Diesel Tech
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Claim This BusinessAbout Diesel Tech
Diesel Tech operates as a diesel engine repair specialist serving Hemet and the broader Inland Empire with a 4.8-star rating drawn from 96 customer reviews. The shop has maintained operations since 2004, focusing exclusively on light and medium-duty diesel commercial vehicles, delivery vans, utility rigs, and individual trucks powered by Ford Power Stroke, Dodge Cummins, and Chevy Duramax engines. Their certified technicians handle priority preventive maintenance, advanced diagnostics, and complete mechanical repairs designed to minimize business downtime and keep personal rigs road-ready.
What distinguishes Diesel Tech is their OEM-trained technician staff equipped with OEM diagnostic equipment and OEM parts, ensuring repairs meet manufacturer specifications. The facility offers fleet services for commercial operators managing multiple vehicles, alongside specialized van conversions, suspension kits, and Clean Truck Check services for emissions compliance. This combination of factory-level training, purpose-built equipment, and comprehensive fleet support creates a repair environment uncommon among general-purpose mechanical shops.
Customer reviews repeatedly highlight the team's accessibility and diagnostic skill. When Derek Smith's 7.3 Power Stroke developed towing issues, the shop resolved it and Juan communicated with him after hours and weeks later whenever questions arose. Jeff Bicknell described how his 2005 E350 with a 6.0 Power Stroke was diagnosed with a bad injector rather than the more extensive repairs he had anticipated, and the team explained which of his suggested upgrades were worthwhile. Andrew Quesada noted they work on all major diesel brands and recommends them highly for any diesel vehicle needs.
What Customers Say
Six reviewers specifically mention same-day or walk-in service availability, with William Arkens noting he arrived without an appointment and received immediate assistance. Four reviewers name individual technicians, with Juan and Jeremy receiving multiple mentions for their communication and patience navigating warranty claims. All reviewers award five stars, with common praise for diagnostic accuracy and honest assessments.
Working Hours
| Sunday | Closed |
| Monday | 8 AM–5 PM |
| Tuesday | 8 AM–5 PM |
| WednesdayToday | 8 AM–5 PM |
| Thursday | 8 AM–5 PM |
| Friday | 8 AM–5 PM |
| Saturday | Closed |
Services
Diesel Engine Diagnostics & Repair
Advanced diagnostics and complete mechanical repairs for light and medium-duty diesel engines using OEM equipment.
Fleet Services
Priority maintenance and repair programs for commercial diesel fleets designed to minimize business downtime.
Preventive Maintenance
Scheduled service intervals including fluid changes, filter replacements, and system inspections for diesel vehicles.
Van Conversions
Conversion services for delivery vans and utility rigs, tailoring vehicles to specific business or operational requirements.
Suspension Kits
Installation and upgrade of suspension components for diesel trucks and commercial vehicles.
Clean Truck Check
Emissions compliance testing and verification services for California diesel vehicles requiring smog certification.