Warranty

Best in town 5 year/50k mile warranty

Peace of Mind

Roadside 

assistance

Financing

0% interest financing options available

Experts

ASE certified technicians

Save $

Get a dealer alternative estimate on your repair

Shuttle

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 Keep Your Car Performing Its Best

A detailed inspection of your engine systems to catch problems early and ensure your vehicle runs smoothly in every situation.

Master Tech did the brakes on my BMW, they also checked over the full car, and advised with photos what else is recommended. They did a great job and also were able to show me the older brakes. I highly recommend them for any maintenance or repairs!

Jennifer Coffelt

Master Tech did the brakes on my BMW, they also checked over the full car, and advised with photos what else is recommended. They did a great job and also were able to show me the older brakes. I highly recommend them for any maintenance or repairs!

Jennifer Coffelt
Engine Diagnostic Services

Why Gresham Drivers Rely on Us for Engine Checks

When it comes to engine performance, ignoring warning signs is never a good idea. At Master Tech Automotive, we go beyond simple scans; we dig into the root of every symptom. Our team examines fuel systems, ignition components, sensors, and more to provide a complete picture of your engine’s health. We combine advanced diagnostics with hands-on expertise to ensure every reading makes sense. That way, you’re not just getting a report; you’re getting practical advice on how to keep your car reliable and safe. We make complex problems easy to understand, guiding you through what needs immediate attention, what can wait, and how to maintain optimal performance. Our approach saves you time, stress, and potentially costly repairs down the road.

Schedule An Engine Diagnostics Service Today!

How to Know Your Engine Needs a Diagnostic

Engines rarely fail overnight, they usually give subtle signals first. Recognizing these signs early can prevent a breakdown and extend your vehicle’s life. With a proper Engine Diagnostics check, you catch problems while they’re still manageable, instead of dealing with surprises on the road.

Signs to schedule a check:

Some reasons for this are 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 faults detected by the engine control module that trigger temporary limp-mode.

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.

Most of these issues are caused by worn valve lifters or timing components creating ticking sounds, loose or damaged heat shields rattling, detonation or “engine knocking” from improper air-fuel mixture or low-octane fuel, failing bearings within the engine, or accessory components like the alternator or water pump beginning to wear out.

This can be caused by issues such as worn spark plugs or ignition coils leading to misfires, a dirty throttle body restricting airflow, vacuum leaks disrupting the air-fuel mixture, failing fuel injectors delivering inconsistent fuel, or a malfunctioning sensor (like the mass airflow or coolant temperature sensor) sending incorrect data to the engine control unit. 

Experts

ASE certified technicians

Save $

Get a dealer alternative estimate on your repair

Shuttle

Free shuttle service while we work on your vehicle

Service Areas
Comprehensive Engine Services in Gresham, Oregon

Our mission is simple: keep your car running reliably while making the process easy to understand. We take the guesswork out of maintenance, providing clear results, honest recommendations, and expert service tailored to your vehicle. 

Visit us in Gresham, Oregon, today for a complete Engine Diagnostics assessment and experience the confidence of knowing your engine is in expert hands.

Testimonials
Customer Reviews
Real
Experiences.
Real
Results.

Excellent customer service, very professional and the technician Darren Yuckert was outstanding, solved all my electrical issues within the estimated cost, I would highly recommend them to anyone.

Steven Ames

Thanks as always for the great work, it was an expensive fix but you guys did it in a timely manner and I very much appreciate it. Great as always! Thank you!

Rena Shereck

This was my second time using them. Service has always been fast and reliable. I appreciate the follow up to make sure everything works correctly.

Bob Schermerhorn

I was able to schedule regular maintenance on short notice. The diagnostic showed a couple of things that needed immediate attention , which they were able to complete on the same visit. My 2001 Honda is running better now than it has in years!

Ed G

Master Tech did the brakes on my BMW, they also checked over the full car, and advised with photos what else is recommended. They did a great job and also were able to show me the older brakes. I highly recommend them for any maintenance or repairs!

Jennifer Coffelt

Took in my car at Masters Tech Automotive shop. Had my car running in no time. I would recommend them to whoever needs their vehicle worked on !!

Roberto Torres

The technicians at master tech were very helpful with finding the problem with my truck and giving me multiple options in order to fix it. The repairs they did were fantastic, they look and preform perfectly.

Bubba Johnson

Had a synthetic oil change on my German car and they did a fine job and were friendly. They also did a very detailed inspection with photos at no additional charge. Very professional service.

Leonard Ball

Master Tech in Gresham did a nice job on the mechanical repairs and maintenance items. If there is ever an issue or concern, they will make it right. The service is always courteous and professional.

Joseph Pittman

I was in need of repair and this business was quick, customer service polite, and they got the repair done sooner than they anticipated. Also, they followed up personally which was really nice.

Daniel Teune

I was really impressed with the work done at Master Tech Automotive. Very professional and was done right in a timely manner. Master Tech will be my go to from here on.

Tim

Great service, quick, great price and helped us through the issues we were having with our car. Called to give us updates too.

Capri Parker

400+ 5 Star Reviews

Warranty

Best in town 5 year/50k mile warranty

Peace of Mind

Roadside Assistance

Financing

0% interest financing options available

Experts

ASE certified technicians

Save $

Get a dealer alternative estimate on your repair

Shuttle

Free shuttle service while we work on your vehicle