Comprehensive Diesel Maintenance Services

Truck Maintenance You Can Count On

Above & Beyond Diesel Maintenance Services

You diesel truck is a big investment. It is a key piece of your work and lifestyle. That’s why it is so crucial to make regular service and maintenance of your diesel truck a priority. Regular tune-ups help maximize the life span of your diesel rig and prevent unforeseen, high-dollar issues from cropping up. At AG Automotive, we have been servicing all makes and models of diesel trucks for almost 30 years. Our team of experienced diesel mechanics will perform comprehensive assessments of all of your trucks systems and provide best-in-class maintenance work to keep your truck running at the top of its game. Check out a full list of our services below, or better yet – just give AG a call today to get scheduled!
Diesel Particulate Filter Service / Cleaning
Diesel engine flushes will result in an increase in compression, due to dissolving, dispersing, and removing carbon around piston ring grooves.
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EGR Cooler System Service / Cleaning
An EGR cooler service will help keep your emission system in top notch shape with minimum break downs.
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VGT Turbo Service
A VGT (variable geometry turbo) service will help keep the turbo running at its best.
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Diesel Engine Oil System Cleaning / Flush
A diesel engine oil flush will help keep the engine clean and the injectors in top notch shape.
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Induction / Intake System Cleaning / Service
Induction system cleaning service will remove carbon and other deposits to improve your diesel engines throttle response, power, and fuel economy.
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Fuel Injection System Service / Cleaning
Fuel inection system need to be cleaned to give you better gas mileage, increase engine performance, restore a smooth idle and protect from possible future repairs.
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Glow Plug Replacement Service
Glow plug will eventually fail and replacement is not like replacing spark plugs, it can be more difficult and labor intensive.
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Minor Service (Oil Change)
An oil change is an easy and inexpensive way to maintain the health of your car or truck.
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Major Service – Fuel Filter, Air Filter, Lube Doors / Window / Hinges
We recommend having the commonly neglected major services completed on your vehcile once a year or every ten to twelve thousand miles.
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HVAC System Service / Cabin Air Filter
Having your vehicles HVAC system serviced will positivly impact the efficiency of the heating and cooling system in your car, not to mention the air quality.
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Automatic Transmission Fluid Service
Over time, transmission fluid picks up dirt and grim and it is important to have a the fluid serviced to prevent severe damage to your transmission.
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Brake Fluid Exchange / Service
Your brake fluid should be clear or at least translucent, if you notice a brown color, it means you should have your fluid flushed.
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AC Refrigerant System Service
Cooling system services will keep your car running at its peak temperature and help avoid costly repairs.
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Power Steering Fluid Exchange / Service
If you notice any difficulty steering your vehicle, it is time to have your power steering fluid checked.
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Timing Belt Replacement
Your vehicles timing belt should be replaced about every five years to avoid engine damage if the belt should break.
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Cooling System Service
Proper auto air conditioning system services will keep you comfortable and safe while in your vehicle.
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Tire Rotation Service
Scheduled tire rotations will give your tire longer tread life, imrove gas mileage, and increase tire performance.
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Shocks / Strut Replacement Service
If your car ride is getting increasingly bumpy or you feel your vehicle pulling in a certain driection it is time to have your shocks and struts checked.
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Clutch Fluid Exchange / Service
Clutch fluid is brake fluid, but it plays an important role in the operation of the clutch because the fluid is stored in the clutch master cylinder.
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Rear Differential Fluid Service
The differential needs to be properly lubricated in order to stay strong and to keep the wheels turning at different speeds, while still providing power to your vehcile.
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Transfer Case Fluid Service
The transfer case fluid should be changed regularly to reduce the chance of any drivability related concerns, this will prevent a future differential replacement.
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Manual Transmission Fluid Service
Manual transmissions use a more standard oil, but still need regular fluid maintenance to extend the life of the transmission.
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Front Differential Fluid Service
Your differential job is to compensate for the differences in wheel speed when turning, so it is important to make sure that the fluid is clean to keep you safe on the road.
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Windshield Wiper Blades
Wiper blades need to be checked regularly, hot air can dry and crack the blades leaving them ineffective when they are needed.
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Battery Connection Service and Replacement
Battery cables and terminals provide the necessary electrical path to transfer the battery power to the entire vehicle, so replacing older cables will provide longer battery life and alternator operation.
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DEQ Checks
Our thorough DEQ checks help ensure your vehicle is properly maintained and your emission control systems comply with EPA regulations.
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No Matter the Model, We've Got You Covered
  • Ford Diesel Repair
  • Dodge Diesel Repair
  • Chevrolet Diesel Repair
  • GMC Diesel Repair
  • VW TDI Diesel Repair
  • Sprinter Diesel Repair
  • Jeep Liberty Repair
  • Jeep Repair
  • RAM Truck Repair
  • Subaru Repair
  • And many more!
Quality Auto Repair for Portland OR & Beyond!
  • Portland OR
  • Vancouver WA
  • Oregon City OR
  • Salem OR
  • Beaverton OR
  • Hillsboro OR
  • Northeast Portland
  • North Portland
  • Gresham OR
  • Clackamas OR
  • Tigard OR
  • Tualatin OR
  • Lake Oswego OR
  • West Linn OR
  • Milwaukie OR
  • Forest Grove OR
  • Troutdale OR
  • Camas WA
  • Longview WA
  • And surrounding areas!
Get Back on the Road Quickly & Safely
Partner with us and we’ll get right to the root of your vehicle’s problem rather than just treat the symptoms.
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Don’t Second-Guess the Condition of Your Vehicle

Many auto owners struggle to know if the right work was done the right way on their car. As a courtesy, we provide digital vehicle inspections and photos so you can quickly and easily see what our experienced, professional technicians are seeing. Overall, we go the extra mile to help you make informed decisions on the repair and maintenance plan of your vehicle, so you can drive with confidence every time you get behind the wheel.