DIESEL PERFORMANCE MODIFICATIONS & UPGRADES
Diesel Performance Portland Oregon Service & Installation
Cummins Automotive & Diesel Service offers diesel electronic injection services and we guarantee our work, standing behind each repair and decision based on years of excellence and close relationships with our customers, ensuring you get your choice of standard manufacture spec diesel performance or diesel high performance upgrades in the Portland area. We have years of experience in fuel injection, performance modification upgrades and diesel engine repair. Our performance packages are based on research and they are individually designed for your diesel engine. We provide a full range of maintenance and repair services and work on Dodge, Ford, GM, Cummins, CAT, Detroit, MaxxForce, Mercedes-Benz, Navistar-International, Sprinter and Volvo diesels. We also do testing and repairs onsite with our mobile service truck.

Welcome to the Cummins Automotive & Diesel Service Electronic Injection Services
The Cummins Automotive & Diesel Service’s electronic injection service started as a Cummins family owned business, the testing and repairing of diesel engines and injectors which developed into a service in which we serve nearly a hundred corporate fleets and companies in the Pacific Northwest who depend on us to keep their trucks and RV motorhomes running in top shape, assuring reliability and safety.
Since then Cummins Automotive has developed the reputation as one of the areas most respected medium and heavy duty truck repair shops in the Northwest. With years of experience in fuel injection, performance modification upgrades, and diesel engine repair, Cummins Automotive & Diesel Service strives to provide our customers with the best quality products and service.
Cummins Automotive offers a full range of services and installations on Dodge, Ford, GM trucks and on Cummins, CAT Caterpillar, Detroit, MaxxForce, Mercedes-Benz, Navistar-International, Sprinter and Volvo diesel trucks. Whether you use your diesel truck for work or recreation, we can provide you with onsite testing, diagnostics, rebuilds, overhaul, repair and remanufacturing of major parts.
We take pride in more than just installing performance products. We research and design specific packages for your truck, from standard performance packages to high performance horsepower upgrades and modifications. With the latest testing technology and equipment, we are one of the repair shops in the Portland area who can test, repair, and rebuild fuel injectors at your location onsite for Dodge, Ford, GM, Cummins, CAT Caterpillar, Detroit, MaxxForce, Mercedes-Benz, Navistar-International, Sprinter and Volvo.
Cummins Automotive & Diesel Service would like to provide your electronic injection service, giving diesel owners in the Oregon and Pacific Northwest another option to go to for repairs, for power modifications, and for performance upgrade products. Join our customers with whom we have developed close relationships, those who have come to know it is safe to depend on us to keep their trucks and RVs running in top shape.
Fuel Lift Pump Upgrade – Fuel Air Separation System


Get a diesel performance upgrade with an AirDog or FASS diesel fuel lift pump, fuel air separation system. An upgrade lift pump can be a beneficial modification for Ford Power Stroke, GM Duramax, and RAM Cummins diesel engines. Factory fuel lift pumps can put stress on injection pumps when pulling fuel under vacuum and factory fuel lift pumps increase the risk of introducing additional air into the fuel. High pressure lift pumps with inadequate fuel supply can cause injection pump failure. A failed injection pump can damage the high pressure fuel system, including the injectors. The AirDog and the FASS performance upgrade fuel lift pumps eliminate air from the supply system, remove water, precondition the fuel to finer microns, and pressurize the supply system for consistent, clean, and adequate fuel supply to the injection pump.
Extra Benefits With AirDog 4G Fuel Lift Pumps
Get the added benefits with the AirDog 4G lift pump, including improved throttle response, longer injection system life, increased power and torque, reduced exhaust emissions, higher than stock flow rates in some models, adjustable fuel pressure regulator, and quiet, smooth pump operation. Unlike many competitors and older AirDog lift pumps, the 4G is more durable than any other fuel lift pump brushed DC motor system available.
How The AirDog Works – YouTube Video
Get your diesel fuel lift pump air separation system performance upgrade at Cummins Automotive & Diesel Service. Call (971) 832-0739 for service.

Services We Offer
Diesel Performance | Diesel Mechanic | Diesel Fuel Injection | Diesel Maintenance | Diesel Engine Repair | Diesel Service | Diesel Repair | Diesel Transmission | Dodge Diesel Repair | Ford Diesel Repair | GM Diesel Repair | Isuzu Diesel Repair | Cummins Diesel Repair | CAT Caterpillar Diesel Repair | Detroit Diesel Repair | MaxxForce Diesel Repair | Mercedes-Benz Diesel Repair | Navistar-International Diesel Repair | Sprinter Diesel Repair | Volvo Diesel Repair |
