24/7 Air Brake & DOT Repair | Mobile Truck Service NE Ohio | GTS
Dispatching 24/7 across NE Ohio · Call (216) 200-8430
(216) 200-8430
Service · Air Brake & DOT · 24/7

Air Brake & DOT
Repair Before the
Scale Sees It.

Mobile air brake and DOT compliance repair across Northeast Ohio. Air leaks, chambers, slack adjusters, dryers, governors — fixed on-scene so you don't roll into a scale with out-of-service violations waiting to happen. 24/7, no voicemail.

Call (216) 200-8430 Text Your Location
★★★★★ 5.0 on Google
FMCSA Compliant Repair
60–90 Min On-Scene
§393.45FMCSR Standard
20% MAXDOT Brake Defect Rule
CHAMBERSStocked On Trucks
24/7365 Days
What This Is

The repair that keeps you out of out-of-service.

A 4-PSI air leak doesn't stop your truck. But it'll park you for a week the moment a DOT inspector hears it. Same for a stuck slack adjuster, a corroded chamber, a leaky glad hand, or a wet-tank governor that's stuck firing high. These aren't breakdowns — they're compliance time bombs.

GTS dispatches mobile air-brake mechanics across Northeast Ohio specifically for these calls. We arrive with the diagnostic ears (literally), the air pressure gauges, the leak detection equipment, and the common parts on the truck. Most fixes complete in 60–90 minutes on-scene — before you ever roll across a scale.

Need it before a DOT inspection at a scale in Cleveland, Akron, or the Youngstown / PA line? Call before you cross the scale, not after. We can typically meet you at a truck stop or rest area within an hour.

Diesel mechanic performing air brake system repair on a heavy-duty truck
FMCSA-Compliant Repair
What We Fix

Every air-system component that puts a truck out-of-service.

Our service trucks carry the parts, gauges, and leak-detection tools for the air-brake faults that actually get trucks flagged at scales and roadside inspections.

01

Air leak detection & repair

Trace and seal leaks across the air system — tank, supply lines, control lines, glad hand seals. Most leaks under 4 PSI/min get fixed on-scene without parts.

45–90 min
02

Brake chamber replacement

Type 20, 24, and 30 chambers carried on every truck. Diaphragm tears, ruptured cans, mismatched stroke — replaced on-scene with proper push-rod adjustment.

60–90 min
03

Slack adjuster service

Manual and automatic slack adjusters — replace, adjust, or troubleshoot. Includes stuck cams, frozen S-cam bushings, and adjuster pawls. DOT stroke-length compliant.

60–90 min
04

Air dryer replacement

Bendix and Meritor air dryer cartridges in stock. Failed purge valves, wet contaminated air, governor coupling issues — diagnosed and repaired on-scene.

60–90 min
05

Governor & compressor faults

Air pressure cut-out / cut-in calibration, governor unloader valve, compressor discharge faults. Verify proper 120/150 PSI range before we leave.

45–90 min
06

Glad hand & air line repair

Cracked glad hand seals, leaking quick-disconnect couplers, damaged air lines — service truck, trailer, and inter-axle connections.

30–60 min
07

ABS fault diagnosis

ABS warning light diagnosis — wheel speed sensor faults, ECU codes, modulator valve failures, exciter ring damage. Bendix and WABCO platforms.

45–90 min
08

Air spring & suspension

Failed air bag / air spring on tractor or trailer suspension. Common Hendrickson and Holland systems carried in service truck inventory.

60–90 min
09

Pre-DOT inspection prep

Full pre-inspection walk-around — we check the items DOT actually inspects: brake stroke length, chamber condition, hose chafing, lighting, leak rate. Fix anything found.

60–120 min
10

Brake stroke measurement

Measure applied brake stroke on every wheel to verify DOT compliance (under 2" on Type 30 chambers). Adjust or repair to spec before the scale catches it.

30–45 min
11

Parking brake & spring brake

Stuck spring brakes, failed parking valves, MV-3 (yellow knob) issues, anti-compounding valve faults — on-scene diagnosis and repair.

45–90 min
12

Post-violation repair

Already got a roadside violation and need it fixed to roll? We document the repair on the invoice for your DataQ challenge and DOT compliance records.

Varies
DOT Violations We Prevent

The 6 air-brake defects that put trucks out-of-service.

The North American Standard Out-of-Service Criteria is unambiguous: if more than 20% of the brakes on your vehicle are defective, you're parked. The CVSA inspector won't argue, won't negotiate, won't wait for a tow.

Most out-of-service brake violations are preventable — if you catch them before the scale does. These are the six conditions that flag a truck during a Level I inspection. Every one of them is a routine fix for our techs.

  • FMCSR §393.45 — Brake system condition (federal standard for all air-brake systems)
  • CVSA OOS Criteria Part II — Brakes (the 20% defect rule)
  • 49 CFR §393.47 — Brake chamber and adjustment requirements
  • Average shop wait: 24–72 hours for in-stock parts and bay availability
  • Our average: 60–90 minutes on-scene, you keep rolling
01
Audible air leak at any brake chamber Any leak you can hear = automatic out-of-service
OOS
02
Brake stroke exceeding adjustment limit Type 30: over 2" applied stroke
OOS
03
Cracked, broken, or missing brake drum Or rotor with visible cracks extending to cooling fins
OOS
04
Mismatched brake chamber sizes (same axle) Type 20 + Type 24 on same axle = violation
OOS
05
Inoperative parking brake Yellow knob fails to hold or won't set
OOS
06
20%+ of brakes defective on vehicle CVSA Out-of-Service Criteria, Part II
OOS
How It Works

From air leak to FMCSA-compliant in under 2 hours.

Most air-brake calls start with a driver hearing a hiss they didn't hear yesterday, or seeing an ABS light, or knowing the scale is coming up. We get there, we fix it, we document it.

1

Call (216) 200-8430

Tell dispatch what you're hearing or seeing: an air leak at the chamber, ABS warning light, brake won't release, slow PSI build, parking brake won't set. We assign a tech with the right parts before we hang up.

2

On-scene diagnosis

Tech arrives with leak detection equipment, pressure gauges, stroke measurement tools, and common chambers / dryers / slack adjusters on the truck. We isolate the fault in 10–20 minutes, not 2 hours.

3

Repair to FMCSA spec

Parts swapped, leaks sealed, stroke adjusted, system charged to spec. We verify pressure cut-in / cut-out (typically 100–120 PSI band), confirm leak rate is within FMCSR §393.45 limits, and check stroke at every wheel.

4

Documented invoice

Detailed invoice with parts, labor, stroke measurements, leak rate verification, and tech ID. Useful for fleet maintenance records and DataQ challenges if you're correcting a prior violation.

Mechanic using diagnostic tool on a heavy-duty truck air brake system
What We Carry

Air-system parts stocked on every service truck.

The components most likely to fail a DOT inspection are carried on the truck — not "we'll order it and be back tomorrow."

Type 20 / 24 / 30 Chambers Most common service brake chambers
Air Dryer Cartridges Bendix & Meritor common sizes
Auto Slack Adjusters 5.5" and 6" common arms
Glad Hands & Seals Service & emergency, with seals
Air Hose & Fittings DOT-rated nylon and rubber
Air Spring / Bags Hendrickson, Holland common sizes
ABS Sensors Bendix & WABCO wheel-speed
Specialty Sizes Sourced same-day from suppliers
Where We Roll & What Else We Do

Air brake service across NE Ohio.

Browse where we dispatch most for air-brake calls — or jump to a related service often called on the same trip.

Service areas for air brake repair

We dispatch to highway shoulders, truck stops, scales, and customer yards across these primary metros.

Cleveland, OH Cleveland metro · I-90 / I-77 / I-480 · ≤ 60 min response
Akron, OH Akron / Summit County · I-77 / I-76 corridors · ≤ 90 min
Youngstown, OH Mahoning Valley · I-80 to PA state line · ≤ 2 hr

Related services on the same call

Air-brake calls often surface other issues — we handle them on the same dispatch.

Mobile Diesel Mechanic Diagnostics · derate clearing · electrical · engine repair
Tire Repair & Replacement Steer, drive, trailer tires · 45–75 min on-scene
★★★★★

Broke down on I-80 at midnight, hauling a load to Pittsburgh. GTS picked up on the first ring and had a tech to me in under an hour. Diagnosed the air leak, fixed it on the shoulder, gave me a fair price up front. These guys saved my night.

Owner-Operator · Verified Google Review · I-80 Air Leak Repair

Common Questions

Air brake & DOT repair — what drivers ask most.

Can a mobile mechanic actually fix an air brake issue on the side of the road?
Yes — the vast majority of air-brake faults are roadside-fixable. Air leaks (chambers, glad hands, lines), failed slack adjusters, broken air dryers, governor issues, glad hand seals, ABS sensor faults, and air spring failures all get fixed on-scene. Tow-required jobs — like a cracked brake drum or wheel bearing failure — are flagged in the first 15 minutes so you don't pay for wasted diagnostic time.
What's the difference between a DOT violation and an out-of-service order?
A DOT violation is anything the inspector flags on the inspection report — it counts toward your CSA score but you can still roll. An out-of-service (OOS) order means the truck is physically parked until repaired. Brake-related OOS criteria: any audible air leak, brake stroke over adjustment limit, more than 20% of brakes defective, cracked drum, mismatched chambers on the same axle, or an inoperative parking brake. We fix all of those on-scene.
I have a DOT inspection coming up — can you do a pre-inspection check?
Yes. Pre-DOT inspection walk-arounds are one of our most common scheduled calls. We measure brake stroke at every wheel, check chamber condition, verify leak rate (under 3 PSI/min single, under 4 PSI/min combination per FMCSR §393.45), test parking brake hold, and inspect glad hands, air lines, and ABS function. Anything found gets fixed before you roll onto the scale.
What does mobile air brake repair cost?
Mobile air-brake service in Northeast Ohio typically runs $150–$250 for the service call plus parts and labor. Common repairs: air leak diagnosis & seal $200–$400 total, chamber replacement $300–$500 per position, slack adjuster replacement $250–$400, air dryer cartridge $400–$600. We give a verbal estimate before any work begins.
Can you repair air brake issues before a scale or DOT inspection?
Yes — this is one of our highest-priority call types. If you've noticed an air leak, soft parking brake, or ABS light and a scale is coming up, call us before you cross it. We can typically meet you at the nearest truck stop or rest area within an hour. Once you cross the scale with a violation, you're looking at a CSA score hit, fines, and possibly an out-of-service order.
What brake chamber types do you carry?
Type 20, Type 24, and Type 30 service brake chambers — the three most common sizes on Class 7/8 trucks and trailers. Spring brake chambers (Type 30/30 and 24/30) also stocked. Specialty sizes (Type 16, Type 36) are sourced from local suppliers same-day in most cases. We confirm chamber size before dispatch if you can tell us, or we'll size on-scene.
Do you work on ABS faults and warning lights?
Yes. We diagnose ABS warning lights on Bendix and WABCO systems — wheel speed sensor faults (most common), exciter ring damage, modulator valve failures, and ECU communication faults. Wheel speed sensors are carried on the truck. An active ABS light is itself a violation, so this is a common pre-inspection repair.
I got a brake violation at a recent inspection — can you do the corrective repair?
Yes. We perform the corrective repair, document it with specific parts, labor, measurements, and tech ID on the invoice, and you can use that documentation for your DataQ challenge if applicable. Common post-violation repairs: chamber replacement, stroke adjustment, air dryer replacement, ABS sensor swap.
Do you do fleet pre-trip inspections or air-system PMs?
Yes — scheduled air-system inspections at your yard or terminal, typically multi-truck. We measure brake stroke at every wheel, verify chamber condition, test leak rate, check parking brake function, and document each truck on a per-VIN PDF report. Useful for fleet maintenance compliance and audit prep. Email [email protected] to schedule.

Air leak before a scale? Fix it before they see it.

One call. 60–90 minute response across NE Ohio. FMCSA-compliant repair, documented invoice, you keep rolling.

Call (216) 200-8430 Text Your Location
Call Dispatch (216) 200-8430 24/7 · Air Brake & DOT Repair