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Smog Check- Smog test and repair

University Tire and Auto Service is a licensed test and repair facility. Many states require that vehicles have passing results on smog tests. How often it is required for your car to have a smog check varies due to factors such as the state you live in, the model and the year of the car. Click the link below to know more about smock test and repair.

*We are not a STAR station

Smog Check and Repair

Nearly every car owner has heard about smog checks but many are not fully aware of what a smog check entails.The state of California requires that most vehicles have a smog check in order to improve air quality. Smog checks allow us to identify when a car is producing excessive emissions and is releasing them into the same air we breathe.

There are some vehicles that are required to perform their Smog Check specifically at a STAR station, between many possibilities this might be because your vehicle is likely to emit more harmful pollutants than other vehicles. Although University Tire & Auto Service is certified to do smog checks and repairs, we are not a STAR station. During the smog check, our technician makes sure that the systems involved in preventing excessive and harmful emissions, are functioning correctly. These systems include the exhaust gas re-circulation system, ignition timing, gas cap, check engine light, fuel evaporation system, and the On-Board Diagnostic System.

What is a Smog Check?

The Smog Check entails the following four elements:

1.Visual Inspection of emission control components and systems

During the Visual Inspection our technician will verify that the emission control components and systems are in applicable condition and are visibly attached to the vehicle.

2.Functional Inspection of the vehicle's check engine light, ignition timing, exhaust gas recirculation system, fuel evaporative system, and gas cap

During this inspection our technician will verify that the vehicle's check engine light, ignition timing, exhaust gas recirculation system, fuel evaporative system, and gas cap meet the smog check's functional standards.

3.Functional inspection of the vehicle's On-Board Diagnostic (OBD) System

During this inspection, our technician verifies the OBD System is functioning correctly otherwise the smog check will not pass.

4.Tailpipe emissions inspection

During this inspection our technician verifies that harmful emissions such as carbon dioxide and carbon monoxide are not emitting excessively.


If you have further questions for us you can call us at 323-733-1236 or make an appointment. If you want more detailed information on smog checks you can visit the California Bureau of Automotive Repair.


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