Mac’s Diesel & Trailer Repair provides experienced mobile diesel mechanic services for onsite heavy-duty truck & trailer repairs in Lexington, KY & the surrounding areas in Kentucky. At Mac’s, our diesel mechanics come to your location to perform a wide range of mobile truck repair services. Call now for service.
Your truck and trailer are built tough but aren’t immune to damage from the environment. From rust to dents, having access to proper welding & fabrication services means effective repair when your truck and trailer begin to deteriorate.
Your trailer does a lot for you, so it’s only fair you give it a little love back. Mac's Diesel & Trailer Repair offers comprehensive trailer alignment services and is fully mobile. No matter how bad the trailer is misaligned, Mac can take care of it.
Keeping your bus fleet running efficiently is a matter of both earning money and customer safety. Mac's Diesel & Trailer Repair & Truck Repair offers full comprehensive inspection and maintenance services for public and private-sector buses so your buses can spend more time serving the community and less time in the yard.
PROVIDING MOBILE SERVICES TO LEXINGTON, FRANKFORT, WINCHESTER, RICHMOND, GEORGETOWN, & SURROUNDING KENTUCKY AREAS
Is your heavy-duty suspension not performing as well as it once did? Whether your ride is getting super rough or your airbags fail to build up pressure, you can count on Mac's Diesel & Trailer Repair to get your system back in shape. Call today to schedule an appointment for a mobile suspension service.
Ever wonder what protects you from the harmful emissions produced by your diesel engine? Well, that’s what your exhaust is responsible for! From protecting our natural environment to funneling emissions away from your passenger compartment, your exhaust is a critically important system.
Is your AC not keeping you cool during the summer? Is your heater not keeping you warm during those cold winter months? At Mac's Diesel & Trailer Repair, we offer extensive HVAC repair and maintenance services on a fully mobile basis. Call today to schedule an appointment for service!
Both your EGR system and your DPF are critical to the functionality of your aftertreatment system. At Mac’s Diesel & Trailer Repair, we offer everything from EGR valve repair to DPF regeneration services. Give us a call during our regular business hours to schedule an appointment for mobile service.
Get in touch with Mac’s Diesel to schedule mobile truck repair service with a mobile mechanic in Lexington, Kentucky & the surrounding areas today!
Every truck driver knows the feeling: you’re rolling through the Kentucky landscape, your load is timed tight, and then something goes wrong. A warning light pops on, you hear a new rattle, or power drops at the worst moment. After the initial frustration, the next thought is usually the same:
The development of autonomous trucking technology has not advanced beyond its current state for multiple years. The existing technology continues to achieve improvements while pilot programs expand their operations and news articles report on the advances, yet the technology needs to reach operational capacity because of its major challenge, which
Running a heavy duty truck repair shop has to consider groups of contractors who use their trucks to transport heavy materials, farmers who operate their seemingly ancient work trucks, RV owners who travel for their weekend trips, and fleet companies that need their trucks to run non-stop. Diesel repair work
The team at Mac’s Diesel and Trailer Repair helps drivers handle DEF-related derates by verifying engine and emissions system access to updated EPA-approved calibrations. The installation of these patches needs OEM-level diagnostics which must confirm two requirements: first, they must validate eligibility and second, they must check that sensors and DEF components work properly before any software alterations begin. Our method establishes system compliance through correct updates which prevent nuisance faults from reaching 5-mph limp mode while ensuring your truck maintains complete EPA compliance.
We can perform parked regenerations and advanced DPF diagnostics on-site when conditions allow. The engine control system will enable us to use professional diagnostic equipment for safe regeneration which will help remove soot loading and restore normal engine operation. We will inform you upfront that a regen will not complete because of faults or excessive ash according to data so you can avoid both derate risk and unnecessary towing costs.
New 2026 engines operate at increased temperatures because their design needs to achieve emissions standards which results in faster oil degradation. The evaluation process requires us to analyze oil life data and duty cycle information together with idle time and fuel dilution levels to decide between two options: shorter drain intervals or using higher-spec synthetic oil. The base of our recommendations comes from real operating conditions, which help fleets protect engines while avoiding unnecessary oil changes.
The team executes complete fifth wheel and kingpin assessments which follow DOT wear limits and manufacturer specifications to detect all forms of excessive movement and faulty locking mechanisms and all defects which would lead to an out-of-service violation. Detecting these problems at an early stage enables you to pass inspections while it prevents dangerous coupling failures which occur during heavy loads thus protecting drivers and ensuring the transport of goods.
Our organization performs testing because we do not support guessing. The VGT problems arise from multiple sources including actuator breakdowns and carbon accumulation and faults in the wiring system and problems with the sensors. The testing process involves calibration tests and command-response assessments and data evaluation to establish if the actuator requires replacement or if the turbocharger shows signs of damage. The diagnostic-first approach enables drivers to avoid complete turbocharger replacements while it guarantees engine reliability for the future.
