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Engine Repair in Downtown SLC on Main Street

From a check engine light to a full rebuild, our ASE-certified Downtown SLC techs find the real problem first. Free check engine scan, 12-month / 12,000-mile warranty*.

Or request an estimate

4.7 ★ · 869 Google reviews

690 Main St, Salt Lake City, UT 84101 · Get Directions

Mon-Fri 7:30am-6:00pm | Sat 8:00am-4:00pm | Sun Closed ·

  • Waiting room
  • Free Wi-Fi
  • Open Saturdays
  • 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.

Engine repair at Master AutoTech Downtown SLC in Salt Lake City, UT

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

Master AutoTech Downtown SLC diagnoses and repairs engines on cars, trucks and SUVs for drivers across downtown and central Salt Lake City, from a misfire or oil leak to a full rebuild. We start with a free check engine light scan, explain what we find, and back engine repairs with our 12-month / 12,000-mile warranty*.

When a check engine light comes on during the commute, our shop is easy to reach: we’re on Main Street just north of 700 South, a block from the 600 South TRAX station, with the 600 South connector to I-15 one block north. Pull in for a free code scan, and if we need the car longer, TRAX gets you back to work.

Engine Repair Services We Offer

Engine diagnostics

Free check engine light scan, then hands-on testing to find the root cause, not just the code.

Engine repairs

Ignition, fuel system, sensors, gaskets, timing components and more, repaired with quality parts.

Oil & coolant leaks

Valve cover, oil pan, head gasket and water pump leaks traced and sealed.

Cooling system

Thermostats, radiators, hoses and water pumps to stop overheating.

Engine rebuilds

Inspection, machining and reassembly to factory specifications when repair isn’t enough.

Preventive maintenance

Oil changes, filters, belts and tune-ups that keep small problems from becoming big ones.

Signs You Need Engine Repair

Most engine problems give you warning first, and catching them early often means a repair instead of a rebuild. Here’s what the common signs usually point to:

  • Check engine lightSteady can mean anything from a loose gas cap to a failing sensor. Flashing means an active misfire: stop driving and call us.
  • Knocking, ticking or grindingWorn internal parts, low oil or valve train problems.
  • Loss of power or hesitationUsually the fuel or ignition system.
  • Rough idle or stallingIgnition, fuel or vacuum leaks, often with vibration at a stop.
  • Overheating or steamA bad thermostat, water pump, radiator or a coolant leak.
  • Hard startingEspecially on cold mornings: the battery, starter, ignition or fuel delivery.
  • Fluid spots or burning smellsOil, coolant or other fluids leaking, sometimes onto hot engine parts.
  • A sudden drop in MPGFaulty sensors, fuel system problems or worn parts.
  • Vibration at speedEngine mounts, misfires or a transmission problem.
  • Visible damageCracked hoses, worn belts or loose wiring under the hood.

What your exhaust smoke color means: blue usually means burning oil from worn piston rings or valve seals; white can mean coolant in the combustion chamber from a failing head gasket; black means the engine is running too rich, often a fuel injection or air intake problem.

How Much Does Engine Repair Cost in Salt Lake City?

Engine repair costs range widely, from a sensor or ignition coil to a head gasket or rebuild. The biggest factors are what failed, how much labor it takes to reach, your vehicle’s make and engine, and the parts grade. That’s why we diagnose first. The check engine light scan is free, and we give you an estimate before any repair begins.

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.

Why Choose Master AutoTech Downtown SLC for Engine Repair

Diagnose before we repair

A free scan plus hands-on testing, so you pay for the fix you need and nothing else.

ASE-certified technicians

Every Downtown SLC tech must earn ASE certification within 90 days of joining.

Honest advice

If a repair can wait, we’ll tell you. If it can’t, we’ll show you why.

Utah family business since 1963

Backed by the state’s largest auto repair franchise and our 12-month / 12,000-mile warranty*.

What Our Main Street Customers Say

4.7 ★ · 869 Google reviews

“They were very busy but happened to be able to work me in. Completed the job in record time and the guy at the front desk, I believe his name was Kelly, was very, very pleasant. Let’s see how the muffler holds up. It was really a good price.”

Sharon Eastman

“Great customer service and quick to complete the job. Mike kept me notified every step of the way and I always felt like my car was in good hands. Prices are very reasonable. Highly recommend”

Ethan Squires

“This was one of the best experiences I’ve had with an automotive shop. Phil was a great guy who really took care of me and Don did great, quick work on my truck. Highly recommend!”

Sasa Dobrijevic

Trust your engine with a master mechanic

Check engine light on? Book a free scan or call (801) 305-3049.

How Often Should Your Engine Be Serviced?

Most engine repairs start as skipped maintenance. Utah’s dry air and temperature swings dry out belts and hoses, and short winter trips are hard on oil. Follow your owner’s manual, and use this as a guide:

Service Typical interval
Oil & filter change 3,000–7,500 miles depending on oil type
Engine air filter Every 15,000–30,000 miles, sooner on dusty roads
Spark plugs Every 30,000–100,000 miles depending on plug type
Timing belt (if equipped) Every 60,000–100,000 miles
Coolant flush Every 30,000–60,000 miles

About Master AutoTech Downtown SLC

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 downtown location served Salt Lake City as Master Muffler & Brake before the rebrand. Every technician here earns ASE certification within 90 days of joining the team. Meet our team.

You’ll find us on Main Street just north of 700 South, a block from the 600 South TRAX station, with West Temple one block west and State Street one block east. 600 South, one block north, connects downtown with I-15. Look for the big Master AutoTech sign and pull into our lot on Main Street.

Wait in our waiting room with free Wi-Fi, or step out while we work: Sol Agave and Millcreek Coffee Roasters are a short walk up Main Street, The State Room is a block east on State Street, and TRAX stops a block north at 600 South. We take care of drivers from downtown, Central City, the Granary District, Ballpark, Central Ninth and the Avenues 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 Downtown SLC for engine repair from across downtown and central Salt Lake City.

Book an AppointmentCall (801) 305-3049

Mon-Fri 7:30am-6:00pm | Sat 8:00am-4:00pm | Sun Closed

Get Directions · 690 Main St, Salt Lake City

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

✓ Financing available · See options

✓ Free check engine light scan

✓ 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

Part of Master AutoTech Salt Lake City, one of four Master AutoTech shops across the city. See all Salt Lake City shops

Master AutoTech Downtown State SLC

0.6 miles away

1050 S State St
Salt Lake City, UT 84111

801-609-9709

Engine Repair in Downtown State SLC

Master AutoTech Millcreek

4.5 miles away

3385 Highland Dr
Salt Lake City, UT 84106

801-905-8190

Engine Repair in Millcreek

Master AutoTech Bountiful

7.3 miles away

1025 US-89
North Salt Lake, UT 84054

801-682-4406

Engine Repair in Bountiful

Other Services at This Location

Tune-Ups

Plugs, filters and fluid service

Oil Changes

Synthetic, blend and high-mileage oil

Transmission Repair

Slipping, rough shifts and service

Muffler & Exhaust

Mufflers, pipes and custom exhaust

Emissions Testing

Salt Lake County tests and repairs

Brake Repair

Pads, rotors and brake inspections

Frequently Asked Questions

Yes. Master AutoTech Downtown SLC is on Main Street just north of 700 South, a block from the 600 South TRAX station at 690 Main St, Salt Lake City, and we handle engine repair for drivers from Downtown Salt Lake City, Central City, Ballpark, Granary District, Central Ninth, Liberty Wells, The Avenues, Capitol Hill and Marmalade every day. Book online or call (801) 305-3049.

If the light is steady, yes: drive gently and bring it in soon. We’re on Main Street just north of 700 South, a block from the 600 South TRAX station. If it’s flashing, the engine is misfiring, so pull over and call (801) 305-3049 before driving further. A lit check engine light also fails a Salt Lake County emissions test, so it’s worth fixing before you renew your registration.

Head west on 700 South one block to Main Street and turn right. Our address is 690 Main St, Salt Lake City.

It depends on what failed. A sensor or coil is a small repair; a head gasket or rebuild is a major one. The check engine light scan is free, and we give you an estimate before any work starts.

Yes. We’ll read the codes, explain what they mean in plain language and recommend next steps. If a deeper diagnosis is needed to confirm the cause, we’ll tell you before doing it.

Simple repairs like coils, sensors or a thermostat are often done the same day. Larger jobs such as head gaskets, timing components or rebuilds can take several days depending on parts. We’ll give you a timeline up front.

Booking online or calling (801) 305-3049 is fastest, and walk-ins are welcome. If your check engine light is flashing, stop driving and call us, because a flashing light can mean damage is happening.

Yes. Engine repairs at Master AutoTech Downtown SLC are covered by our 12-month / 12,000-mile warranty* on parts and labor.

Yes. We repair engines on cars, pickups, SUVs and hybrids of nearly every make, from daily commuters to work trucks.

Visit Master AutoTech Downtown SLC

Master AutoTech Downtown SLC
690 Main St
Salt Lake City, UT 84101
Get Directions

Mon-Fri 7:30am-6:00pm
Sat 8:00am-4:00pm
Sun Closed

Getting here

  • From I-15: Take 600 South east into downtown, turn right on Main Street, and we’re just north of 700 South.
  • By TRAX: Ride to the 600 South station on Main Street; we’re about a block south.
  • From State Street: Head west on 700 South one block to Main Street and turn right.
  • Parking: Pull into our lot on Main Street, right under the Master AutoTech sign.