Mack Engine Repair Service
MP7 & MP8 engine specialists - Volvo Group platform expertise for diagnostics, overhauls & emission systems
Wayne Truck & Trailer provides expert Mack engine repair and service at our Sidney and Brookville, Ohio locations. Our ASE-certified technicians specialize in Mack MP7 and MP8 engine platforms, delivering comprehensive diagnostics, repair, and overhaul services. Mack MP engines share Volvo Group engineering with Volvo D-series engines, and Wayne's expertise spans both platforms for deeper diagnostic insight and repair capability. From common MP8 emission system issues and turbo failures to complete engine overhauls, we handle all aspects of Mack engine service. We also specialize in mDRIVE automated transmission repair, V-MAC electronic diagnostics, and aftertreatment system service including DPF, SCR, and EGR components. Mobile service available throughout West Central Ohio. Fleet maintenance programs with oil analysis and priority scheduling.
Our Mack Engine Repair Service Services
Professional, reliable service with ASE certified technicians
MP8 Engine Repair
Complete Mack MP8 engine diagnostics and repair. Addressing common MP8 problems including emission system faults, turbo actuator failures, injector issues, and EGR cooler leaks. Factory-level scan tools for accurate diagnosis.
MP7 Engine Service
Expert MP7 engine maintenance and repair for Mack medium-duty and vocational applications. Oil system service, valve adjustments, timing calibration, and complete engine diagnostics.
Mack mDRIVE Transmission
Specialized mDRIVE automated manual transmission diagnostics and repair. Clutch actuator service, shift quality adjustments, software updates, and complete transmission overhaul when needed.
Mack Aftertreatment/DPF/SCR/EGR
Complete Mack emission system service. DPF cleaning and regeneration, SCR catalyst replacement, EGR valve and cooler repair, DEF system diagnostics, and NOx sensor service for MP7 and MP8 engines.
Mack Fuel System
Fuel system diagnostics and repair for MP engines. High-pressure common rail service, injector testing and replacement, fuel pump repair, fuel filter service, and fuel contamination resolution.
Mack Turbocharger (VGT)
Variable geometry turbocharger diagnostics and repair for Mack MP engines. VGT actuator replacement, turbo rebuild, boost pressure troubleshooting, and wastegate service.
Mack Electrical/V-MAC
Advanced V-MAC electronic control system diagnostics. ECU programming, sensor replacement, wiring harness repair, CAN bus troubleshooting, and instrument cluster diagnostics for all Mack models.
Engine Overhaul & Rebuild
Complete Mack MP7 and MP8 engine overhauls. In-frame and out-of-frame rebuilds, cylinder head reconditioning, crankshaft inspection, camshaft service, and complete engine reassembly with factory specifications.
Mobile Mack Engine Service
On-site Mack engine diagnostics and repair throughout West Central Ohio. Mobile units equipped with Mack-specific scan tools for emergency engine service, reducing tow costs and downtime.
Mack Engine Fleet Programs
Customized fleet maintenance programs for Mack-powered fleets. Scheduled oil analysis, preventive maintenance intervals, priority service scheduling, and volume pricing for multi-truck operations.
Our Service Process
We follow a proven process to ensure quality results every time
Engine Diagnostics
Comprehensive computerized diagnostics using Mack-specific scan tools to read fault codes, monitor engine parameters, and identify root causes
Mechanical Inspection
Thorough hands-on inspection of engine components, fluid analysis, compression testing, and visual assessment of related systems
Repair Plan & Estimate
Detailed explanation of findings with repair recommendations, parts options (OEM vs aftermarket), timeline, and transparent pricing
Precision Engine Repair
ASE-certified technicians perform repairs using proper torque specs, clearances, and procedures specific to Mack MP engine platforms
Performance Verification
Complete engine testing including road tests, emissions verification, boost pressure checks, and parameter monitoring to confirm proper operation
Documentation & Follow-Up
Detailed service records with warranty documentation, maintenance schedule recommendations, and follow-up support for your Mack engine
Why Choose Wayne Truck & Trailer for Mack Engine Repair Service?
Service Pricing
Starting Price
Warranty
Payment Options
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Our Work
See examples of our professional mack engine repair service services
MP8 engine diagnostics
Engine overhaul service
MP7 engine repair
DPF/SCR/EGR service
mDRIVE transmission service
Mobile engine service
What Our Customers Say
Frequently Asked Questions
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Emergency Service Available
Breakdowns don't follow business hours. Our Emergency response team is ready to help you any time, day or night.
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