Shop repair in Ringgold, GA · Mobile when the truck can't come in

Semi Truck Repair Near Me

Diesel diagnostics and repair for tractors and trailers, off I-75 near the Tennessee line

You'll know what we found, what it costs, and how long it should take before we start. Bring it to our Ringgold shop, or if it can't make the trip, we'll send a mobile mechanic or a wrecker.

Call (423) 255-0896 Request a Callback
24/7 A person picks up Not a callback queue
50-Mile Out of Ringgold I-75 & I-24
5-Star What drivers say Open on Google
On the call

Have this ready

Where the truck is · make and model · what it's doing (codes, noises, warning lights)

  1. 01 Where the truck is Shop you're heading from, yard, or mile marker
  2. 02 Make and model Plus unit number if it's a fleet truck
  3. 03 What it's doing Codes, noises, warning lights, or derate
Call (423) 255-0896

The problem

A truck problem is a scheduling problem, too

A warning light, a derate, or a soft brake pedal isn't just a repair. It's a load that might miss its window, a driver waiting on answers, and a bill you can't plan for yet.

We work on Freightliner, Kenworth, Peterbilt, International, Volvo, Mack, and Western Star trucks for owner-operators and fleets across Ringgold, Fort Oglethorpe, Chattanooga, East Ridge, and Dalton.

What helps most is a clear answer. We start by finding the cause, not by swapping parts. Then we tell you plainly what failed, what the repair involves, what it costs, and whether parts are on the shelf. You decide, and we get to work.

Describe the problem: (423) 255-0896

How a repair works with us

Same path every time: find the cause, explain it, get your OK, then verify the fix.

Step 01

Call us

Tell us where the truck is, what it is, and what it's doing. We'll decide together whether it comes to the shop, needs a mobile mechanic, or needs a tow.

Step 02

We diagnose

Codes, live data, inspection, and road testing as needed, until the cause is confirmed.

Step 03

Findings + estimate

What failed, what it will take, the cost, and whether the parts are in stock or need to be ordered.

Step 04

You approve

Then we repair. No work starts without your OK. Fleet customers: tell us who can authorize work.

Step 05

We verify

We confirm the repair fixed the original problem before release.

Step 06

Clear invoice

You're released with a clear invoice. Parts, labor, and unit number so your records stay complete.

Services

What we repair

Tell us what the truck is doing. We'll match it to the right diagnosis and next step.

Engine diagnostics and check-engine lights

You're seeing: a check-engine light, a derate, lost power, hard starting, or rough running.

What we do: read active and stored fault codes, review live data, and run tests to confirm the failed component before recommending a repair. Our scan tools cover Cummins, Detroit, PACCAR, and International platforms.

Next step: Call with the codes if you have them. If you don't, the symptoms are enough to start.

DPF, DEF and aftertreatment

You're seeing: frequent regens, a soot-level warning, a derate, or a regen that won't complete.

What we do: forced (parked) regenerations, DPF cleaning, and checks of the sensors and parts that cause repeat clogging. If a filter is past cleaning, we'll tell you before you pay for a regen that won't hold.

Next step: Call to schedule. Ask if same-day is possible for your filter.

Electrical and no-start

You're seeing: a no-start, dead batteries, a charging warning, lights out, or intermittent electrical problems.

What we do: test the batteries and charging system, trace circuits, and find the damaged section of wiring, so a single bad wire doesn't turn into a whole new harness.

Next step: Call and tell us when it happens: always, only when hot, only over bumps.

Cooling system

You're seeing: coolant loss, overheating, a sweet smell, or a coolant warning.

What we do: pressure testing and repair of water pumps, hoses, thermostats, radiators, and EGR coolers.

Next step: If it's overheating, stop driving and call.

Brakes and air system

You're seeing: out-of-adjustment brakes, air leaks, slow air build-up, worn shoes, or a brake defect from an inspection.

What we do: shoes, drums, slack adjusters, air chambers, valves, air lines and fittings, with leak tracing for tractors and trailers.

Next step: If the truck is safe to drive, bring it in. If it's losing air, call. It may be a mobile repair or a tow.

DOT-readiness safety checks

What we do: DOT-readiness safety checks of brakes, lights, tires, air system, fifth wheel, frame, steering, and suspension, so you can fix problems before a roadside inspection finds them.

Next step: Request a callback to schedule.

Transmission, clutch and driveline

You're seeing: hard shifting, slipping, grinding, vibration, or a clutch that won't release cleanly.

What we do: diagnosis and repair of transmissions, clutches, driveshafts, U-joints, and differentials.

Next step: Call to book a diagnosis.

Suspension and steering

You're seeing: a truck that pulls, wanders, or bounces, a leaking air bag, or uneven tire wear.

What we do: air bags, springs, kingpins, tie rod ends, steering gears, and related components.

Next step: Call to schedule.

Why ASAP

Why drivers and fleets call us

Clear findings, one phone number, and a repair checked before the truck leaves.

Shop, mobile or tow, from one phone call

If the truck can roll, bring it to the shop. If it can't, we can send a mobile mechanic, or tow it in when the repair needs a lift or shop tools. You don't have to call three companies.

You hear the diagnosis before you get the bill

We explain what failed and why in plain English, then give you the estimate. If we find something else once the job is open, we call before going further.

We check the repair before the truck leaves

Once the work is done, we confirm the original symptom is gone, clear related codes, and road-test where it makes sense.

Billing that works for fleets

We accept Comdata, EFS, and T-Chek. Invoices list the unit number, parts, and labor, so your maintenance records stay complete.

Call (423) 255-0896

Coverage

Where we work

Our shop is at 252 Cassidy Ln, Ringgold, GA 30736, off I-75 just south of the Tennessee line. Shop customers come to us from Ringgold, Fort Oglethorpe, Chattanooga, East Ridge, and Dalton. Mobile mechanics and towing cover the I-75 and I-24 corridors around Chattanooga and North Georgia. If you're farther out, call. We'll tell you straight whether we can reach you.

I-75 I-24 US-41 GA-2 GA-151
Ringgold, GA Fort Oglethorpe, GA Chattanooga, TN East Ridge, TN Dalton, GA Calhoun, GA All service areas

Related Services

If the truck can't come to the shop, these pages cover the next step. Trailer problems? See trailer repair. Mobile when it can't roll in? See mobile diesel mechanic.

Roadside Assistance Broken down on I-75 or I-24? Call for roadside repair or a tow. Heavy Duty Towing If it can't be fixed where it sits, we'll tow it to our shop or wherever you need it. Back to home page → Return to ASAP Towing & Truck Repair home.

Semi truck repair questions

It depends on the repair and on parts. Many brake, sensor, and air-line repairs are same-day jobs. DPF cleaning and engine or transmission work can take longer. We give you a realistic timeline with the estimate and call you if anything changes.
We work on Class 8 tractors, including Freightliner, Kenworth, Peterbilt, International, Volvo, Mack, and Western Star, plus trailers. Our diagnostic tools cover Cummins, Detroit, PACCAR, and International platforms. If you're running something less common, call us — we'll tell you honestly whether we're the right shop.
We perform DOT-readiness safety checks covering brakes, tires, lights, air systems, fifth wheel, frame, steering, and suspension, and we can repair defects we find. That helps you catch problems before a roadside inspection does.
We stock common wear parts. If something has to be ordered, we tell you the expected arrival before you approve the job.
Often, yes. Many air, electrical, brake, and no-start problems can be fixed on site by a mobile diesel mechanic. If the repair needs a lift or shop equipment, we can tow it to our shop.
We accept Comdata, EFS, and T-Chek fleet cards, major credit cards, and cash. Fleet managers can call to set up authorized contacts. See our fleet services page for more on commercial accounts.
Rates vary by job type — diagnostics, labor, and parts are typically itemized. After we diagnose the problem, we explain what we found and give you an estimate. Work starts when you approve it. Call (423) 255-0896 to describe the truck.
Signs include frequent regens, a soot-level warning, a derate, loss of power, or a regen that won't complete. A forced regen burns off soot when normal driving hasn't. If the filter is loaded with ash or keeps clogging quickly, a regen won't last. Cleaning or replacement is the fix, and we'll check what's causing it first.
A forced regen burns off accumulated soot in the DPF when the truck can't complete a normal drive cycle. We run forced regens when the DPF is partially blocked; if it's too full of ash or keeps clogging, we recommend cleaning or replacement instead of repeating a regen that won't hold.

If anyone is hurt or the truck is in a live lane, call 911 first.

Tell us what the truck is doing

Call with three things: where the truck is, what it is, and what it's doing. We'll tell you the next step: bring it in, send a mechanic, or send a wrecker. Shop repair, mobile mechanic, or a tow — one call covers all three.

Call (423) 255-0896 Request a Callback
Trucks we work on
Peterbilt
Mack Trucks
Kenworth
Hino
International Trucks
Western Star Trucks
Volvo Trucks
Tire services
Isuzu