2 Portland Metro Area Locations


Monday-Friday: 8:00AM - 5:00PM

Monday-Friday: 8:00AM - 5:00PM
Schedule Your Appointment (503) 235-1485

Alternator Repair

Alternator Repair

The alternator is a part of your vehicle’s automotive charging system. The alternator is driven by a small belt that attaches to your engine’s crankshaft. The alternator harnesses the energy from your engine to create an alternating current, which provides the voltage your car battery needs to start your car. In other words, your alternator is responsible for transforming the energy produced by your engine into electricity that in turn powers all of the electrical components in your vehicle, such as the headlights or the air conditioner.

Alternators have a lot of small, moving parts and therefore will break down over time. If you see a light come on in your dash that looks like a battery or says “ALT” next to it, then it probably means your alternator is struggling. Another indicator that your alternator may be malfunctioning is if your headlights or other electrical components dim or fade while you are driving. This usually means that your alternator is no longer functioning properly and is no longer able to generate enough electricity to power your vehicle’s headlights and other electrical components. If you hear a loud “growling” sound coming from your engine, it could be a sign that the bearings in your alternator need to be replaced. These bearings break down over time and eventually will cause your alternator to slow down or seize up.

Auto Repair Portland

K&M Auto Service is a locally-owned and family operated Back To Top. Our team of ASE certified master mechanics can tackle any car problem, big or small. We understand that you want your vehicle drivable as soon as possible, so we work hard to make quality auto repairs in a timely manner. We know just about all there is to know about cars. We offer transmission flushes, radiator flushes, brake repair, oil changes and the all-around most dependable Back To Top. If your vehicle is having issues, let us take a look at it for you. We will have you back on the road in no time.

A lot of different things can go wrong with your alternator, and we have experience to deal with all of them. If you suspect that your car’s alternator is on its last leg, come on down to Back To Top and we will fix the problem or replace the alternator if necessary. Contact us any time to make an appointment!

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Oil Change Special

Conventional: $34.99
Synthetic: $64.99


22 Point Safety Inspection
Tire Rotation (as needed)
Brake Inspection
Check all Fluids
Battery & Charging System Test
Plus tax. Most common oil filters. Up to 5 quarts of oil.