Do you have PACCAR diagnostic equipment for Peterbilt trucks?

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 in Peterbilt trucks.

What Peterbilt models do you service?

All current and recent models: 579, 567, 389, 365, 367, 536, 537, 548, 220, 520, 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 in Peterbilt trucks?

EGR cooler leaks, aftertreatment system faults (DPF, SCR, DEF quality), turbo actuator failures, injector issues, and coolant leaks.

How much does a Peterbilt 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 Peterbilt trucks?

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

Can you perform DOT inspections on Peterbilt trucks?

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

Do you work on Peterbilt trucks with Cummins engines?

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

Peterbilt truck repair at CTR Repair in Concord NC

PACCAR ESA Factory Diagnostics

Peterbilt
Repair Services

Peterbilt trucks represent the pinnacle of American trucking — and they deserve service that matches. CTR Repair delivers dealer-level diagnostics at independent shop pricing. 579, 389, 567, 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 Peterbilt Model

579

Peterbilt's flagship aerodynamic highway tractor. Day cab and 80" UltraLoft sleeper. PACCAR MX-13, MX-11, and Cummins X15 power options. TX-12 automated transmission.

567

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

389

The iconic long-hood Peterbilt. PACCAR MX-13 and Cummins X15. Owner-operator favorite with classic styling and modern technology.

365 / 367

Heavy-haul and vocational configurations. Tri-axle, heavy-haul, and crane applications.

536 / 537 / 548

Medium-duty PACCAR PX-7 and PX-9 powered trucks. Allison automatic transmissions.

Model 220 / 520

Low-cab-entry for refuse and urban delivery applications.

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 536, 537, and 548 applications.

Common Issues

Peterbilt 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 on MX-13 and MX-11.

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 Peterbilt

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

All Peterbilt models — 579, 567, 389, 365, 367, 536, 537, 548, 220, 520

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 →Kenworth Repair →Volvo Repair →Mack Repair →DOT Inspections →Fleet Maintenance →All HD Services →

Service Area

Peterbilt Repair Near You

CTR Heavy Duty — Armentrout Dr

2931 Armentrout Dr, Concord, NC 28025