General Diesel Repair Services
in Willows, CA & Across Northern California

Providing services throughout Northern California, with Mobile DIesel mechanics in Willows, Red Bluff, Corning, Oroville, Biggs & Yuba City, CA

At L & T Truck Repair, we understand the demands of diesel engines and their vast systems. We pride ourselves on offering comprehensive diesel repair services tailored to meet the needs of your diesel trucks, trailers, and fleet vehicles.

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Diesel mechanic performing diesel truck repairs in Willows, CA

Comprehensive Diagnostics: The First Step to Diesel Efficiency

Before any repair begins, accurate diagnostics are crucial. Our technicians utilize the latest technology to perform thorough inspections and diagnostics. From ECU issues to exhaust aftertreatment systems, we ensure every component is scrutinized to pinpoint the exact service your vehicle requires.

Fuel System Services: Optimizing Performance

The fuel system is the lifeline of your diesel engine. Our team is adept at servicing high-pressure common rail (HPCR) systems, ensuring your injectors, fuel pumps, and filters function correctly. This not only maximizes fuel efficiency but also enhances engine performance and longevity.

Engine and Powertrain: The Core of Your Diesel Vehicle

A diesel engine is only as reliable as its powertrain. L & T Truck Repair specializes in major engine overhauls, powertrain repairs, and routine maintenance. Whether addressing turbocharger complications or rectifying driveline issues, we handle them with precision and care.

Cooling System Maintenance: Preventing Overheating

Diesel engines run hotter than gasoline, making cooling system maintenance imperative. We service radiators, water pumps, and cooling fans, ensuring they are in top condition to prevent overheating and subsequent engine damage.

Exhaust and Emission Controls: Staying Environmentally Compliant

Modern diesel engines come with complex emission control systems. Our technicians are versed in servicing Diesel Particulate Filters (DPF), Selective Catalytic Reduction (SCR) systems, and Exhaust Gas Recirculation (EGR) valves. Keeping these components in check is essential to comply with environmental regulations and maintain engine efficiency.

Transmission and Clutch Repairs: Ensuring Smooth Operation

The transmission and clutch are vital for the smooth operation of your diesel vehicle. Whether it's manual or automatic transmission, our team provides comprehensive services, from fluid changes to full rebuilds, ensuring your vehicle shifts smoothly and reliably.

Suspension and Steering Repairs: Maintaining Control and Stability

A well-maintained suspension and steering system are essential for the control and stability of your diesel vehicle. We offer comprehensive services, from shock and strut replacement to wheel alignment and steering adjustments, ensuring your ride is smooth, and your handling is precise.

Brake Services: Safety as a Priority

Brake systems in diesel trucks and trailers are critical for safety. We provide complete brake services, including ABS diagnostics and repairs, pad replacement, and hydraulic system servicing. Our attention to detail ensures your vehicle remains safe on the road.

Preventive Maintenance: The Key to Longevity

Preventive maintenance is the most effective way to prolong the life of your diesel truck, trailer, or fleet. We provide tailored maintenance schedules based on manufacturer recommendations and your vehicle's needs. Regular oil changes, filter replacements, and fluid checks are just the beginning of our meticulous maintenance regimen.

Fleet Services: Keeping Your Business Moving

For businesses that rely on a fleet of diesel vehicles, downtime is not an option. L & T Truck Repair offers dedicated fleet services to ensure your vehicles are always road-ready. Our team works efficiently to minimize disruptions and keep your operations running smoothly.

Schedule Your Service Today

L & T Truck Repair is your premier destination for all diesel repair needs. With a commitment to quality, precision, and customer satisfaction, we ensure your diesel trucks, trailers, and fleets receive the best care possible. Visit us in Willows, CA, and experience the difference expert hands make.

Our Diesel Mechanic services

At L & T Truck Repair, we understand the intricacies and demands of diesel engines and their vast systems. We pride ourselves on offering comprehensive diesel mechanic services tailored to meet the needs of your diesel trucks, trailers, and fleet vehicles. Our state-of-the-art facility is equipped with advanced diagnostic tools and staffed by ASE-certified technicians committed to ensuring your diesel vehicles operate at peak performance.

Customer testimonials

"We were stuck at Walmart and Andrew from L & T trucking came through and saved the day. What a great guy he was in a good mood and made everybody feel comfortable that things were gonna work out. Thank you Ellen T we will always recommend you and use your services."
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Matthew Evans

"Our motorhome broke down on interstate 5. Dispatcher was very helpful finding a diesel repair shop and had a tow truck there to tow us to Redding CA. James the tow truck driver was wonderful.  Very helpful. Thank you so very much."
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Sally Thomsen

"Levi and the guys at L & T Truck Service did an awesome job getting Bird Dog Fire's Engine 627 back online to continue working the August Complex fire after 14 days of abuse on the fireline and 5 days of travel from Florida."
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Carlos Gutierrez

"Very happy with the service, if ever needed again I will definitely go back!"
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Heather Alvarez

Had a great experience with L & T Truck Repair? Let us Know!

Contact & Location

For heavy-duty truck repair and fleet services in Northern California, visit our shop in Willows, CA, or request service from our mobile diesel mechanic team in Red Bluff, Corning, Biggs, Oroville & Yuba City, CA. Give us a call, send us an email, or fill out our service request form!


Mon - Fri: 7am - 4pm
Mobile Services - 24/7
After hours by appointment only