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.
Engine Diagnostics
Engine Diagnostics That Bring Clarity Back to Your Drive
A deeper, smarter look into your engine’s performance so you can drive with confidence and zero guesswork.
Totally responsive and easy to work with. First time interaction was like dealing with an old friend. I’ve found my mechanic.
Totally responsive and easy to work with. First time interaction was like dealing with an old friend. I’ve found my mechanic.
Engine Diagnostic Services
Why Drivers Trust Us With Their Engine Checkups
When something feels “off” under the hood, you shouldn’t have to rely on guesses, vague explanations, or rushed inspections. At Art of Maintenance, we take a slow, thoughtful approach, because real answers require real attention. Our technicians don’t just plug in a scanner and call it a day; they listen to your concerns, study the symptoms, compare data, and dig into the full picture of your vehicle’s performance. Every test, reading, and visual check is done with purpose, giving you clear guidance about what’s happening and what needs to be done next. We blend technical expertise with human-level clarity so you walk away informed, prepared, and never pressured.
With the right Engine Diagnostics, problems are caught early, hidden issues are revealed, and repairs become smarter instead of expensive surprises. It’s all about giving your car the care it deserves.
Schedule An Engine Diagnostics Service Today!
How to Know Your Car Needs a Diagnostic Check
Sometimes your vehicle speaks in subtle clues before anything major goes wrong. A proper Engine Diagnostics appointment helps catch those early signs and prevent something small from becoming a budget-breaking headache. Whether it’s performance changes or warning lights you can’t decipher, an inspection brings everything into focus. Common signs to watch for:
Sudden dips in power
Reasons for this may be a failing fuel pump causing inconsistent fuel delivery, clogged fuel injectors restricting proper combustion, a malfunctioning mass airflow sensor sending incorrect air-intake data to the ECU, ignition coil misfires, turbocharger boost leaks, or intermittent faults detected by the engine control module that trigger temporary limp-mode or timing/air-fuel adjustments.
The dashboard light that keeps reappearing
Common reasons for these issues are persistent fault codes stored in the ECU, a failing sensor (like an oxygen sensor or mass airflow sensor) sending intermittent signals, loose or corroded electrical connections, low fluid levels that temporarily trigger alerts, or a problem that was reset but not fully repaired during diagnostics.
Strange sounds or shaking
Strange sounds or shaking from the engine can result from problems such as engine misfires due to faulty spark plugs or ignition coils, worn engine or transmission mounts causing excessive vibration, a failing serpentine belt or pulley producing unusual noises, vacuum leaks affecting engine balance, or internal issues like worn bearings or timing components.
Fuel efficiency dropping without explanation
This can be caused by issues such as a clogged air filter restricting airflow, failing oxygen sensors causing an incorrect air-fuel mixture, dirty or leaking fuel injectors, low tire pressure increasing engine load, a malfunctioning mass airflow sensor, or a thermostat stuck open preventing the engine from reaching optimal operating temperature.
ASE certified technicians
Get a dealer alternative estimate on your repair
Free shuttle service while we work on your vehicle
Trusted Automotive Care in Portland, Oregon
Keeping your car healthy shouldn’t feel complicated, and with our team, it never is. We explain what we find, outline your options, and help you make the best decision for your vehicle’s future.
Swing by Art of Maintenance in Portland, Oregon, anytime you want clarity, confidence, and engine care that’s done with skill and honesty.
Experiences.
Real
Results.
I was downtown last weekend when my car suddenly started having problems. I was at a shop on NW 23rd and the car struggled to start. I finally got it started however it still sounded very strange. I puled out of the parking lot and started driving to find a local auto shop. Suddenly my car temp went to extreme hot in seconds. I knew there was an immediate problem. We got to the auto shop to find they were closed on weekends. Fortunately my friend with my had AAA and had my car towed to Art of Maintenance. They are AAA Certified and boy am I glad that first shop was closed.
Dan’s team quickly diagnosed my problem. The radiator fan was not reconnected after the starter was changed at another mechanic shop (to remain nameless) less than a month ago. Plugged it back in and I was good to go back to the Starlight Parade Festivities.
I have found my future mechanic!
You better believe I went to the nameless mechanic shop to get reimbursed for the diagnostic cost and will be visiting Art of Maintenance this weekend to give them all of my needed repair business.
Art of Maintenance is wonderful! Took very good care of me and my van when I had electrical issues. Highly recommend!
5 STARS!!! These guys were AMAZING! I called with a flat the day after Thanksgiving, when every Tire Center was slammed, and Portland Tire Center squeezed me in short-notice and got me back on the road! My travel plans were maintained due to such great service! Thank You Kevin!
A big thanks to Kevin and the guys who worked on my son’s Subaru. I’m thrilled that when I send him back to college, he won’t break down on the freeway. Head gaskets are nothing to fool around with, and I appreciate the thoroughness in checking out everything else.
Got me in quick, same day service. Car was fixed sooner than expected. Great customer service!
I had issues with a coolant leak. I was able to drop my car off late at night (using the key drop), they promptly got a hold of me in the morning with an assessment and quote, and everything was finished that day. Very quick, professional, and friendly staff.
Alternator started going bad. Went in there at 3:00 pm by 4:00 pm the problem was fixed. Very nice people. One took my wife home while I waited for the repair.
The shop was amazing got me in took care what I needed fast and Kevin was great
Great experience with AOM. Very friendly and an extremely easy transaction. I brought in my CRV with a broken starter and was back on the road the next day.
Great work. Three shops befrore this one. They found my problem in 30 min.
Friendly staff, do the job right.
Out of Towners with a smashed back window. They couldn’t fix it but we’re very obliging good . Cleaned us up and gave great advice.
*Rates from 0%-36% APR. Payment options through Affirm are subject to an eligibility check, may not be available in all states, and are provided by these lending partners: affirm.com/lenders. Options depend on your purchase amount, and a down payment may be required. CA residents: Loans by Affirm Loan Services, LLC are made or arranged pursuant to a California Finance Lenders Law license.
