My egr cooler took a dump, I saw the engine tore apart, major job. John did the delete job on my 05 Deisel. This was about 3 weeks ago. This weekend I hauled my 33 foot 5th wheel to fort stevens by Astoria coming from Newberg. Highway 26 has some serious hills and the truck had no problem. Great work, I definitely recommend advanced diesel,

Great local shop works on a variety of machinery, diesels, (Cummins Powerstroke and Duramax)farm tractors, semis & more...

After John having checked out our truck, he said it needed a new computer. We looked and looked for one with no luck finding one. Then he said it was the turbo, after that he said it was the wire harness. WE got a new wire harness and took it to him. John contacted us saying our truck was ready to be picked up. Our truck didnt even make it a half mile from his shop when it quit running. We had to have it towed home. The wire harness we took him was never installed. Truck still has original harness on it. After paying over a couple thousand John couldnt figure out what was wrong with our truck. I would not advise anyone to take their truck to this business.

Advanced Diesel Service treated me right,John and his guys did a complete injector replacement for me.John got me in right away, diagnosed it quickly, then called and updated me just like he said he would, got the work done on time, and other than the engine being cleaner youd never know it was apart.

Ive trusted all my vehicles to John for 14 years. I wouldnt trust anyone else.

Trust worthy and extremely knowledgeable ...My tuck was broke down in Oregon however I was and am living in kansas..I allowed him to do all that he recommended with out even meeting him..when I pickhed up my truck several months later it was running better then ever..so no worries with John I would recommend him to anybody

I have John do all our work on our trucks. We own a farm in the area and he is a skilled mechanic who wont rip you off.