Carol Stream, IL · Mon–Fri, 9am–4:30pm
(630) 520-0103 service@bigrigfixer.com
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Big Rig Fixer technician performing air brake repair

Air Brake Repair

Keep Your Air Brakes in Top Condition

Expert air brake services to ensure your trucks and trailers operate safely and efficiently.

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Air Brake Diagnostics & Repair

We find and fix air leaks, faulty valves, weak chambers, out-of-adjustment brakes, and air-dryer/governor issues. Our technicians set proper pushrod travel, verify system pressure and release times, and keep your trucks and trailers safe and compliant.
Technician pressure testing air brakes for leaks

Don't Let Air Leaks Put You Out of Service

Slow air leaks, faulty spring brakes, or stuck valves can lead to brake imbalance and unsafe stops. Our technicians quickly locate and repair leaks, replace damaged chambers, and verify proper function of all components—from foot valve to trailer gladhands. We test build-up time, system pressure, and ensure you meet FMCSA brake performance standards.

Air Brake Service Advantages

  • Complete System Expertise

    Repairs for chambers, slack adjusters, S-cams, valves, air dryers, and governors.

  • DOT Compliance

    Adjustments and inspections to meet FMCSA requirements.

  • Leak Detection

    Pinpoint and repair leaks to maintain proper pressure and braking power.

  • Performance Testing

    Pushrod travel measurement and release timing verification for reliable stopping.

Describe the Air and Braking Symptoms

Slow pressure recovery, an audible leak, delayed release, and pulling during braking are different observations. Record when each occurs and identify the tractor and trailer involved. Tell us whether the concern began after brake work or a trailer connection. Leave pressure-system repair and adjustment to qualified personnel.

If stopping performance is compromised or a low-air warning appears, stop safely and follow the operator instructions. Do not perform a road test to recreate the problem. Contact us about the equipment’s location and service arrangements before assuming it can be driven to the shop.

  • Exact warning and gauge behavior
  • When a leak or delayed release occurs
  • Tractor/trailer IDs and recent repair records
Brake Warning-Sign Guide

Frequently Asked Questions

What causes air brakes to fail?
Air brake failure can result from various issues, including air leaks, improper brake adjustment, worn or damaged brake components, contaminated air lines, and overheating from excessive braking. Regular inspections and proper maintenance are crucial to prevent these failures and ensure reliable braking performance.
How often should air brakes be inspected?
Follow the equipment manufacturer’s inspection and maintenance requirements, applicable operating rules, and required driver checks. Report new symptoms promptly rather than waiting for a scheduled visit. There is no single four-month interval that applies to every air-braked vehicle.
How do I maintain my air brake system?
Follow the manufacturer’s schedule and have worn, leaking, or damaged components assessed by qualified personnel. Brake adjustment and repair require the correct training and procedures; do not adjust a system simply to hide a recurring symptom.

Brake Problems Can't Wait

Schedule your air brake diagnostic and get safe, balanced stopping power back before it costs you a roadside violation—or worse.

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