MackTech Diesel Express LLC
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About MackTech Diesel Express LLC
MackTech Diesel Express LLC operates as a diesel engine repair service in Little Elm, Texas, delivering mobile truck repair solutions across the Dallas-Fort Worth metropolitan area and surrounding corridors. The business maintains a 4.6-star rating compiled from 134 customer reviews, reflecting consistent service quality in a demanding industry. Their 24-hour availability ensures commercial drivers and fleet operators have access to emergency repairs regardless of time of day.
What distinguishes this contractor is their commitment to mobile on-site service, eliminating the need for disabled vehicles to be towed to a shop. They handle electrical diagnostics, battery systems, starters, and lighting repairs, critical systems for commercial diesel operations. The service model prioritizes rapid response, with reviewers specifically noting arrival times as quick as 25 minutes from initial contact.
Customer reviews highlight specific scenarios demonstrating their capabilities. One reviewer described Mack diagnosing and identifying dead batteries that would not hold a charge on a heavy-duty truck. Another detailed a starter and electrical issue with lights and air leaks resolved the same day. A third mentioned wiring problems on an F350 addressed promptly at the roadside. These accounts reflect practical expertise with the types of failures that strand commercial vehicles.
What Customers Say
Eight visible reviews unanimously award 5 stars, with customers specifically praising same-day arrival, quick response times, and accurate diagnostics. Multiple reviewers mention the technician Mack by name, describing professional demeanor and thorough problem identification. Reviewers emphasize mobile service, vehicles repaired at their location rather than requiring tow-in service.
Working Hours
| Sunday | Open 24 hours |
| MondayToday | Open 24 hours |
| Tuesday | Open 24 hours |
| Wednesday | Open 24 hours |
| Thursday | Open 24 hours |
| Friday | Open 24 hours |
| Saturday | Open 24 hours |
Services
Diesel Engine Diagnostics
Electrical system troubleshooting, battery testing, and comprehensive fault identification for diesel vehicles.
Battery System Repair
Battery replacement and charging system service for commercial and pickup diesel applications.
Starter & Alternator Service
Installation and repair of starting systems and charging components for diesel engines.
Lighting & Electrical Repairs
Complete electrical harness work, lighting system diagnostics, and wiring repairs.
Mobile Roadside Service
On-site repair at customer location, vehicle does not require towing to a service facility.
Air Leak Detection & Repair
Compressed air system diagnostics and leak repair for diesel commercial vehicles.