Rough running, a check engine light, odd noises or a loss of power. We track down what's actually causing it before we recommend a repair.
Engine repair covers finding and fixing problems that affect how your engine runs, from a misfire or a vacuum leak to a failed gasket or worn timing components. Some jobs are small, like replacing a bad sensor or an ignition coil. Others mean taking part of the engine apart. Either way, it starts with knowing exactly what's wrong.
Engines usually give some warning before a small problem becomes a big one. A check engine light, a rough or shaky idle, hesitation when you step on the gas, or less power than usual on a climb. Other signs you can hear or see: ticking or knocking, oil spots under the vehicle, bluish smoke from burning oil, or white smoke with a sweet smell, which can mean coolant is getting into the engine. Worse fuel mileage than normal can be an early clue too.
Some warnings mean act now. A flashing check engine light usually means a misfire bad enough to damage the catalytic converter, so keep driving to a minimum until it's checked. The oil pressure light or a temperature gauge heading toward hot are more serious: pull over and shut the engine off as soon as it's safe. Running an engine low on oil or overheated can turn a manageable repair into a major one.
A check engine code is a starting point, not an answer. It tells us which system or circuit flagged a problem, not which part failed. A misfire code, for example, could trace back to a spark plug, an ignition coil, a fuel injector, a vacuum leak or low compression. We test to narrow it down before replacing anything, so you aren't paying for parts that didn't fix it.
Around Missoula, mountain grades, towing, long highway stretches and harsh winters all keep an engine working hard. Heavy loads, long climbs and cold starts add wear over time, which is a big reason regular oil changes and maintenance matter so much for engine life.
Once we know what's going on, we explain it in plain terms, lay out your options and give you the cost before any work starts. If the repair can wait a bit, we'll say so. If it can't, we'll tell you why.
A sensor, an emissions fault or a mechanical problem can all trigger it. The code points us in a direction, and testing confirms the cause.
Shaking at a stop, stumbling under load or a flashing check engine light often means one or more cylinders aren't firing properly.
If the engine feels flat on hills or when merging, the cause could be in the fuel, air, ignition or exhaust side of the engine.
New engine noises can come from something as simple as low oil or an exhaust leak, or from wear inside the engine. Check the oil level and have it looked at soon.
Oil spots under the vehicle, a burning smell or bluish smoke usually mean a leaking gasket or seal, or oil getting burned inside the engine.
This one means stop. Pull over when it's safe, shut the engine off and check the oil. Driving with low oil pressure can cause serious engine damage.
Fast service and a good price! Would recommend!
Taylor H. · Google
Excellent Service! I took my car to them for a full transmission fluid flush and refill, brake fluid full flush and replace, and an oil change. These are Good People...Read full reviewShow less
Excellent Service! I took my car to them for a full transmission fluid flush and refill, brake fluid full flush and replace, and an oil change. These are Good People. They do Great Work for a Fraction of the Price the Dealership wanted to charge me. They are now my go to shop.
Mike W. · Google
I’ve got both my suspension and my clutch replaced in my WRX by them, and they were super quick! Quoted me up to a week both times, but I got my car back within 2 days, both times. Really great work!!
Tristan P. · Google
The PTU in my car had a hole in it and they got my car in super quick and had the work done within no time. Theu did a great job and made a very stressful situation easier then I could have hoped for.
jennifer C. · Google
John is a top-notch mechanic and an honest person. Instead of charging me for a lot of parts that I didn’t need, he told me he couldn’t diagnose the exact spot in my suspension that was making noise...Read full reviewShow less
John is a top-notch mechanic and an honest person. Instead of charging me for a lot of parts that I didn’t need, he told me he couldn’t diagnose the exact spot in my suspension that was making noise. We agreed that I would drive my car a little longer and see if it gets worse. He used suspension ears and spent a lot of time trying to diagnose my car. Many shops would’ve just told me I needed struts and would’ve charged the normal labor and mark up on parts. He might not have solved my problem but kudos to John and his team for not just throwing parts at it. I would HIGHLY recommend them if you’re looking for a trustworthy shop in the Missoula area.
Tony D. · Google
Had a great experience at UCDI. Great communication and quality service!
Carson C. · Google
Mon to Fri 9 AM to 5 PM
Sat to Sun closed
2603 Industry Street, STE D1Missoula, MT 59808
Mon to Fri 9 AM to 5 PM
Sat to Sun closed
Something else on your mind? Call the shop.
Pick the service and a day that works. We'll call to confirm a time. In a hurry? Call the shop.
