Best in town 5 year/50k mile warranty
Roadside
assistance
0% interest financing options available
ASE certified technicians
Get a dealer alternative estimate on your repair
Free shuttle service while we work on your vehicle
400+ 5 Star Reviews
400+
Reviews
Free Second Opinion Inspection.
100% Price Match Guarantee.
Free Second Opinion Inspection. 100% Price Match Guarantee.
Exhaust Service
Exhaust Service That Keeps Your Drive Quiet, Clean, and Efficient
Your exhaust system does more than manage noise. It protects engine performance, fuel efficiency, and the air moving through your vehicle every single day. When it’s working right, you don’t think about it. When it’s not, your car lets you know fast.
We had them replace the engine on our 2002 Toyota Echo. It now runs like a charm, and they gave us a three year, 30,000 mile warranty on the engine and labor. We highly recommend Multnomah Automotive!
We had them replace the engine on our 2002 Toyota Echo. It now runs like a charm, and they gave us a three year, 30,000 mile warranty on the engine and labor. We highly recommend Multnomah Automotive!
Exhaust Services
Why Drivers Trust Our Approach to Exhaust Care
Exhaust issues are often ignored because they start quietly. A small leak, a loose connection, or a worn component can slowly affect engine balance, fuel use, and overall performance. The team at Multnomah Automotive takes a thorough, system-wide approach to Exhaust Service, not quick fixes. Every inspection focuses on airflow, mounting points, sensors, and overall system integrity so problems are solved at the source, not masked.
Our technicians explain what’s happening in clear terms and focus on smart, lasting solutions that protect your engine and keep your vehicle running efficiently. It’s careful work, done with intention, because the exhaust system plays a bigger role than most drivers realize.
Schedule An Exhaust Service Today!
Clues Your Vehicle Is Asking for Attention
Exhaust problems rarely show up all at once. Catching these signs early can prevent more serious damage and restore smooth operation before it affects other systems. If you notice even some of these, it’s time for an inspection. They tend to build slowly, which is why paying attention to early signs matters. If something feels off, it usually is.
Louder-than-usual engine noise
Some reasons for this include leaking exhaust manifold, damaged muffler, failing catalytic converter, loose exhaust hangers, or cracks in the exhaust piping—alter the normal flow and dampening of exhaust gases, causing the engine’s sound to become louder, lower-pitched, or more aggressive.
Reduced fuel efficiency
Fuel mileage can drop when there’s a clogged or failing catalytic converter, exhaust leaks before the oxygen sensors, damaged exhaust piping, or malfunctioning oxygen sensors—disrupt proper exhaust flow and air-fuel mixture feedback, causing the engine to run less efficiently and consume more fuel.
Rattling sounds under the vehicle
Causes for this are loose or broken exhaust hangers, deteriorated rubber mounts, damaged heat shields, internal muffler or catalytic converter component failure, or sections of exhaust piping contacting the chassis—allow the exhaust system to move excessively and create noise or vibration while driving.
A noticeable drop in engine performance
Common cuases are a partially clogged catalytic converter, restricted muffler, crushed or obstructed exhaust piping, or significant exhaust leaks—disrupt normal exhaust flow and increase backpressure, making it harder for the engine to expel gases and respond quickly to throttle input.
ASE certified technicians
Get a dealer alternative estimate on your repair
Free shuttle service while we work on your vehicle
Complete Automotive Services in Portland, Oregon
Multnomah Automotive provides professional Exhaust Service alongside a full range of automotive care, all under one roof. Our Portland, Oregon location is equipped to keep your vehicle reliable, responsive, and ready for daily driving. Visit our shop today, and let our team of experts give your vehicle the care it deserves.
Experiences.
Real
Results.
Had my starter go out. They were able to diagnose and replace within two days despite being extremely busy. They also provided a full inspection without being pushy or trying to upsale. Good honest work. Thanks!
I had a really great experience here. Service was friendly and explained everything clearly and thoroughly. They also always maintained good communication throughout and the service was timely. I definitely see myself as a repeat customer.
Great shop. Knowledgeable, trustworthy, kind staff. Fixed my car and gave helpful feedback on the things to keep an eye on. I will use them again and would recommend this shop to others.
Wonderful and fast costumer service. Very accommodating and friendly. They take the time to explain the issues and are flexible with your schedule and time. Extremely reliable and trustworthy service and workers!
Jason was so kind and gave me great advice even though my car was at another shop. He’s honest and sincere, and knows how to get his customers back on the road.
These guys are awesome! I had a problem with a battery install, brought the car back and they replaced the battery free of charge. Great communication, helpful advice too!
I love this place. The owner is straight up. This is an awesome shop. My repair was concise accurate. I trust them implicitly and it’s a drive for me AAA rated… Check them out Jason has your back.
Dude these guys are great. They’ve never overcharged in my experience, and do a thorough job. Shout out to Jason for keeping me updated with repairs.
Had my oil changed and transmission flushed. They were very helpful and up front, easy to work with, and completed services in a timely fashion. I will definitely be bringing my car back to Jason and team.
The team here is fantastic. We had car troubles and they were fast and very honest about our options. They took detailed notes and photos about nest steps on repairs for our vehicle. We had such a great experience that they are now our permanent mechanics.
During the last year I have taken my Dodge to Multnomah Automotive for both a major engine repair and a standard oil change. I felt respected and cared for both times and highly recommend this friendly neighborhood shop.
Staff was incredibly friendly and went above and beyond to make sure I was taken care of, work was quality and efficient. Will be returning my business here going forward!
