Emissions Testing in Millcreek, UT

Master AutoTech Millcreek performs Salt Lake County emissions testing and emissions repairs so drivers across Millcreek, Holladay and the east bench can renew their registration on time. If your vehicle doesn’t pass, we diagnose why, fix it and retest it in the same shop.

Salt Lake County drivers need an emissions test to renew registration, and our shop makes it easy: we’re on Highland Drive just south of 3300 South. Most tests take under half an hour, so you can pick up a few things at the stores next door while we test.

Every Millcreek technician is required to earn ASE certification within 90 days of joining our team.

Salt Lake County requires an emissions test for most gasoline and diesel vehicles to renew registration. Your renewal notice tells you whether your vehicle needs one this year. Here’s what to expect:

1. Bring your vehicle and registration renewal notice. The test is tied to your VIN and plate.
2. We connect to your vehicle’s computer. On 1996 and newer vehicles, the test reads the on-board diagnostic (OBD-II) system and readiness monitors.
3. Results are sent electronically. A pass is reported to the state so you can renew online.
4. If it fails, we explain why. You’ll get the codes and our recommendation before any repair.

These are the repairs we see most often after a failed test:

• Check engine light on
• Faulty oxygen sensors
• Failing catalytic converter
• Loose or damaged gas cap
• EVAP system leaks
• Engine misfires from plugs or coils
• Readiness monitors not set after a battery change

Tip: if you recently replaced the battery or cleared codes, drive normally for a few days before testing so the monitors can reset.

Emissions test fees are set by the county, so the price depends on where your vehicle is registered. If your vehicle fails, repair cost depends on the cause: a gas cap or sensor is a small repair, while a catalytic converter is a bigger one. We always show you the codes and quote the repair before starting.

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.

• Oxygen and air-fuel ratio sensors
• Catalytic converters (see muffler & exhaust)
• EVAP purge and vent valves, hoses and gas caps
• Ignition coils, spark plugs and misfire repair
• EGR valves and passages
• Exhaust leaks ahead of the oxygen sensors

The Salt Lake Valley’s winter inversions trap pollution in the valley, and vehicle emissions are a big part of it. Keeping your vehicle in spec isn’t only a registration requirement; it helps keep Salt Lake County air cleaner and usually improves fuel economy too.

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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. Every technician here earns ASE certification within 90 days of joining the team.

You’ll find us on Highland Drive just south of 3300 South, next to The Home Depot and a few blocks from Millcreek Common. I-80 is about a mile and a half north. Look for the red two-story storefront and pull into our lot on Highland Drive.

Wait in our waiting room with free Wi-Fi, or step out while we work: Millcreek Coffee Roasters, Harmons and the Highland Drive shops are a short walk north. We take care of drivers from Millcreek, East Millcreek, Olympus Cove, Holladay and Sugar House every day.

Drivers come to Master AutoTech Millcreek for emissions testing from across Millcreek, Holladay and the east bench.

• Millcreek
• East Millcreek
• Olympus Cove
• Holladay
• Sugar House
• South Salt Lake
• Murray
• Downtown Salt Lake City