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Monday 7:30am - 5pm Tuesday 7:30am - 5pm Wednesday 7:30am - 5pm Thursday 7:30am - 5pm Friday 7:30am - 5pm

J & S Automotive

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United States
Beaverton, OR
J & S Automotive

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Finding a mechanic is easy, but finding one you trust is an entirely different story. We pride ourselves on our ability to provide the very best customer care.

At J&S Automotive, it’s our goal to create a lifetime relationship with you. Hello, my name is Jon Troiano and I am the owner of J&S Automotive. I have been repairing and working on cars, trucks, boats and anything mechanical since I was a kid. I take pride in repairing anything because it gives me a sense of accomplishment. My team and I take on each repair as a puzzle that we have to solve with the utmost care. We love to have a challenge and are committed to getting the job done right the first time. Services offered:
* Auto Repair
* Auto Maintenance
* Automobile Engine Diagnostics
* Emission System Repairs
* Tune Ups
* Oil and L**e
* Engine Repair
* Timing belts & all other maintenance work
* Electrical System Repair
* Lexus Specialist

10/29/2026

Recently, a 2015 Ford Fusion SE 1.5L Eco-boost came into our shop for an oil change.

We noted a leak going on and put a UV dye into the system with a reinspection date after 100 miles driven.

When they returned we saw the leak coming from the oil separator. One of our experienced Ford technicians condemned the turbo inner seal leaking causing the oil separator seals to fail as well.

Once we got into it, we also found that the water pump was leaking! To repair that you have to take the timing cover off and at that point you might as well do the timing belt kit all together.

We found so much oil in the inner cooler… about a quart or more.

Repair costs were quite high, but the car is running smooth now and has lots of miles left on it for its owner.

What has your mechanic found in addition when doing a big job? Or if you are a mechanic what’s a big job that got bigger as you got into it?

Seems like there is always something else to find!

J&S Automotive
Aloha, Oregon

10/23/2026

🔧 IT ALL STARTS WITH AN OIL CHANGE...

This Subaru Impreza came into J&S Automotive for a routine oil change just before the customer was heading out on a long road trip.

During our inspection, we discovered OIL IN THE COOLANT!

Further diagnosis led us to deteriorated O-ring seals in the upper oil pan assembly.

These small seals have a BIG job! They keep engine oil and coolant separated as they pass through different passages in the engine. When they fail, oil can enter the cooling system and cause serious problems.

This is a BIG repair, requiring us to remove the entire engine assembly!

During the engine teardown, we also discovered that the rocker arm stanchion seals were leaking. Since the engine was already apart, we addressed those leaks as well to help prevent future problems and another costly teardown.

Fortunately, we caught these issues before the customer headed out on their trip.

At J&S Automotive, we'll always let you know when something could affect your safety, vehicle reliability, or travel plans.

Some repairs can wait. Others shouldn't. We'd rather find the problem in our shop than have you stranded hundreds of miles from home.

🚗 HERE'S OUR QUESTION:

Do you schedule a pre-trip inspection before a long road trip?

👇 Let us know in the comments!

J&S Automotive | Aloha, Beaverton & Hillsboro

10/15/2026

🔧 Clutch Replacement on a 2006–2007 Honda Accord
This Accord came into J&S Automotive needing a complete clutch replacement—and these photos show just how involved this job really is!
To access the clutch and flywheel, the transmission and front subframe had to be removed. Once everything was apart, we found considerable wear and heat damage on the old flywheel. We replaced the worn components with a new clutch and flywheel to restore smooth, dependable engagement.
Common signs of a worn clutch include:
- Engine revving without the vehicle accelerating normally
- Clutch pedal engaging unusually high
- Shuddering or vibration during takeoff
- Difficulty shifting
- Grinding or unusual noises
Manual-transmission drivers: How many miles have you gotten from a clutch—or are you still driving on the original one?
J&S Automotive
Serving Aloha, Beaverton and Hillsboro
Asian and Domestic Vehicle Repair

09/30/2026

Sometimes Routine Maintenance Finds a Bigger Problem

This Nissan Rogue originally came to J&S Automotive for scheduled spark-plug replacement. Once we removed the ignition coils, we found engine oil leaking into the spark-plug tubes.

Oil in this area can damage the ignition-coil boots, cause misfires and eventually lead to a check-engine light or rough-running condition.

On this engine, the spark-plug tube seals are built into the valve cover and are not serviced separately. Correcting the leak required replacement of the complete valve-cover assembly.

Finding the problem during scheduled maintenance allowed us to explain the additional repair before installing the new spark plugs and putting everything back together.

This is why maintenance is about more than replacing the item listed on the appointment. It also gives us an opportunity to inspect surrounding components, document developing problems and help customers address them before they cause a breakdown or more expensive damage.

Has routine maintenance ever uncovered an unexpected problem with your vehicle?

J&S Automotive
Serving Aloha, Beaverton and Hillsboro
Asian and Domestic Auto Repair

09/25/2026

💧 WHERE DO RADIATORS COMMONLY LEAK?

This video shows a very common radiator failure — coolant leaking from the bottom corner where the plastic tank meets the aluminum core.

Most modern radiators have an aluminum core with plastic tanks that are crimped and sealed together. After years of heating up and cooling down, that seal can deteriorate and eventually start leaking.

Once you see coolant coming from this area, it’s time for a new radiator.

The important part is catching it BEFORE the coolant gets low enough for the engine to overheat. An overheating engine can turn a relatively straightforward repair into a very expensive one.

🔧 J&S AUTOMOTIVE
Aloha, Oregon
Asian & Domestic Vehicles

09/09/2026

Does It Look Worn—or Is It Actually Failing?

A photograph can show that a part is cracked, torn or weathered—but appearance alone does not always prove that the part has failed or needs immediate replacement.

A torn plastic dust cover on a strut does not automatically mean the strut is bad. We also check whether the strut is leaking, bouncing, making noise or affecting tire wear and handling. If it is still operating properly, the torn cover may simply be something to document and monitor.

The same applies to control-arm bushings. Light surface cracking and weathering can occur with age. What matters is whether the rubber is separating, allowing excessive movement or causing noise, alignment changes, poor handling or uneven tire wear.

Brake pads tell another story. If one pad is worn significantly more than the other, simply installing new pads may not correct the underlying problem. Uneven wear can indicate sticking slides or a seized caliper piston. That may mean additional cleaning, repairs or caliper replacement are needed before the brake job can be completed correctly.

At J&S Automotive, we want our customers to understand the difference between:

A visual concern that should be monitored
A worn part that should be planned for
A confirmed failure that needs attention soon
A safety concern that should be addressed immediately

We also explain what could be discovered after disassembly, whether additional parts may be necessary and how that could affect the cost or completion time.

A picture is helpful—but the explanation, testing and proper inspection behind that picture are what allow you to make an informed decision.

J&S Automotive
Serving Aloha, Beaverton and Hillsboro

08/25/2026

What Would You Rate These Cabin Air Filters?

At J&S Automotive, we believe good service starts with clear communication. We don’t simply tell you that something is “dirty,” “leaking” or “needs attention.” Whenever possible, we inspect it, photograph it and rate its condition so you understand how serious it actually is.

We use a simple 1–10 rating scale for cabin air filters and other concerns we notice during an inspection, including fluid leaks, worn components and maintenance items:

1–2: Okay condition
3–5: Starting to deteriorate—monitor it or plan for service
6–8: Poor condition—service or replacement recommended
9–10: Severe condition—address as soon as possible

If an item isn’t placed on the rating scale, it means it is in good condition and doesn’t require attention.

For example, a light oil seep may receive a lower rating and simply need to be monitored. An active leak that is losing fluid or could cause additional damage would receive a higher rating and a stronger recommendation.

The cabin air filters shown here are solid 9s and 10s. They are packed with dirt, leaves and other debris. Some also show signs of possible rodent activity.

A restricted cabin air filter can reduce airflow from the vents, contribute to unpleasant odors and allow more dust and debris into the vehicle’s heating and air-conditioning system.

Our goal is to give you clear information—not pressure. We document what we find, explain its condition and help you understand what needs immediate attention, what can be planned for later and what is currently okay.

When was the last time your cabin air filter was checked?

J&S Automotive
Serving Aloha, Beaverton and Hillsboro
Asian and Domestic Auto Repair

08/14/2026

This 2011 Toyota Tundra came into J&S Automotive with an engine-oil leak from the cam towers—a common and labor-intensive repair on Toyota’s V8 engines.

Correcting this leak requires removing several major components from the top of the engine, carefully lifting the cam towers, thoroughly cleaning the sealing surfaces, and applying new sealant in the proper locations. Everything is then carefully reassembled and inspected to ensure the repair is sealed correctly.

This video gives you a look at the amount of disassembly and attention to detail involved in performing a proper cam-tower reseal. It’s a big job, but doing it correctly helps keep oil off the engine, exhaust components, and your garage floor.

If you notice a burning-oil smell, oil around the sides of your engine, or spots underneath your Toyota or Lexus, give us a call to have it inspected.

J&S Automotive
Serving Aloha, Beaverton, Hillsboro, and the surrounding area.

07/15/2026

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07/07/2026

Not every transmission service is as simple as removing a drain plug.

Many modern automatic transmissions require the transmission pan to be removed so the filter can be replaced and the inside of the transmission can be inspected.

Skipping the filter replacement or using the wrong fluid can shorten the life of an otherwise healthy transmission.

Whether your vehicle spends its time commuting, towing, or exploring the trails, keeping up with transmission maintenance is one of the best ways to protect your investment.

From Jeeps and 4x4s to trucks, SUVs, and daily drivers, we service a wide variety of domestic and Asian vehicles right here at J & S Automotive. If your adventure takes you off the pavement, make sure your vehicle is ready to get you there—and back.

Need to know if your vehicle is due for transmission service? Give us a call.

📍 J & S Automotive – Aloha, Oregon
📞 503-356-9210

Address

18960 SW Shaw Street
Beaverton, OR
97078

Opening Hours

Monday	7:30am - 5pm
Tuesday	7:30am - 5pm
Wednesday	7:30am - 5pm
Thursday	7:30am - 5pm
Friday	7:30am - 5pm

Telephone

+15033569210

Website

https://jns-auto.com/

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