Engine Repair Service in Billings, MT

Mechanic in blue uniform tightening a car engine bolt with a wrench

When your check engine light comes on and your vehicle starts running rough, you need a shop you can trust to get it right. Auto Tech Specialists, serving Billings, MT, has been the go-to engine repair service for drivers across Yellowstone County since 2004. Whether you commute along King Avenue West or haul loads on I-90 toward Laurel, engine trouble is never something to ignore. Call (406) 839-9100 today to schedule your engine repair service appointment, or request service online.

Engine Repair Services We Provide

Auto Tech Specialists handles a wide range of engine problems for cars, trucks, and imports of all makes and models. Billings summers push past 90°F and winters drop below freezing, with rapid Chinook-driven temperature swings. That thermal stress accelerates wear on gaskets, coolant systems, belts, and seals. Our ASE-certified technicians understand the specific demands that Yellowstone County driving puts on your vehicle's engine.


Common engine repairs we perform include:


▸ Head gasket replacement, which may be needed when overheating or coolant loss occurs.

▸ Timing belt and timing chain service, critical for keeping your engine running in sync.

▸ Oil leak diagnosis and repair, often caused by worn seals or gaskets.

▸ Coolant system repair, essential for surviving Billings' wide temperature range.

▸ Engine rebuilds and replacements, when internal damage is too extensive for a minor fix.

▸ Sensor and emissions component repair, which can trigger a check engine light.


Our shop also handles engine diagnostics and check engine light readings to pinpoint the root cause before any repair begins.


What Are the Signs Your Engine Needs Repair?

Catching engine problems early can save you from a much larger repair bill. Here are warning signs Billings drivers should never ignore:


1. Your check engine light turns on and stays on.

2. You notice unusual knocking, ticking, or rattling from under the hood.

3. Your vehicle loses power or hesitates during acceleration, especially on highway on-ramps.

4. You see white, blue, or black exhaust smoke coming from the tailpipe.

5. You find puddles of oil or coolant under your vehicle after parking.


If any of these symptoms sound familiar, do not wait. Call (406) 839-9100 and let our team run a proper diagnosis. Prompt repairs can prevent a minor issue from becoming a costly overhaul.

Why Billings Drivers Trust Auto Tech Specialists

Auto Tech Specialists is a family-owned shop with a long track record in the Billings community. Our ASE-certified technicians bring real expertise to every repair, from a simple oil leak to a full engine rebuild. We work on gasoline and diesel vehicles alike, which matters in a region full of diesel trucks.


Loaner vehicles are available, so a repair does not have to derail your day. We also offer repair financing options to help make larger engine jobs more manageable. Drivers from the Heights, the West End, and Lockwood trust our King Avenue West shop to get it right.


You can also read what our customers have to say by visiting Auto Tech Specialists on Google Maps, or check out our local reviews page to see why we have earned 60-plus Google reviews.

Frequently Asked Questions

  • How Do I Know If My Engine Needs Repair or Replacement?

    A proper diagnosis is the only reliable way to know. Our technicians use modern diagnostic equipment to assess the damage and recommend the most cost-effective fix. In many cases, a targeted repair can restore your engine without the need for a full replacement.

  • Does Cold Montana Weather Damage My Engine?

    Yes. Repeated freeze-thaw cycles in Billings winters can degrade gaskets, thicken engine oil, and strain cooling systems. Keeping up with routine maintenance can help reduce cold-weather engine wear.

  • How Long Does an Engine Repair Take?

    It depends on the work needed. Simple repairs like a sensor replacement or minor oil leak may be completed in a day, while a head gasket repair or engine rebuild typically takes longer. We give you an honest timeline before starting.

  • Do You Work on Diesel Trucks as Well as Gas Engines?

    Yes. Auto Tech Specialists services both gasoline and diesel engines. If you drive a diesel truck, you can also learn more on our diesel truck repair page.

  • How Do I Get a Quote for Engine Repair in Billings, MT?

    Contact our shop directly to request a quote. Call (406) 839-9100, email us at atsbillingsmt@gmail.com, or reach out through our contact page. We provide transparent estimates before any work begins.

Schedule Your Engine Repair in Billings, MT Today


Auto Tech Specialists is located at 6809 King Ave. W., Unit B, in Billings, MT, and is open Monday through Thursday from 7:30 AM to 5:30 PM and Friday from 7:30 AM to 12:00 PM. Whether you are dealing with a warning light or a more serious engine issue, our team is ready to help. Call (406) 839-9100 or contact us online to schedule your engine repair service with a shop that Billings drivers have relied on for over two decades.