Trailer Air Leak Repair
Trailer air leaks drain the brake system and can lock up the spring brakes. Finding and fixing them restores the trailer's air supply.
- AvailabilityCalls and messages 24/7
- WhereRoadside, yard or jobsite
- CategoryTrailer Repair
- On-site repairWhere feasible and safe
About trailer air leak repair.
Trailer air leaks drain the brake system and can lock up the spring brakes. Finding and fixing them restores the trailer's air supply.
A mobile mechanic can look at the unit where it stands, whether that is the roadside, a yard or a jobsite. That can avoid a tow and shorten downtime when the fault is suited to on-site work.
Part of Trailer Repair.
When you might need it.
Any of these is a good reason to call and describe what the unit is doing.
Audible air leaks
Trailer brakes won't release
Pressure drop when parked
Glad-hand or line damage
What the service involves.
Locating leaks at lines, valves and fittings
Replacing air lines, glad hands and valves
Retesting pressure retention
Checking brake release
Causes and good habits.
These are possibilities, not a diagnosis. The only way to know is to test the unit.
Possible causes
- Damaged glad hands or seals
- Cracked lines and fittings
- Failing valves or diaphragms
Practical tips
- Check glad-hand seals at every hook-up
- Walk the trailer and listen with pressure up
What to expect.
Do not move a trailer with unsafe air pressure.
On-site repair depends on the fault, parts, vehicle condition, safety and service feasibility.
(437) 601-8551Before you call
- Exact location, and direction of travel on a highway
- Truck or trailer type, make and year if known
- What happened and what warnings you see
- Whether the unit is somewhere safe
- A number we can call back
From the first call to the fix.
Call or message
Tell us where the unit is.
Describe the fault
Symptoms, lights, noises, leaks.
Agree the plan
Feasibility and dispatch, discussed honestly.
Diagnose and repair
On site where it is possible and safe.
Services that often go together.
Air Valve Replacement
Relay valves, protection valves and other air valves control how the brakes respond.
Trailer Brake Repair
Trailer brakes take a lot of abuse.
Air Leak Repair
Air leaks reduce brake performance and force the compressor to work harder.
Emergency Air Leak Repair
A major air leak can leave a truck or trailer unable to move safely.
Trailer Air Leak Repair by area.
Choose your community for local information.
Frequently asked questions.
Can you diagnose trailer air leaks?
Yes, leak diagnosis is part of the service where access allows.
How do I request this service?
Call (437) 601-8551 or message us on WhatsApp with your location and the issue. For non-urgent work, use the contact form.
Can every repair be done on site?
No. It depends on the fault, parts, vehicle condition, safety and feasibility.
Stranded on the Road? Let's Talk.
Tell us where your truck or trailer is located and what happened. Contact Fellows to discuss mobile repair options and next steps.
(437) 601-8551Have ready: exact location, truck or trailer type, what happened or what warnings you see, whether the unit is somewhere safe, and a callback number. Timing, dispatch and on-site repair depend on location, availability, the fault, parts and safety.