• Mon - Fri 7.30 AM - 5.00 PM
  • 24309 Creekside Rd #110 Valencia, CA 91355
  • (661) 259-7098

Diesel Repair in Valencia, CA


Schedule Diesel Auto & Pickup Truck Repair at RG Brakes & Alignment Today


Driving a diesel vehicle is a statement in itself. It’s about power, performance, and longevity. But when it comes to maintaining these powerhouses, you need a specialist who understands the intricacies of diesel engines. Situated in the heart of Valencia, CA, RG Brakes & Alignment is not your ordinary auto repair shop. We are a team of ASE-certified mechanics with a specific focus on diesel auto and pickup repair. With over 35 years of experience under our belt, we’ve built a reputation for quality, reliability, and unparalleled expertise in the Santa Clarita Valley.

Whether you drive a European, Japanese or domestic diesel car, SUV or light pickup, we’ve got you covered. Our services are tailored to meet the unique needs of diesel engines, and our hands-on, customer-focused approach ensures that you’re back on the road in no time. Call us and make an appointment for routine maintenance, oil change, brake repair and wheels or for the most complex repairs related to diesel engines – turbochargers, EGR valve or decarbonization.

Diesel Repair Services in Valencia, CA

We Provide Diesel Repair Services

Now, what makes diesel repair different? Diesel engines, while known for their durability and fuel efficiency, have unique needs compared to their gasoline counterparts.

Our mechanics are well-versed in identifying and fixing these types of issues specific to diesel engines. Here are some of the comprehensive diesel-specific services we offer:

Diagnosing and fixing starting issues

Problems with starting can indicate issues with low compression or fuel delivery. We diagnose and fix these issues to get your vehicle back on the road.

Black exhaust treatment

Black exhaust fumes can be harmful to the environment and may be due to an improper air/fuel ratio. We can identify and fix the root cause, such as a faulty injector or EGR valve.

Dealing with oil oxidation and moisture contamination

Diesel oil can oxidize or get contaminated with moisture if your vehicle sits unused for long periods. This can lead to wear on engine components and increased fuel consumption. We can change oil and inspect the vehicle to prevent these issue.

Addressing low power issues

Reduced power, especially during acceleration or going uphill, could indicate a problem with the fuel or fuel delivery. We can identify and fix these issues to restore the vehicle’s power

Checking and maintaining high compression ratios

Diesel engines work at high compression ratios. We regularly check your engine’s compression ratio to prevent issues like bad burn patterns and worn-out fuel injectors

Repairing faulty glow plugs

Difficulty starting your vehicle in cold weather may be due to a malfunctioning glow plug. We can identify and replace faulty glow plugs to ensure your vehicle starts smoothly in any weather

Addressing fuel contamination

We check the quality of your fuel to avoid issues like water, soot, or chemical contamination, which can cause serious engine damage

Correcting oil weight viscosity

Using the wrong oil weight viscosity can lead to starting problems and potential engine damage. We ensure the correct oil is used for your specific diesel engine

Along with diesel-related issues, our specialists under the hood are here for you in case you need a tune-up, battery replacement, engine diagnostic, A/C repair, drive line repair, transmission repair, AW drive, Four-wheel drive, lift and leveling kit installation and everything in between. Call us at (661) 259-7098 and book your appointment.

We Service and Repair Duramax, Power Stroke, Cummins and European Diesel Engines

At RG Brakes & Alignment, our expertise encompasses a broad range of diesel engine brands. Whether your vehicle is powered by a resilient Duramax, a robust Power Stroke or dependable Cummins, you can trust our mechanics to deliver top-tier service.

We also work on various European and Japanese diesel engines, so whether you’re driving a TDI-equipped Volkswagen or a diesel-powered Toyota, we have you covered. Our team stays up-to-date with the latest technologies and repair methodologies to ensure your vehicle receives the best care possible. No matter the brand, you can have confidence knowing that your diesel vehicle is in the hands of specialists who truly understand the mechanics of your engine.

#1 Car Repair Shop
in Valencia Since 1987

Cars Repaired
Happy Customers
24 Month Warranty

What Sets RG Brakes & Alignment Apart from Other Diesel Repair Shops in the Area?

  • Dealer-Level Diagnostics and Service at a Fraction of the Cost: We deliver the same level of precision and expertise as a dealership but without the hefty price tag. Experience top-notch diesel engine diagnostics and service that won’t break the bank.
  • Independence with a Personal Touch: As an independent shop, we offer personalized service that big chains can’t match. We know you and your vehicle by name, not by an invoice number.
  • Commitment to Quality with OEM Parts and Oils: We use only Original Equipment Manufacturer (OEM) parts, oils, and lubes. This commitment to quality ensures your vehicle performs at its best and lasts longer.
  • Two-Year Warranty for Peace of Mind: We stand behind our work. All our parts and labor come with a two-year warranty. It’s our guarantee of quality and your assurance of reliability.
  • Complimentary Multi-Point Diagnostics: We believe in proactive care for your vehicle. That’s why we offer a free car multi-point diagnostic service to spot potential issues before they become costly repairs.
  • Quick and Easy Online Appointments: We value your time. That’s why we offer a fast and convenient online appointment system. Book your service in just a few minutes.

Diesel Repair, Maintenance and Upgrade in Valencia Santa Clarita


We handle a wide range of repair, upgrade and maintenance tasks to keep your diesel vehicle in top shape. When you choose RG Brakes & Alignment, you’re choosing a team of experienced, ASE-certified mechanics who care about your vehicle as much as you do. We invite you to visit us at 24309 Creekside Rd #110, Valencia, CA 91355, or give us a call at (661) 259-7098. We’re here to keep your car or truck running at its best. Experience the RG Brakes & Alignment difference today!



    NOTE: Please submit your appointments at minimum 24 hours in advance. No appointments for Saturday - first come, first served!

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