Diesel Guru's

Diesel Guru's operates as a diesel engine repair service serving the Metro Atlanta area, with physical locations in Atlanta and Fairburn, Georgia. The business maintains a 4.4-star rating drawn from 104 customer reviews, reflecting consistent service quality over years of operation. Their team of certified diesel mechanics provides mobile and on-site repair services throughout the region, handling light, medium, and heavy-duty commercial vehicles including semi-trucks and delivery fleets.

What distinguishes Diesel Guru's is their comprehensive mobile repair capability and round-the-clock availability for roadside assistance. They utilize high-tech diagnostic equipment to identify electrical and computer issues accurately, promising first-time correct repairs. Their service menu extends beyond engine work to include DPF cleaning for improved performance and reduced downtime, air brake system repairs, welding and fabrication services, and specialized HVAC repair for semi-trailer cooling systems. They emphasize using only quality replacement parts, filters, oils, and components.

Reviewers consistently highlight technician Jay B for exceptional service. One customer described Jay acquiring necessary parts and tools immediately upon hearing the truck issue, completing repairs in a timely manner with the truck running smoothly upon return. Another reviewer noted Jay staying past closing to complete a same-day repair after being promised completion by 5 PM. A third reviewer praised the team's work on windshield replacement, bumper work, and electronic repairs for a fleet vehicle, noting they went above beyond to ensure quick turnaround. The mobile mechanic service resolved a clogged DEF system issue at a truck stop for another customer, with reasonable pricing and no subsequent problems.