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Car Tune-Up in St. George, UT

Restore power and fuel economy with a complete tune-up from ASE-certified St. George techs, backed by a 12-month / 12,000-mile warranty*.

Or request an estimate

4.4 ★ · 174 Google reviews

1380 W Sunset Blvd, St. George, UT 84770 · Get Directions

Mon-Fri 8:00am-5:30pm | Sat Closed | Sun Closed ·

  • Waiting room
  • Free Wi-Fi
  • Walk-ins welcome
  • Online booking

12-month / 12,000-mile warranty* on parts & labor

Honored at every Master AutoTech location · Serving Utah and Idaho since 1963

*Exclusions apply. Ask your service advisor for full warranty terms.

Car Tune-Up at Master AutoTech St. George in St. George, UT

  • ASE Certified Technicians
  • Best of State Utah
  • Top Workplaces
  • Family Owned Since 1963

Master AutoTech St. George performs complete car and truck tune-ups for drivers across St. George, Santa Clara and Ivins. A tune-up restores power and fuel economy and catches worn parts before they leave you stranded, and our work is backed by a 12-month / 12,000-mile warranty*.

Short trips, stop-and-go traffic on Sunset Boulevard and cold winter starts are hard on plugs, filters and belts. Our shop is on Sunset Boulevard at 1400 West, so a tune-up fits easily around work or errands.

Tune-Up Services We Offer

Standard tune-up

Spark plugs, filters and a full inspection of ignition, fuel and air systems.

Major tune-up

Adds belts, hoses, PCV valve and fuel system service at higher mileage.

Fuel system cleaning

Removes carbon from injectors and intake for smoother running.

Performance check

Diagnosis of rough idle, hesitation or lost fuel economy.

What Happens During Your Tune-Up

Every gas-powered vehicle gets our tune-up checklist. Here’s what we inspect and when each item is typically due:

  1. Spark plugs. Inspected and replaced when worn. Typically every 30,000–100,000 miles depending on plug type.
  2. Ignition coils & plug wires. Tested for misfires; wires checked on older vehicles. As needed.
  3. Engine air filter. Replaced when dirty. Every 15,000–30,000 miles, sooner on dusty roads.
  4. Fuel filter. Replaced where serviceable. Every 30,000–60,000 miles.
  5. Belts & hoses. Checked for cracks and wear; Utah’s dry climate ages rubber fast. Every visit.
  6. Battery & charging. Tested so you don’t get stranded on a cold morning. Every visit.
  7. Oxygen sensors. Checked so the engine burns the right amount of fuel. As needed.
  8. PCV valve. Inspected and replaced to control crankcase pressure. Every 30,000–50,000 miles.
  9. Distributor cap & rotor. On older vehicles that still have one. As needed.

You leave with a report of everything we checked and replaced, so you have a record of what was done and when.

Why get a tune-up if your car runs fine? Leaks, worn parts and failing sensors often don’t show symptoms until they cause a bigger, more expensive repair. A tune-up catches them while they’re still small.

How Much Does a Tune-Up Cost in St. George?

Tune-up cost depends on your engine and what’s due. A four-cylinder with easy-to-reach plugs costs less than a V6 or V8 where the intake has to come off, and iridium plugs cost more than copper. We check your mileage and service history, recommend only what’s due, and quote it before we start.

We keep our prices competitive and upfront: you get an estimate and approve it before any work starts.

Why Choose Master AutoTech St. George for Your Tune-Up

ASE-certified technicians

Every St. George tech earns ASE certification within 90 days of joining.

Only what’s due

We follow your manufacturer schedule and skip what doesn’t need replacing.

Local know-how

We know what Washington County winters and dry summers do to belts, hoses and batteries.

Family business since 1963

Honest service from Utah’s largest auto repair franchise.

Current Offers

Featured offer

Buy 3 Tires, Get the 4th Free

On new tires installed at Master AutoTech, October 1 – December 31, 2026. Ends December 31, 2026. See offer details.

More coupons & specials

Browse every current Master AutoTech coupon, plus our ProCare, Certified and Master service packages.

View All Coupons & Specials

Financing & Payment

Need to spread out the cost? Master AutoTech offers several financing options, including the Goodyear Credit Card (6-month special financing on purchases of $250 or more), the Synchrony Car Care credit card, the 1stMILE Mastercard, Snap Finance, Acima, Surepay and RC Willey financing.

Does something feel wrong?

Rough idle, hesitation or worse gas mileage? Book a tune-up or call 435-264-8433.

Signs You Need a Tune-Up

  • Dropping fuel economy
  • Rough idle or engine misfires
  • Hesitation or sluggish acceleration
  • Hard starting, especially on cold mornings
  • The check engine light is on
  • Engine knocking or pinging

How Often Should You Get a Tune-Up?

Most modern vehicles need a tune-up every 30,000 to 50,000 miles; older vehicles without electronic ignition every 10,000 to 20,000 miles. Your owner’s manual has the exact schedule. Short trips, towing and dusty roads are severe service and shorten intervals.

What St. George Drivers Say

About Master AutoTech St. George

We’re a family-owned shop that treats every vehicle like it belongs to a neighbor. Master AutoTech started as Master Muffler in 1963 and grew into Utah’s largest auto repair franchise, and this Sunset Boulevard shop brings that experience to St. George. Every technician here earns ASE certification within 90 days of joining the team.

You’ll find us on Sunset Boulevard at 1400 West, on the way to Santa Clara and Snow Canyon, a short drive west of I-15. Look for our Master AutoTech sign on Sunset Boulevard and pull into our lot.

Wait in our waiting room with free Wi-Fi, or step out while we work: Perks!, Anasazi Steakhouse and Arctic Circle are a short walk away. We take care of drivers from St. George, Santa Clara, Ivins, Washington and Bloomington every day.

Free app · iPhone & Android

Download the Master AutoTech app and earn rewards

  • Rewards & offersOffers and rewards land right in the app, not in a drawer full of coupons.
  • Check-engine alertsSee the actual codes your car is throwing and message the shop about them.
  • Maintenance trackingKnow what’s due and what’s overdue, with a weekly report on your vehicle.
  • Glove BoxKeep registration, insurance and service records in one place.

How to get rewards: download the free app and your offers and rewards land right in it, ready to use at your next visit. Open the app before your visit to see what’s waiting for you. Book a Master Oil Change and get a free Master Link that connects your car to the app.

Download on the App StoreGet it on Google Play
Master AutoTech app home screen and vehicle profile

Areas We Serve

Drivers come to Master AutoTech St. George for tune-ups from across St. George, Santa Clara and Ivins.

Book an AppointmentCall 435-264-8433

Mon-Fri 8:00am-5:30pm | Sat Closed | Sun Closed

Get Directions · 1380 W Sunset Blvd, St. George

✓ 12-month / 12,000-mile warranty* *Exclusions apply.

✓ Financing available · See options

✓ Competitive, upfront pricing

✓ Get rewards in the Master AutoTech app

Offer

Buy 3 Tires, Get the 4th Free

Buy 3 tires, get the 4th free, Oct 1 – Dec 31.

Ends December 31, 2026 · Details

Nearby Master AutoTech Locations

Master AutoTech Cedar City

49.3 miles away

590 N Main St
Cedar City, UT 84721

435-238-4755

Tune-Up in Cedar City

Master AutoTech South Orem

242.2 miles away

184 State St
Orem, UT 84058

801-877-0305

Tune-Up in South Orem

Master AutoTech Vernal

318.2 miles away

1758 S 1500 E
Vernal, UT 84078

435-625-3735

Tune-Up in Vernal

Other Services at This Location

Oil Changes

Synthetic, blend and high-mileage oil

Engine Repair

Diagnosis, repairs and rebuilds

Brake Repair

Pads, rotors and brake inspections

Transmission Repair

Slipping, rough shifts and service

AC Repair

Recharge, leak repair and compressors

Tires

New tires, rotation and flat repair

Frequently Asked Questions

Yes. Master AutoTech St. George is on Sunset Boulevard at 1400 West at 1380 W Sunset Blvd, St. George, and we handle tune-ups for drivers from Santa Clara, Ivins, Washington, Bloomington and Hurricane every day. Book online or call 435-264-8433.

Most modern cars need new spark plugs every 60,000 to 100,000 miles, with filters checked every oil change. Short trips and summer heat that tops 100 degrees wear parts faster, so we’ll check yours against the manufacturer schedule.

It depends on your engine and which parts are due. We check your mileage and service history, recommend only what your vehicle needs, and give you the price before any work starts.

Most tune-ups take one to three hours. Engines where the intake must be removed to reach the rear spark plugs take longer. We’ll give you a time estimate when you drop off.

Booking online or calling 435-264-8433 is fastest, and walk-ins are welcome. We’re open Monday through Friday.

Yes. Tune-up parts and labor at Master AutoTech St. George are covered by our 12-month / 12,000-mile warranty*.

It can. Short trips and stop-and-go traffic are considered severe service, so city cars may need plugs, filters and fluids sooner than the standard interval. We’ll check your mileage and history and tell you what’s due.

Yes, though less often. Spark plugs, filters, belts and sensors still wear out. Modern vehicles typically need a tune-up every 30,000 to 50,000 miles.

An oil change replaces the oil and filter. A tune-up focuses on ignition, fuel and air systems: spark plugs, coils, filters, belts and sensors. Both are part of regular maintenance.

Visit Master AutoTech St. George

Master AutoTech St. George
1380 W Sunset Blvd
St. George, UT 84770
Get Directions

Mon-Fri 8:00am-5:30pm
Sat Closed
Sun Closed

Getting here

  • From I-15: Take the St. George Boulevard or Bluff Street exit and head west on Sunset Boulevard to 1400 West.
  • From Santa Clara: Head east on Sunset Boulevard; we’re at 1400 West.
  • Parking: Pull into our lot on Sunset Boulevard; there’s covered parking beside the shop.