Professional Engine Tune-Up Services in Billings, MT

Auto repair garage interior with red car, tools, and shop signs visible through a doorway

Is your vehicle feeling sluggish, getting worse gas mileage, or struggling to start? Your engine may be overdue for a tune-up. Auto Tech Specialists in Billings, MT, provides professional engine tune-up services that restore performance, improve fuel economy, and help your vehicle run the way it was designed to. Our technicians take a comprehensive approach to every tune-up, addressing all the wear items that affect engine efficiency.

Call (406) 839-9100 to schedule your engine tune-up today.

What Is Included in an Engine Tune-Up?

A proper engine tune-up at Auto Tech Specialists goes well beyond simply replacing spark plugs. Our comprehensive tune-up service includes a full inspection and replacement of all critical ignition and fuel system wear components, as well as a complete engine performance evaluation using professional diagnostic equipment. We tailor the service to your specific vehicle and its manufacturer-recommended maintenance schedule.

Person using a laptop to diagnose a car engine with tools on the open hood

Spark Plug Replacement

Spark plugs are the most critical component in a gasoline engine's ignition system. Over time, spark plugs develop deposits, the electrode gap widens, and the spark becomes weak and inconsistent. This leads to misfires, rough idling, poor fuel economy, and reduced power. An ASE Certified Mechanic installs the correct spark plug specification for your engine, whether that is copper, iridium, or platinum, and gaps each plug precisely for optimal combustion performance.

Mechanic’s gloved hand working on engine components under the hood in a garage
Car engine bay with black cover, silver components, and a red battery terminal

How Often Should Spark Plugs Be Replaced?

Replacement intervals vary depending on spark plug type and vehicle. Standard copper plugs typically require replacement every 30,000 miles, while premium iridium and platinum plugs can last 60,000 to 100,000 miles. Our technicians will check your vehicle's service history and recommend the right interval for your engine in Billings, MT's driving conditions.

Ignition System Inspection & Service

Beyond spark plugs, the ignition system includes ignition coils, spark plug wires (on older vehicles), and the distributor cap and rotor (on applicable systems). A failing ignition coil or cracked plug wire causes misfires just as easily as a worn spark plug. An ASE Certified Mechanic inspects all ignition components as part of a complete tune-up and replaces any items showing signs of wear or failure.

Close-up of a car engine with red ignition coils and black spark plug wires
Car engine bay with plastic cover, battery, hoses, and fluid reservoirs under the hood.

Fuel System Service

Clean fuel injectors and a properly functioning fuel pressure regulator are essential for efficient combustion. Auto Tech Specialists includes a fuel system inspection with every engine tune-up. We check fuel pressure, inspect injectors for performance issues, and can perform fuel injector cleaning to restore proper spray patterns. A clean, efficient fuel system ensures your engine gets the precise fuel delivery it needs for smooth operation and maximum efficiency.

Two red cone air filters in a car engine bay, one with a silver cap.

Air Intake & Filter Inspection

A clogged air filter restricts airflow to the engine, increasing fuel consumption and reducing power. As part of every tune-up, an ASE Certified Mechanic inspects the engine air filter and replaces it if necessary. We also check the intake tract for cracks, loose connections, or obstructions that could allow unmetered air into the engine and cause running problems.

Close-up of a car’s chrome dual exhaust pipes beneath a gray rear bumper

PCV Valve & Emissions Components

The PCV (Positive Crankcase Ventilation) valve is a small but important component that prevents harmful crankcase vapors from being released into the atmosphere. A stuck or clogged PCV valve causes oil leaks, increased oil consumption, and rough idle. An ASE Certified Mechanic checks and replaces the PCV valve as part of a complete tune-up to ensure proper emissions system function.

Engine Performance Evaluation

Every tune-up at Auto Tech Specialists concludes with a comprehensive engine performance evaluation. We check compression if indicated, scan for fault codes, and verify that idle speed, timing, and fuel trim are all within specification. This final step confirms that our work has achieved the desired results and gives you confidence that your engine is performing at its best.

Mechanic using a laptop to diagnose a car engine in an open hood bay

Call (406) 839-9100 to schedule your tune-up in Billings, MT.