Do you have PACCAR diagnostic equipment?

Yes. We use PACCAR ESA (Electronic Service Analyst) — the factory diagnostic software — for full-depth diagnostics on all PACCAR MX engines and TX-12 transmissions.

What Kenworth models do you service?

All current and recent models: T680, T880, W990, W900, T370, T270, C500, T800, and legacy models.

Can you repair the PACCAR TX-12 automated transmission?

Absolutely. Clutch replacements, actuator service, software updates, shift quality diagnostics, and complete overhauls.

What are common problems with the PACCAR MX-13 engine?

EGR cooler leaks, aftertreatment system faults, turbo actuator failures, injector issues, and coolant leaks.

How much does a Kenworth DPF regeneration cost?

A forced regen service costs significantly less than DPF replacement. We diagnose the root cause first. Call 704-786-0132 for a specific estimate.

Do you offer fleet maintenance programs for Kenworth trucks?

Yes. Tiered PM programs with digital inspection reports, photos, and priority scheduling for fleet accounts.

Can you perform DOT inspections on Kenworth trucks?

Yes. Federal DOT annual inspections on all Kenworth models per FMCSA guidelines.

Do you work on Kenworth trucks with Cummins engines?

Yes. We service Kenworth trucks with both PACCAR MX engines and Cummins X15, ISX15, and medium-duty engines.

Kenworth truck repair at CTR Repair in Concord NC

PACCAR ESA Factory Diagnostics

Kenworth
Repair Services

Kenworth trucks are built for drivers who demand the best — and they deserve service that matches. CTR Repair provides dealer-level diagnostics at independent shop pricing. T680, T880, W990, W900, and all models.

All

Models Serviced

Engine Platforms

ESA

Diagnostic Tool

Off I-85

Location

Mon–Fri 7:00 AM – 5:00 PM

2931 Armentrout Dr, Concord

(704) 786-0132

PACCAR ESA Diagnostics

Models We Service

Every Kenworth Model

T680

Kenworth's flagship aerodynamic highway tractor. Day cab and 76" sleeper. PACCAR MX-13, MX-11, and Cummins X15 power options. TX-12 automated transmission.

T880

Vocational workhorse — dump, mixer, crane, heavy-haul. Set-forward and set-back axle configurations. PACCAR and Cummins power.

W990

Premium long-hood conventional. PACCAR MX-13 and Cummins X15. Traditional styling with modern technology.

W900

The iconic long-nose Kenworth. Legacy and current production. Full drivetrain, electrical, and chassis service.

T370 / T270

Medium-duty PACCAR PX-7 and PX-9 powered trucks. Allison automatic transmissions. Box trucks, flatbeds, service bodies.

C500 / T800

Heavy-haul and vocational legacy models. Full service and overhaul capability.

Engine Expertise

PACCAR MX & Cummins

PACCAR MX-13 (12.9L)

380–510 HP

Common rail fuel system, VGT turbocharger, EGR system, DPF/DOC/SCR aftertreatment, overhead adjustment, compression brake.

PACCAR MX-11 (10.8L)

355–430 HP

Lighter weight option for regional and vocational. Full service including fuel system, turbo, and aftertreatment.

Cummins X15 / ISX15

400–605 HP

XPI fuel system, VGT turbo, aftertreatment, overhead adjustment, compression brake. CM2350 and CM2450 electronics.

PACCAR PX-7 / PX-9

200–380 HP

Medium-duty Cummins-based engines. Full service for T270 and T370 applications.

Common Issues

Kenworth Problems We Fix

Aftertreatment / Emissions Derates

DEF quality sensor faults, DPF soot loading, SCR efficiency codes, NOx sensor failures. Common codes: SPN 4094, SPN 3226, SPN 5246.

PACCAR TX-12 Transmission

Clutch actuator failures, shift quality complaints, software update needs, range synchronizer wear.

EGR System Failures

EGR cooler cracking, EGR valve carbon buildup, intake manifold fouling.

Turbocharger Issues

VGT actuator sticking, turbo bearing wear, boost leaks, wastegate failures.

Electrical / Multiplexing

CAN bus communication errors, body builder interface issues, phantom warning lights.

Cooling System Leaks

Water pump, thermostat housing, EGR cooler, charge air cooler failures.

Full Service

Comprehensive Service Menu

Preventive Maintenance

Tiered PM programs, DOT annual inspections, pre-trip issue resolution, fluid analysis.

Engine Repair & Overhaul

In-frame and out-of-frame overhauls, injector replacement, head gasket repair, engine brake adjustment.

Transmission Service

TX-12 clutch replacement, Eaton Fuller rebuild, Allison service, PTO installation and repair.

Electrical & Diagnostics

PACCAR ESA diagnostics, Davie4 interface, aftertreatment diagnosis, wiring repair.

Steering & Suspension

Front axle and king pin, power steering, air-ride suspension, alignment — steer and tandem.

Brake Service

Foundation brake reline, Bendix ABS diagnosis, air system leak-down testing, slack adjuster replacement.

Cooling System

Radiator repair and replacement, water pump, charge air cooler, fan clutch, coolant flush.

A/C & Heating

Full A/C diagnosis and repair, blend door actuator, compressor replacement, heater core service.

Why CTR

Why Choose CTR for Kenworth

PACCAR ESA factory diagnostics — dealer-level capability, independent shop pricing

All Kenworth models — T680, T880, W990, W900, T370, T270, C500, T800

All PACCAR engines — MX-13, MX-11, PX-7, PX-9 plus Cummins X15

TX-12 automated transmission specialists

Convenient I-85 location in Concord — easy Class 8 access

Fleet-friendly — priority scheduling, PM programs, digital reporting

Honest pricing — transparent estimates before work begins

Other Brands

We Also Service

Freightliner Repair →Peterbilt Repair →Volvo Repair →Mack Repair →DOT Inspections →Fleet Maintenance →All HD Services →

Service Area

Kenworth Repair Near You

CTR Heavy Duty — Armentrout Dr

2931 Armentrout Dr, Concord, NC 28025