SERVICES / HEAVY-DUTY

The right repair starts with the right diagnosis.

Electronic, mechanical and electrical systems work together on modern trucks. Our service menu is built around understanding the whole system before replacing parts.

Heavy-duty truck diagnostics at TractoAuto LLC
Diesel engine repair and diagnostics at TractoAuto
DIAGNOSE • VERIFY • REPAIR
SERVICE MATRIX

Capability that goes beyond a parts cannon.

From a no-start to a network fault, every job begins with the same question: what can we prove?

Heavy-duty computer diagnostics at TractoAuto
01 / ADVANCED DIAGNOSTICS

Computer diagnostics & system testing

Fault codes, live data, datalink, sensor validation and guided testing across modern heavy-duty platforms.

REQUEST DIAGNOSTICS
02

Diesel engine repair

Fuel, cooling, lubrication, performance and major mechanical concerns.

03

Electrical diagnostics

Power, ground, harness, sensor and communication failures.

04

Programming & electronics

Module programming, calibration support and electronic service.

05

Aftertreatment systems

Emissions faults, derates and aftertreatment troubleshooting.

06

Preventive maintenance

Service plans focused on uptime, reliability and early detection.

HOW WE APPROACH THE TRUCK

Four checkpoints before the keys go back.

01

Complaint

What is the truck actually doing?

02

Evidence

What does data and testing prove?

03

Repair

Fix the failure with a clear plan.

04

Validation

Recheck operation under real conditions.

PLATFORMS

Heavy-duty is our lane.

Service experience across the major truck and engine brands seen every day in commercial fleets.

01

PACCAR

02

CUMMINS

03

DETROIT

04

VOLVO

05

MACK

06

FREIGHTLINER

07

KENWORTH

08

PETERBILT

NOT SURE WHICH SERVICE YOU NEED?

Start with the symptom. We'll take it from there.

TALK TO TRACTOAUTO →