24/7 Emergency Engine Diagnostics: Call (855) 450-1212 for immediate assistance

Engine Diagnostics Services

Advanced computer diagnostics and expert analysis to identify your truck engine issues quickly and accurately

Call (855) 450-1212

Advanced Engine Diagnostics Services

Modern commercial truck engines are sophisticated systems controlled by complex computer networks. When problems arise, proper diagnosis requires more than just mechanical knowledge—it demands advanced diagnostic equipment and expertise in electronic systems.

At MTS TruckAI Services, we combine state-of-the-art diagnostic technology with experienced technicians who understand the intricacies of today's diesel engines. Our comprehensive diagnostic approach identifies the root cause of your engine issues, not just the symptoms, saving you time and money on unnecessary repairs.

MTS TruckAI Computer Engine Diagnostics
MTS TruckAI Check Engine Light Diagnostics

Our Engine Diagnostics Services Include

Computer Diagnostic System Scanning

Our technicians use advanced diagnostic scanners to access your engine's electronic control modules (ECMs), retrieve fault codes, and analyze real-time performance data to identify system malfunctions and performance issues.

Complete Engine Performance Testing

We conduct comprehensive engine performance evaluations, including power output testing, fuel efficiency analysis, and operational assessments under various load conditions to identify performance deficiencies.

Emissions System Diagnostics

Our specialized equipment diagnoses problems with DPF systems, SCR components, EGR valves, and other emissions control devices to ensure your truck meets regulatory requirements while maintaining optimal performance.

Sensor Testing & Calibration

We thoroughly test critical engine sensors—including oxygen sensors, temperature sensors, pressure sensors, and position sensors—to verify accurate readings and proper system function.

ECM/ECU Testing & Reprogramming

Our technicians can diagnose electronic control module issues, perform software updates, calibrate settings, and when necessary, replace or rebuild your truck's engine control units to restore proper system function.

Need Expert Engine Diagnostics?

Don't waste time and money on guesswork repairs. Our advanced diagnostic services identify the exact cause of your engine problems.

Call (855) 450-1212

Why Choose Our Engine Diagnostics Services

Advanced Equipment

We invest in the latest diagnostic technology capable of interfacing with all major truck engine management systems.

Experienced Technicians

Our ASE-certified technicians receive ongoing training on the latest engine technology and diagnostic procedures.

Mobile Diagnostics

Our mobile diagnostic units bring advanced testing capabilities directly to your location, minimizing downtime.

Our Engine Diagnostics Process

1. Initial Consultation

We begin by discussing your engine's symptoms, operational history, and maintenance record to gather important background information.

2. Visual Inspection

Our technicians perform a thorough visual inspection of your engine, looking for obvious mechanical issues, fluid leaks, and damaged components.

3. Computer System Scanning

We connect our advanced diagnostic equipment to your truck's OBD port to retrieve stored fault codes and access real-time data from all electronic control systems.

4. Live Data Analysis

Our technicians analyze real-time operational data from your engine's sensors and control modules during various operating conditions to identify irregular patterns.

5. Specialized Testing

When necessary, we perform additional testing such as compression testing, fuel pressure analysis, or electrical system diagnostics to isolate specific component failures.

ECM Testing

6. Comprehensive Report

We provide a detailed diagnostic report that identifies the root cause of your engine issues, along with recommended repair solutions and cost estimates.

7. Repair Recommendations

Our technicians explain our findings and recommend the most efficient and cost-effective repair options to resolve your engine problems.

Engine Diagnostics Service

Our advanced diagnostic equipment can identify issues with all major truck engine brands

Customer Testimonials

After three unsuccessful repair attempts at another shop, TruckAI's diagnostic service identified a failing sensor that was causing our intermittent performance issues. Their technician found in 20 minutes what others couldn't find in three weeks. The accurate diagnosis saved us thousands in unnecessary parts replacements and days of downtime.
William D.
William D.
Horizon Freight Systems
Fleet Manager
The mobile diagnostic service from TruckAI is a game-changer for our operation. When our truck broke down 200 miles from the terminal, they sent a technician who diagnosed the ECM issue on-site. What impressed me most was their ability to not just identify the problem but also reprogram the module right there. We were back on the road in hours instead of days.
Laura M.
Laura M.
Continental Transport LLC
Operations Director

Frequently Asked Questions

Our comprehensive engine diagnostic services can identify a wide range of issues across your truck's systems:

  • Engine Management Issues: Problems with fuel delivery, ignition timing, air intake, and combustion processes.
  • Electronic Control Module Problems: Software corruption, calibration errors, or hardware failures in your truck's ECM/ECU systems.
  • Sensor Malfunctions: Faulty or degraded sensors that provide critical data to your engine's control systems, including oxygen sensors, temperature sensors, pressure sensors, position sensors, and speed sensors.
  • Emissions System Failures: Problems with DPF filters, SCR systems, EGR valves, DEF systems, and other emissions control components.
  • Fuel System Issues: Fuel pressure problems, injector malfunctions, fuel quality issues, and pump failures.
  • Air System Problems: Intake restrictions, turbocharger issues, boost pressure anomalies, and air leaks.
  • Cooling System Failures: Thermostat problems, coolant flow issues, temperature control malfunctions.
  • Electrical System Problems: Voltage irregularities, wiring faults, battery issues, and alternator performance.
  • Performance Issues: Power loss, excessive fuel consumption, irregular idle, hesitation, and other drivability problems.

Our diagnostic approach goes beyond simply reading fault codes. We analyze real-time data, perform specific component tests, and use our experience to interpret results accurately. This comprehensive approach ensures we identify the true root cause of problems, not just symptoms, saving you time and money on unnecessary repairs.

Proper diagnostic services save truck owners money in several important ways:

  • Preventing Unnecessary Parts Replacement: Without proper diagnostics, technicians often resort to "parts swapping"—replacing components that might be causing the problem. This approach is costly and often ineffective. Our precise diagnostics identify exactly which components are failing, eliminating guesswork and unnecessary parts replacements.
  • Identifying Root Causes: Many engine problems have underlying causes that, if left unaddressed, will cause new components to fail prematurely. We identify these root causes to ensure repairs are comprehensive and long-lasting.
  • Reducing Downtime: Accurate diagnostics mean faster, more effective repairs, getting your truck back on the road sooner. Each day of downtime can cost thousands in lost revenue and opportunities.
  • Preventing Cascading Failures: Undiagnosed engine problems often lead to additional component failures as the original issue affects other systems. Early, accurate diagnosis prevents these cascading failures and the additional repair costs they generate.
  • Optimizing Performance: Our diagnostics often identify issues affecting fuel efficiency and engine performance. Addressing these can produce significant fuel savings and extend component life.
  • Maintenance Planning: Comprehensive diagnostics provide insight into the overall health of your engine, allowing for strategic maintenance planning rather than reactive repairs.

We've had many clients report that our diagnostic services saved them thousands of dollars in unnecessary repairs and downtime. While there is a cost for thorough diagnostics, it's an investment that typically pays for itself many times over in avoided repair costs and reduced downtime.

Our diagnostic capabilities cover virtually all commercial truck engines in operation today:

  • Engine Manufacturers:
    • Cummins (ISX, X15, ISB, L9, etc.)
    • Detroit Diesel (DD13, DD15, DD16, Series 60)
    • PACCAR (MX-11, MX-13)
    • Volvo (D11, D13, D16)
    • Mack (MP7, MP8, MP10)
    • International/Navistar (N13, A26, MaxxForce)
    • Mercedes-Benz/Detroit (MBE, OM)
    • Caterpillar (C7, C9, C13, C15)
    • Isuzu, Hino, Mitsubishi, and other medium-duty engines
  • Engine Management Systems:
    • Cummins INSITE and Calterm
    • Detroit Diesel Diagnostic Link (DDDL)
    • PACCAR DAVIE4
    • Volvo PTT/VCADS
    • Mack/Volvo Premium Tech Tool (PTT)
    • International Diamond Logic Builder/ServiceMaxx
    • Bendix ACom/VORAD
    • Wabco TOOLBOX
    • All major aftermarket diagnostic systems

Our diagnostic equipment is regularly updated with the latest software and protocols to ensure compatibility with new engine models and control systems. Our technicians receive ongoing training on new engine technologies and diagnostic procedures as they are introduced, ensuring we remain current with rapidly evolving truck technology.

Whether your truck has a brand new EPA 2024 compliant engine or an older pre-emissions model, we have the equipment and expertise to provide accurate diagnostics.

Our mobile diagnostic service brings advanced engine diagnostics directly to your location, whether you're at a terminal, distribution center, or broken down roadside. Here's how the process works:

  1. Initial Contact: Call our 24/7 dispatch center or submit a service request online with details about your engine issues and location.
  2. Technician Dispatch: We assign the nearest qualified diagnostic technician with a fully-equipped service vehicle containing the latest diagnostic equipment.
  3. On-Site Diagnostics: Our technician arrives at your location and performs comprehensive diagnostics on your engine, including computer scanning, live data analysis, and component testing.
  4. Diagnostic Report: You receive a detailed report of our findings, including the root cause of the problem and recommended repairs.
  5. Repair Options: If repairs are needed, our technician can often perform them on-site. For more complex repairs, we can coordinate with our shop or help arrange appropriate towing.
  6. Documentation: We provide complete documentation of all diagnostic procedures and findings for your records and warranty purposes.

Our mobile diagnostic vehicles are equipped with:

  • OEM and aftermarket diagnostic computers and interfaces
  • Specialized testing equipment for electrical, fuel, and air systems
  • Common repair parts for frequently diagnosed issues
  • Software for ECM/ECU reprogramming and calibration
  • Satellite communication for remote technical support when needed

For fleet customers, we offer scheduled mobile diagnostic visits at your facility to identify potential issues before they cause breakdowns, helping you maintain your vehicles proactively and minimize unplanned downtime.

When your truck's check engine light illuminates, it's important to respond appropriately based on how the light appears and other symptoms:

For a steady (non-flashing) check engine light:

  1. Check Other Gauges: Immediately scan your other dashboard gauges for abnormal readings (temperature, oil pressure, voltage, etc.).
  2. Note Any Symptoms: Pay attention to any performance changes, unusual noises, or other symptoms occurring alongside the warning light.
  3. Continue with Caution: If there are no serious symptoms and other gauges show normal readings, you can typically continue operating but should schedule diagnostics as soon as possible.
  4. Schedule Diagnostics: Contact us to arrange diagnostic service at your earliest convenience, ideally within 1-2 days. Continuing to operate with an illuminated check engine light may lead to additional damage or reduced fuel economy.

For a flashing check engine light or a red warning light:

  1. Safely Pull Over: A flashing light indicates a severe problem that could cause immediate damage to expensive components like your catalytic converter or engine.
  2. Shut Down the Engine: Once safely parked, turn off the engine to prevent further damage.
  3. Call for Emergency Service: Contact our 24/7 emergency line at (855) 450-1212 for immediate diagnostic assistance.
  4. Do Not Restart: Avoid restarting the engine until a professional has diagnosed the issue, as additional operation could cause severe damage.

Remember that modern truck engines have sophisticated protection systems that often reduce power (sometimes called "limp mode") when serious problems are detected. If your truck suddenly loses power along with a check engine light, this is the computer protecting the engine from damage. While frustrating, this feature often prevents catastrophic failures.

Never ignore a check engine light, even if the truck seems to be running normally. Many serious issues begin with subtle symptoms that the computer detects before they become noticeable to the driver. Prompt diagnosis can often prevent minor issues from developing into major repairs.

Related Services

Need Engine Diagnostics Services?

Our advanced diagnostic equipment and experienced technicians can identify your engine issues quickly and accurately. Don't waste time and money on guesswork repairs.

TruckAI Assistant
TruckAI Assistant:

Hello! I'm your engine diagnostics assistant. How can I help with your truck engine issues today?