surface dirt.
• Check for dampness or seepage at fittings to find pinhole leaks from internal rust.
• Tap metal lines lightly with a plastic tool; dull sounds may reveal weak spots.
• Check underbody shields and wheel wells for debris or salt that speeds up corrosion.
• Examine master cylinder and ABS connections for green or white corrosion deposits.
• Test brake pedal firmness after starting; a sinking pedal indicates internal line failure.
• Look for swelling or bubbling under coatings as early signs of hidden corrosion.
• Check mounting clips and brackets for rust that could chafe lines and cause leaks.
• Document findings with photos before and after cleaning to track changes for records.