Ram Truck Repair & Service
Ram trucks are built to last, with a reputation for toughness and capability. Headlining that reputation is the legendary Cummins turbo-diesel engine. At Performance Authority in Bend, we are Ram truck specialists, with an unmatched level of expertise in Cummins diesel repair and service.
Central Oregon's Premier Cummins Repair Shop
The Cummins engine is the heart of your Ram HD, and it deserves expert care. We are the go-to shop in Bend for Ram owners who demand the best. Our technicians have extensive experience with all generations of the Cummins platform.
- 5.9L & 6.7L Cummins Service: We are experts in diagnosing and repairing everything from the “killer dowel pin” (KDP) on older 12-valves to injection pump (VP44, CP3) issues, turbo actuator failures, and emissions system problems (DPF/EGR) on modern 6.7L engines.
- Fuel System Expertise: We provide complete fuel system service, from lift pump replacement to injector testing and replacement.
- Comprehensive Diagnostics: For any Cummins repair bend need, we have the advanced diagnostic tools to find the problem quickly and accurately.
HEMI & Gas V8 Engine Specialists
Beyond the Cummins, we are also highly experienced in servicing Ram’s powerful and popular gas engines. Whether you have a HEMI V8 or a Pentastar V6, we provide expert, bumper-to-bumper service to keep it running strong. We specialize in solving the most common HEMI issues:
- The “HEMI Tick”: We are experts at diagnosing and repairing this common issue, which is often caused by lifter and camshaft failure. We provide durable solutions to protect your engine.
- Exhaust Manifold Bolt Repair: We routinely fix broken exhaust manifold bolts, a frequent problem that causes exhaust leaks and ticking noises.
- Cooling System Service: We handle common failures like water pumps and thermostats to prevent overheating and ensure your HEMI runs at the proper temperature.
- Performance & Maintenance: From performance tuning to meticulous oil changes and tune-ups, we provide the expert care your Ram gas engine deserves.
Complete Care for Your Ram Truck
We understand the entire Ram platform, from light-duty to medium-duty models.
- Suspension Repair: We fix common Ram suspension issues, including track bar and ball joint wear.
- Transmission Service: Complete maintenance and repair for Ram transmissions.
- Electrical System Diagnostics: We can solve the complex electrical gremlins that can plague modern trucks.
Book Your Ram Truck Service in Bend
For Ram truck repair you can count on, bring your vehicle to the experts at Performance Authority. We are passionate about these trucks and dedicated to providing the highest quality service.

Can’t find the auto service you’re looking for?
At Performance Authority, our team combines decades of hands-on experience with the latest tools and diagnostics to deliver comprehensive care for your truck — whether it’s gas or diesel. From routine maintenance and brake jobs to advanced engine repairs, driveline service, electrical troubleshooting, and heating & A/C repair, we handle it all under one roof. As a family-owned shop built on trust, quality, and transparency, we’re here to keep your truck running strong — mile after mile.
FAQs
For most diesel trucks, we recommend full maintenance every 5,000 to 7,500 miles, depending on usage and driving conditions. Regular upkeep—including oil changes, filter replacements, fluid checks, and inspections—keeps your diesel running stronger, longer.
Our transmission service includes fluid inspection and replacement, filter changes, diagnostics, and full rebuilds or replacements if needed. Whether you’re dealing with slipping gears or delayed shifting, we’ll restore smooth performance.
Common signs include uneven tire wear, bouncing after bumps, steering instability, or a rough ride. We inspect shocks, struts, springs, and bushings—then repair or upgrade your suspension for better handling and durability.
We inspect pads, rotors, calipers, brake fluid, and lines for wear or leaks. Whether you need a basic pad replacement or a full brake system overhaul, we ensure your truck stops safely and reliably every time.
Warning lights, poor fuel economy, rough idling, or lack of power are all signs your engine needs a checkup. We use advanced scan tools and hands-on testing to pinpoint issues—no guesswork involved.
Diesel engines run hotter and under more pressure than gas engines, making clean oil essential. Routine oil and filter changes reduce wear, boost efficiency, and extend engine life—especially if you haul or tow frequently.
We perform a full visual and mechanical inspection—covering the engine, transmission, suspension, brakes, tires, HVAC, and more. You’ll get a detailed report so you can buy with confidence or walk away informed.
Yes. We provide customizable fleet services to keep your vehicles on the road and out of the shop. From regular oil changes to DOT inspections and major repairs, we tailor our service to your business needs.
We offer diesel tuning, cold air intakes, exhaust enhancements, suspension lifts, and more. Whether you want more towing power or a better ride, we’ll build your truck the way you need it to perform.
If your cab won’t warm up in winter, your A/C blows warm in summer, or your engine is overheating, it’s time for HVAC service. We inspect compressors, radiators, belts, hoses, and thermostats to keep things cool—or warm.