Truck Repair and Maintenance

Roseville, CA & the Surrounding Areas

Since 2013, locally owned & operated Patriot Diesel has been providing expert diesel truck repair & truck maintenance.

White lifted Ram pickup truck with large tires parked outside.

We specialize in light and medium duty diesel truck repair services.

White lifted Dodge Ram truck with large tires parked on wet pavement.

Trust our skilled truck mechanics to keep your vehicle healthy.

Blue Ford Raptor truck driving down a road, with a person waving from the window.

Visit our gallery to learn more about our local truck repair shop.

Expert Diesel Truck Repair and Truck Maintenance

Our skilled technicians specialize in serving light- and medium-duty diesel trucks manufactured by Chevrolet, GMC, Dodge, RAM and Ford, as well as other makes. From routine oil changes, exhaust fluid service and other diesel maintenance, to complex diesel engine repairs, brake jobs, suspension repair and general diagnostics, you can rely on us to take expert care of your rig. While we are well-versed in the needs and service of PowerStroke, Duramax, and Cummins engines, our team is happy to service your gas truck as well. We have the tools, resources and knowledge to ensure your truck, no matter its year, make or model, gets the service it needs and deserves. To learn more, or to request a quote for the cost of diesel truck repair in Roseville, please give us a call at your convenience. We’re happy to answer any questions to help you make an informed decision about your vehicle.

Ivan Roque | Owner

Diesel Repair Specialists

Light Duty & Medium Duty Trucks

Gas & Diesel Engine Repair

Diesel Diagnostics

Brake, Steering & Suspension Repair

Air Conditioner Repair

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Gas & Diesel Truck Maintenance

30/60/90/120K Services

Oil Change & Filter Replacement

Free Truck Repair Estimates

Cummins, Duramax & PowerStroke

Dodge, Ram, Chevy & Ford

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As a local truck shop, the team at Patriot Diesel is proud to help our friends and neighbors in Roseville, Citrus Heights, Rocklin and the surrounding California towns keep their rigs running strong. Whether it’s your daily driver, a horse hauler or your commercial work truck, we’re your one stop shop for trucks. To ensure we’re able to provide the best diesel repair in Roseville and the surrounding area, we have invested in modern tools and computer diagnostic equipment and undergo continuous training to stay up to date with the latest advances in automotive technology and service. This all amounts to us being a true dealership alternative for your truck’s well being. When your gas or diesel truck gives you trouble, or if it is time to schedule routine truck maintenance in Roseville, don’t hesitate to call Patriot Diesel at 916-292-8643. We’ve got your truck covered, no matter its needs!

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Customer Reviews

Your business is very appreciated.

G and stars

I came in because my truck was leaking a river of coolant. The diagnostic fee was reasonably priced and their turnaround and communication was top notch. I’ve been looking for a reliable shop I can trust and definitely feel like I’ve found that in Patriot Diesel. 10/10 would recommend.


- Scott L.

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Blog

We invite you to monitor our News Blog for informative articles.

FAQs About Diesel Truck Cooling System Repair

By Patriot Diesel • February 28, 2026
A diesel truck’s cooling system is essential for maintaining proper engine temperature and preventing overheating. Because diesel engines generate significant heat—especially when towing or hauling heavy loads—the cooling system must function efficiently at all times. When components begin to fail, it can lead to performance issues, engine damage, and costly downtime. Understanding how the cooling system works and recognizing common concerns can help truck owners stay ahead of major repairs. At Patriot Diesel, we’re happy to answer your questions about diesel truck cooling system repair in the greater Roseville, CA area. What Does the Cooling System Do in a Diesel Truck? The cooling system regulates engine temperature by circulating coolant through the engine block and radiator. As the coolant absorbs heat from the engine, it travels to the radiator where the heat is released before the fluid cycles back through the system. Key components include the radiator, water pump, thermostat, cooling fan, hoses, and coolant reservoir. Together, these parts help ensure the engine operates within a safe temperature range, even under heavy workloads. What Are Common Signs of Cooling System Problems? Cooling system issues often present noticeable warning signs. An overheating engine is one of the most obvious symptoms. Drivers may also notice coolant leaks under the truck, low coolant levels, steam from under the hood, or a dashboard temperature gauge that reads higher than normal. A sweet smell from the engine bay can indicate a coolant leak. Addressing these signs promptly helps prevent severe engine damage. What Causes Diesel Cooling System Failures? Several factors can lead to cooling system problems. Over time, hoses can crack and radiators can become clogged with debris. Water pumps may wear out, preventing proper coolant circulation. Thermostats can also fail. In diesel trucks that handle heavy-duty work, increased strain and high operating temperatures can accelerate wear on these components. Why Is Professional Repair Important? Diesel engines are built for power and durability, but improper cooling system repairs can lead to serious consequences. Professional technicians understand the specific requirements of diesel engines and use the correct tools and replacement parts. Ensuring proper coolant mixture, pressure levels, and component installation helps protect the engine from overheating and premature wear. Where Can I Get Diesel Truck Cooling System Repair in Roseville, CA? For expert diesel and gas truck cooling system repair in Roseville and the surrounding area, contact Patriot Diesel at  916-292-8643  . Our nearby diesel mechanics can expertly handle your truck’s repair and maintenance needs!