Best in town 5 year/50k mile warranty
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400+ 5 Star Reviews
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Free Second Opinion Inspection. 100% Price Match Guarantee.
Engine Repair
Restore Engine Performance With Professional Engine Repair
Your engine is designed to deliver dependable performance every time you drive. When something isn’t working as it should, prompt repair can help restore power, improve efficiency, and protect your vehicle from more extensive damage.
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!
Engine Repair Services
Why Choose Multnomah Automotive for Engine Repair?
Engine problems don’t always begin with dramatic symptoms. A slight vibration, reduced fuel economy, or an occasional warning light can all indicate that something beneath the hood needs attention. Waiting too long to address these concerns can place additional stress on critical engine components, turning a manageable repair into a much larger one. Having your vehicle inspected by experienced technicians at Multnomah Automotive is the best way to protect both its performance and your investment.
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Our technicians carefully evaluate your vehicle to identify the source of the problem before recommending repairs, ensuring you receive the service your engine actually needs. From ignition and fuel delivery concerns to overheating issues and internal engine components, every repair is completed with precision and attention to detail.
Schedule An Engine Repair Service Today!
Signs Your Engine May Need Professional Attention
Catching these warning signs early can help reduce repair costs and prevent unnecessary engine damage.
If you notice any of the following, it may be time to schedule an inspection:
Rough idling or excessive engine vibration
Rough idling or excessive engine vibration is typically caused by an engine performance or mechanical issue that requires diagnosis and repair. Common causes include worn spark plugs, failing ignition coils, clogged or malfunctioning fuel injectors, vacuum leaks, a dirty throttle body, restricted air intake components, or a malfunctioning mass airflow (MAF) sensor, all of which can contribute to engine misfires or an unstable idle. Additional causes may include low engine compression resulting from worn piston rings, damaged valves, head gasket failure, or incorrect valve timing due to a worn timing chain or timing belt. Worn or broken engine mounts can also transmit excessive engine movement and vibration into the vehicle, making the condition more noticeable.
Engine overheating while driving
This is caused by a malfunction within the engine cooling system or an internal engine condition that requires prompt diagnosis and repair. Common causes include low coolant levels, coolant leaks, a failing water pump, a stuck thermostat, a clogged or damaged radiator, restricted coolant passages, or inoperative electric cooling fans. A slipping or broken drive belt, faulty radiator cap, or collapsed radiator hose can also reduce the cooling system’s ability to regulate engine temperature. In more severe cases, overheating may result from a blown head gasket, cracked cylinder head, or damaged engine block, allowing coolant loss or combustion gases to enter the cooling system. Continued operation while the engine is overheating can lead to significant engine damage.
Check engine light remains illuminated
A check engine light that remains illuminated often indicates that the engine has detected a fault requiring diagnosis and repair. Common engine-related causes include worn or fouled spark plugs, failing ignition coils, fuel injector malfunctions, vacuum leaks, low engine compression, timing issues, or problems with engine sensors such as the mass airflow (MAF) sensor, crankshaft position sensor, or camshaft position sensor. Mechanical concerns, including damaged valves, worn piston rings, or a failing timing chain or belt, can also trigger the warning light. In addition, issues affecting the air-fuel mixture or engine emissions, such as intake manifold leaks or exhaust system faults, may cause the light to remain on.
Vehicle is harder to start than usual
This is caused by an engine performance, fuel delivery, ignition, or mechanical issue that requires diagnosis and repair. Common causes include worn spark plugs, failing ignition coils, a weak or malfunctioning fuel pump, clogged fuel injectors, a restricted fuel filter, or inadequate fuel pressure. A faulty crankshaft position sensor, camshaft position sensor, engine coolant temperature sensor, or mass airflow (MAF) sensor can also prevent the engine from starting properly by disrupting engine management functions. Additionally, low engine compression caused by worn piston rings, damaged valves, a failed head gasket, or incorrect valve timing due to a worn or damaged timing chain or timing belt may result in extended cranking or a no-start condition.
Declining fuel efficiency without explanation
This is an indication of an underlying engine performance or fuel management issue that requires diagnosis and repair. Common causes include worn spark plugs, failing ignition coils, clogged or leaking fuel injectors, a malfunctioning oxygen sensor, mass airflow (MAF) sensor, or engine coolant temperature sensor, which can cause the engine to operate with an inefficient air-fuel mixture. Additional factors such as vacuum leaks, restricted air intake components, carbon buildup, improper ignition timing, low engine compression, or excessive internal engine wear can also reduce fuel economy. A partially restricted exhaust system, fuel pressure issues, or faults within the engine control system may further contribute to increased fuel consumption.
Knocking, ticking, or grinding noises
These are signs of internal wear, lubrication problems, or failing mechanical components that require diagnosis and repair. Common causes include low engine oil levels, contaminated oil, worn connecting rod bearings, main bearings, piston components, or excessive internal engine clearances. Ticking noises may result from worn valve train components such as hydraulic lifters, rocker arms, camshaft lobes, or timing chain tensioners. Grinding or abnormal mechanical noises may be caused by failing timing chain components, damaged gears, worn engine accessories, or deteriorating bearings within rotating assemblies. Improper ignition timing, engine detonation, or internal component damage, can also contribute to unusual engine sounds.
Loss of power during acceleration
This is caused by an engine performance, fuel delivery, air intake, or mechanical issue that requires diagnosis and repair. Common causes include worn spark plugs, failing ignition coils, clogged fuel injectors, a weak fuel pump, restricted fuel filters, or inadequate fuel pressure, all of which can reduce engine output under load. Air intake restrictions, vacuum leaks, a malfunctioning mass airflow (MAF) sensor, throttle body issues, or engine misfires can also limit acceleration. Additionally, low engine compression caused by worn piston rings, damaged valves, a blown head gasket, or incorrect valve timing due to a worn or damaged timing chain or timing belt may significantly reduce engine performance.
Increased exhaust smoke
This is often an indication of an internal engine or fuel system problem that requires diagnosis and repair. Blue smoke typically indicates that engine oil is entering the combustion chamber due to worn piston rings, damaged valve stem seals, or excessive cylinder wear. White smoke may suggest coolant is being burned as a result of a blown head gasket, cracked cylinder head, or damaged engine block, while black smoke commonly indicates an overly rich air-fuel mixture caused by faulty fuel injectors, a malfunctioning fuel pressure regulator, restricted air intake, or a defective mass airflow (MAF) sensor. Additional causes may include turbocharger seal failure on turbocharged engines or malfunctioning engine management sensors that affect fuel delivery.
ASE certified technicians
Get a dealer alternative estimate on your repair
Free shuttle service while we work on your vehicle
Quality Engine Repair in Portland, Oregon
Drivers throughout Portland, Oregon, trust Multnomah Automotive for dependable automotive repairs that prioritize long-term reliability. Whether your vehicle requires diagnostic testing, component replacement, or more involved engine repair, our experienced team is committed to delivering dependable workmanship and transparent service.
Schedule your engine repair with Multnomah Automotive today and let our team help keep your vehicle performing at its best.
Experiences.
Real
Results.
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.
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!
I had my brakes replaced here based on a recommendation from a coworker. They were helpful, honest, and got it done in one day!
Jason helped fix multiple issues in my Toyota for $2000 less than what the dealer wanted. Jason and his team worked quickly and communicated clearly about issues that needed to be addressed. As long as Jason is there we’ll be bringing in our cars for service.
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 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!
They are the best!!! They could’ve charged an arm and a leg, but didn’t. They are integral, and good people. I’m a teacher, and we had a hard week at home. Mike’s genuineness, and integrity, were very timely, and appreciated. We will go to the shop again and again.
These guys are FAST! I needed an oil change and a catalytic converter shield installed on my Prius. They were pretty busy when I came to the shop by they still turned it around in a couple hours and gave great service. Shout out to Jason and his team, keep it up!
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.
My car’s tires blew out right near their shop, and they were super helpful in getting new tires in and replacing them within one day. Really helpful, and professional.
*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.
