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Transmission Repair in St. George, UT
Slipping, rough shifts or a leak? Our ASE-certified St. George techs diagnose first and recommend the right fix, backed by a 12-month / 12,000-mile warranty*.
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.

- ASE Certified Technicians
- Best of State Utah
- Top Workplaces
- Family Owned Since 1963
Master AutoTech St. George diagnoses, services and repairs automatic and manual transmissions for drivers across St. George, Santa Clara and Ivins. We tell you whether you need a fluid service, a repair or a rebuild before any work starts, and back the work with our 12-month / 12,000-mile warranty*.
Stop-and-go traffic on Sunset Boulevard and the climb up Snow Canyon heat transmission fluid and wear it out faster. Our shop is on Sunset Boulevard at 1400 West, so we’re easy to reach before a small shifting problem turns into a rebuild.
Transmission Repair Services We Offer
Transmission diagnosis
Code scan, fluid inspection and road test to find what’s really wrong.
Fluid service
Drain-and-fill or exchange with the fluid your manufacturer specifies.
Transmission repairs
Solenoids, sensors, seals, gaskets, cooler lines and valve body repairs.
Clutch replacement
Clutch, pressure plate and flywheel service for manual transmissions.
Transmission rebuilds
Disassembly, inspection and rebuild with quality parts when repair isn’t enough.
Drivetrain service
Differentials, transfer cases and CV axles on trucks, SUVs and AWD vehicles.
What St. George Drivers Say
How Often Should You Service Your Transmission?
Most automatic transmissions need a fluid service every 30,000 to 60,000 miles; check your owner’s manual, because some “lifetime” fluids still benefit from changing. Towing, stop-and-go traffic on Sunset Boulevard and climbing Snow Canyon heat the fluid and break it down faster.
| Driving condition | Recommended fluid service |
|---|---|
| Normal commuting | Every 50,000–60,000 miles |
| Towing, hauling or mountain driving | Every 30,000 miles |
| Manual transmission | Every 30,000–60,000 miles |
| CVT | Follow the manufacturer schedule closely |
Signs You Need Transmission Repair
Catching transmission problems early can mean a repair instead of a rebuild. Watch for:
- Slipping gears or RPMs that climb without acceleration
- Rough, harsh or delayed shifts
- A delay before the car moves in Drive or Reverse
- Red or brown fluid under the vehicle
- A burning smell after driving
- Whining, clunking or humming noises
- The check engine or transmission warning light
How Much Does Transmission Repair Cost in St. George?
Transmission costs range from a fluid service to a full rebuild, so diagnosis comes first. Price depends on the transmission type (automatic, manual or CVT), what failed, and your vehicle. Many shifting problems are solved with a solenoid, sensor or fluid service rather than a rebuild. We’ll explain every option and price before we start.
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.
We’re here to help
Slipping or shifting hard? Book a transmission check or call 435-264-8433.
Why Choose Master AutoTech St. George for Transmission Repair
Repair before replace
We look for the fix that solves the problem, not the most expensive one.
ASE-certified technicians
Required to earn ASE certification within 90 days of joining our St. George team.
Quality parts & fluids
OEM or equivalent parts and the exact fluid your transmission specifies.
Warranty-backed
Transmission repairs are covered for 12 months or 12,000 miles.
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.
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.

Areas We Serve
Drivers come to Master AutoTech St. George for transmission repair from across St. George, Santa Clara and Ivins.
- St. George
- Santa Clara
- Ivins
- Washington
- Bloomington
- Hurricane
- Cedar City
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
✓ Get rewards in the Master AutoTech app
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
Master AutoTech South Orem
242.2 miles away
184 State St
Orem, UT 84058
Other Services at This Location
Frequently Asked Questions
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.



