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Coming soon Master AutoTech

Coming soon: Madison Automotive is becoming Master AutoTech Rexburg. Until the change, the shop is open as Madison Automotive. Call 208-228-5635 or visit 1334 N Yellowstone Hwy, Rexburg.

Engine Repair in Rexburg, ID

From a check engine light to a full rebuild, our ASE-certified Rexburg techs find the real problem first. Free check engine scan, 24-month / 24,000-mile warranty*.

4.5 ★ · 142 Google reviews

1334 N Yellowstone Hwy, Rexburg, ID 83440 · Get Directions

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

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

24-month / 24,000-mile warranty* on parts & labor

Madison Automotive · becoming Master AutoTech Rexburg

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

Engine Repair at Master AutoTech Rexburg in Rexburg, ID

  • ASE Certified Technicians
  • Best of State Utah
  • Top Workplaces
  • Locally Owned in Rexburg

Master AutoTech Rexburg diagnoses and repairs engines on cars, trucks and SUVs for drivers across Rexburg, Sugar City and the Upper Valley, 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 24-month / 24,000-mile warranty*.

When a check engine light comes on during the commute, our shop is easy to reach: we’re on North Yellowstone Highway just south of East Moody Road, a short drive from US-20. Pull in for a free code scan and we’ll tell you what it means.

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 Rexburg?

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 and Surepay.

Why Choose Master AutoTech Rexburg 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 Rexburg 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.

Rexburg’s hometown shop

Backed by Utah’s largest auto repair franchise and our 24-month / 24,000-mile warranty*.

What Rexburg Drivers Say

4.5 ★ · 142 Google reviews

“We had a great experience. We felt like we were treated well and not trying to be oversold on anything. Normally we have an overwhelming experience with mechanics, but we didn’t here. Very professional and not an expensive job like we were anticipating.”

Danielle Thompson

“Madison Automotive is amazing to work with! They always listen to my concerns and make sure I understand everything when explaining things to me. Definitely recommend this amazing team!”

Annika Smith

“I’ve had them work on both of my vehicles and they’ve been great. They fixed what was needing fixed and didn’t try to sell me on a bunch of other things.”

Morgan Ricks

Trust your engine with a master mechanic

Check engine light on? Call 208-228-5635 to book a free scan.

How Often Should Your Engine Be Serviced?

Most engine repairs start as skipped maintenance. Idaho’s dry air and big temperature swings dry out belts and hoses, and short trips on below-zero winter mornings are hard on oil and batteries. 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 Rexburg

We’re a locally owned shop that treats every vehicle like it belongs to a neighbor. This North Yellowstone Highway shop has served the Upper Valley as Madison Automotive for more than a decade and is joining Master AutoTech, Utah’s largest auto repair franchise. Every technician here earns ASE certification within 90 days of joining the team.

You’ll find us on North Yellowstone Highway just south of East Moody Road, a few minutes from US-20 Exit 337. Pull into our lot right out front.

Wait in our waiting room with free Wi-Fi while we work, or run a quick errand at the nearby Walmart. We take care of drivers from Rexburg, Sugar City, Rigby, St. Anthony and Teton 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 Rexburg for engine repair from across Rexburg, Sugar City and the Upper Valley.

  • Rexburg
  • Sugar City
  • Rigby
  • St. Anthony
  • Teton
  • Ririe
  • Menan
  • Newdale
Call 208-228-5635

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

Get Directions · 1334 N Yellowstone Hwy, Rexburg

✓ 24-month / 24,000-mile warranty* *Exclusions apply.

✓ Financing available · See options

✓ Free check engine light scan

✓ Get rewards in the Master AutoTech app

Nearby Master AutoTech Locations

Master AutoTech Chubbuck

73.7 miles away

4534 Yellowstone Ave
Chubbuck, ID 83202

(208) 203-7675

Engine Repair in Chubbuck

Master AutoTech Pocatello

76.2 miles away

105 N 4th Ave
Pocatello, ID 83201

(208) 254-5069

Engine Repair in Pocatello

Master AutoTech Burley

135.4 miles away

215 W 7th St N
Burley, ID 83318

(208) 261-7474

Engine Repair in Burley

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

Brake Repair

Pads, rotors and brake inspections

Frequently Asked Questions

Yes. Master AutoTech Rexburg is on North Yellowstone Highway just south of East Moody Road at 1334 N Yellowstone Hwy, Rexburg, and we handle engine repair for drivers from Sugar City, Rigby, St. Anthony, Teton, Ririe, Menan and Newdale every day. Call 208-228-5635 to book.

If the light is steady, yes: drive gently and bring it in soon. We’re on North Yellowstone Highway just south of East Moody Road. If it’s flashing, the engine is misfiring, so pull over and call 208-228-5635 before driving further.

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.

Calling 208-228-5635 ahead 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 Rexburg are covered by our 24-month / 24,000-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 Rexburg

Master AutoTech Rexburg
1334 N Yellowstone Hwy
Rexburg, ID 83440
Get Directions

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

Getting here

  • From US-20: Take Exit 337 and head south on North Yellowstone Highway; we’re on the left just past East Moody Road.
  • Parking: Pull into our lot in front of the shop on North Yellowstone Highway.