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.

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

A little pricey but worth it. Good communication for the most part. Excellent vehicle inspections with pictures and accurate descriptions. Fast turnaround times unless you are stuck waiting on parts.

James Antonacci

Once again you have performed flawlessly and within the time frame which was estimated. With the radiator and thermostat replaced we now have heat. Thanks to all who participated, and will continue to use MasterTech for repairs, etc.

Jim

Had them do a routine service on my transmission and the work was done in a timely matter and Daren and the other employees were polite and helpful.

Derek Jackson

Darren, store manager, and his crew do a terrific job! I feel very confident taking my vehicle to Master Tech even though we now as live in Tigard. Its well worth the trip.

Dianne Kaepplinger

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

They are very accurate with their estimates and no surprise repairs.
I really appreciate the thorough inspections, with electronic vehicle history files with photos and recommendations. This added value shows their commitment to exceptional customer service.

Matt Allen

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

MasterTech is so different than other mechanics! They give you updates with photos via text about what should be repaired or needing any kind of attention in the future. Also, their warranty is longer than most plus the FREE ROADSIDE ASSISTANCE is just as good as AAA without the fee. I’d recommend MasterTech to anyone. Getting an appointment is easy to do

Lacey Blazejewski

The work was done quickly, cleanly, on time and my truck was all the better for the service they provided. All I could ask for and a little bit more. Highly recommended.

Tom Addis

Fast service and quick to find and repair issue. Staff polite and knowledgeable. Explained options and got my vehicle back to me quickly.

Carolyn Madison

I had a great experience getting my Honda Fit 30,000 mile service and new tires. Communication was quick and clear, staff were friendly, and I felt the cost was reasonable. Thanks for making this normally stressful process very easy!

Michele Bennett

*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.

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