SAN DIEGO DIESEL TRUCK SERVICE & REPAIR

LTEK Diagnostics is a diagnostics-first diesel repair shop in San Diego. We focus on identifying root causes, not guessing or throwing parts at trucks. Our process is transparent, fast, and built around minimizing downtime for owner-operators and fleets, bringing you over 30 years of experience.

LTEK Diagnostics provides an extensive range of services tailored to the needs of fleet owners and individual operators. Our core services include:

• Advanced Diagnostics: Using cutting-edge diagnostic tools to quickly pinpoint and resolve any issues.

• Engine Repairs and Rebuilds: Expertise in major diesel engines, including Cummins, Detroit, and Paccar, with full engine rebuild services available.

• Preventive Maintenance Programs: Comprehensive maintenance, including oil changes, fluid checks, and detailed inspections to prevent breakdowns.

• Automatic & Manual Transmission and Drivetrain Solutions: Specialized repairs and replacements for transmissions, clutches, and drivetrain components.

• Electrical System Diagnostics and Repair: Full-service electrical diagnostics and repairs to ensure operational reliability.

• Brake and Suspension Overhaul: Maintenance and repairs on all brake and suspension components to ensure maximum safety and performance.

• Fleet Maintenance Plans: Customized maintenance packages designed for businesses with multiple trucks, maximizing uptime and efficiency.

• OEM and Aftermarket Parts Sales: We offer a full range of high-quality parts, with expert installation services available.

Whether you're managing a large fleet or a single vehicle, LTEK offers reliable, industry-leading solutions for all your diesel service needs.

Yes, LTEK Diagnostics provides mobile mechanic services within San Diego County. Our skilled technicians can come to your location to perform diagnostics, repairs, and maintenance, ensuring minimal downtime for your vehicles. Whether it's an emergency breakdown or routine maintenance, our mobile team is fully equipped to handle on-site service, saving you the time and effort of bringing your truck to the shop.

Our clients include fleet owners, trucking companies, and individual operators who depend on reliable, efficient service to keep their businesses running. We service a wide range of diesel trucks, including Freightliner, Peterbilt, Kenworth, Volvo, and other leading brands. LTEK's expertise spans across multiple truck makes and models, ensuring we can meet the needs of diverse clientele.

Yes. We specialize in fleet maintenance and compliance, offering scheduled inspections, preventative maintenance programs, and fast diagnostics to keep fleets legal and operational.

Yes. We perform DOT inspections, BIT inspections, 90-day inspections, and CARB Clean Truck Check testing, including required repairs to help trucks pass compliance.

At LTEK, we believe transparency is essential to building trust with our clients. Before any work begins, we provide detailed estimates and walk you through the process to ensure you are fully informed. Our no-hidden-fee policy guarantees that there are no surprises, and we maintain open communication throughout the repair process to keep you updated on the progress of your vehicle.

Yes. All repairs come with a workmanship warranty, and parts are covered by the manufacturer’s warranty unless otherwise stated.

Diagnostics are prioritized. In many cases, we can provide same-day diagnostics depending on workload and severity of the issue.

Because downtime costs money. We’re built for accuracy, speed, and transparency, not guesswork. Our goal is to get your truck fixed right and back on the road.