Devil Mountain Diesel provides professional factory diesel repair services to Walnut Creek, Concord, and the entire Bay Area. They are light duty domestic diesel professionals with over a decade of factory training and warranty repairs, offering a cost-effective dealer alternative. Their staff includes ASE Certified Master Technicians dedicated to quality and expert service. Reviews highlight that the guys are very knowledgeable, honest, and transparent. They perform thorough maintenance and repairs using quality parts, with work described as top notch. Customers report receiving more thorough service than at a dealer or previous facilities, often at a fraction of the cost. The knowledgeable staff provides clear diagnoses and points out additional components in need of attention, preventing larger future expenses. They are commended for not price gouging when new issues arise. The shop is recommended for expertise and thorough work, with passionate staff who plan strategic roadmaps for vehicle upgrades and performance. Customers report amazing performance after services and upgrades, experiencing great results and peace of mind. The experience is consistently described as amazing, with many customers stating they will return for future work and highly recommend the business.
Guys are very knowledgeable. They fixed my 6.4 with quality parts and work. After getting ripped off at another “reputable” shop these guys were honesty and transparent with the work being done. Highly recommend
January 2024
These guys are good. They took good care of my 6.0 power stroke.
February 2023
Josh fixed my truck that four other places tried and failed. For your trucks. No other place takes care and knows about diesels better than these guys.Service: Auto engine diagnostic
