12410 NE Whitaker Way, Portland, OR  97230     Phone (503)-253-1747 or  (306)-695-6927

~Cooper Tires 2014 Spring Sales Event~
March 1st through April 15th

Get up to $80 back on Cooper tires!
Buy four qualifying Cooper tires and get up to an $80 Cooper Tires prepaid card by mail.


Save your tires.
Stay Aligned!

Have you heard?  All of the new equipment has arrived and we have installed the latest and greatest alignment machines to meet your needs. 

What are some easy-to-notice symptoms of a misaligned vehicle?
-Excessive or uneven tire wear
-Vehicle drift or pull
-A feeling of looseness or wandering
-A misaligned steering wheel

How often should I have my vehicle aligned?
-As a general rule, have your wheel alignment checked every 10,000 miles or at least once a year.



Do you own a GM or Dodge common rail diesel truck?

AirDog® Fuel Air Separators help diesel engines in a variety of ways, including providing better fuel delivery by removing air, water, particulates and vapor from the fuel.  This helps maintain an optimal fuel flow and improves fuel economy, reduces exhaust emissions and helps increase injector life and transfer pump life (in Class 8 semi trucks). AirDog® products also improve throttle response, and boosts the horsepower of diesel engines for maximum performance.
Click here to see how AirDog Fuel Air Separators work.

Services & Specialties

AG Diesel Repair specializes in taking care of you and your light-duty diesel vehicles so you will have a truck, car, or van that is both reliable and efficient. We realize the high cost of fuel today is a major concern. Our belief is that every vehicle, no matter the make, can be a great asset to you, the owner, when properly maintained. We love happy customers and efficient vehicles that have the lowest impact on our environment and your wallet.

Our Mission is to provide you with top-quality vehicle service and repair.

AG Diesel Repair's Quality Assurance

It is our strong belief that taking care of you, the customer, and your vehicle is our #1 priority. To do this, we provide you with only the best ASE Certified Technicians to work on your vehicles. We use only top quality parts that meet or beat original equipment manufactured parts standards. If we cannot provide you with a better part, we will use the OEM part. All of our work is backed by a 12-month or 12,000-mile guarantee, or better, depending on the part installed. We take the time to research the cause of the vehicle break-down, so that way we can not only fix the problem but also fix the cause of the problem. Most of the time, this involves a better than OE maintenance program.

Our Mission to our Environment and Community

We love the Great Northwest and do everything we can to keep it clean, from keeping your vehicles running at peak efficiency to recycling everything possible. This keeps our environment Green and also keeps more Green in your Wallet.


Our Specialties:

  • Ford Light Duty Diesel Repair
  • Dodge Light Duty Diesel Repair
  • Chevrolet Light Duty Diesel Repair

  • GMC Light Duty Diesel Repair
  • VW TDI Light Duty Diesel Repair
  • Sprinter Light Duty Diesel Repair

We also have ASE Master Technicians to take care of all your diesel and gas vehicle needs from bumper to bumper. 

This Includes:

  • Engine Repair (Diesel or Gas)
  • Computer Diagnostics
  • Transmission Repair

  • Suspension and Steering Service and Repair
  • Fuel Injection Service and Repair
  • Drivetrain Service and Repair