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Mon-Fri: 8AM – 4:30PM
Saturday: 8AM – 2PM

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Smog Check in Glendora

What is Required to Pass a Smog Check in Glendora?

Located adjacent to Glendora, Sornoso Automotive Repair provides smog checks for all makes and models of vehicles. As a top-rated STAR-certified smog check and repair station, we can conduct your smog check in just minutes. No appointment is necessary.

During your smog check the following will be inspected. If any of these do not meet the state standards, your vehicle will not pass the smog check to pass your smog check.

Functional inspection of ignition timing
Functional inspection of your vehicle’s exhaust recirculation system
Functional inspection of your vehicle’s fuel evaporation system
Functional inspection of your vehicle’s tailpipe emissions
Visual function of your vehicle’s gas cap
Visual inspection of the emission control components in your vehicle
Visual inspection of your vehicle’s on-board diagnostic system
Visual inspection to confirm check engine light is not on

Glendora Auto Smog Check
Smog Testing In Glendora

Most cars, trucks, and SUVs will be required to pass a smog check every other year. This applies to both combustion engine and hybrid cars, trucks, and SUVs. Electric vehicles are not required to have smog check performed.

Vehicles older than 8 years old may be subjected to more frequent smog checks. If you have purchased a used vehicle from a private party or an auto dealer, you may also be required to obtain a smog check soon after purchase.

If you’ve recently moved to California, you will need to take your car in for a smog check as a condition of registering your vehicle in the state.

Issues that Can Cause Your Vehicle to Fail a Smog Check

If your vehicle fails to pass a smog check, you will need to make repairs that will allow it to pass the test. Sornoso Automotive Repair is a full-service repair shop. We service all makes and models of foreign and domestic vehicles, and can often repair your vehicle quickly, so you can continue with your smog check.

Some of the most common reasons that your car may fail a smog check include:

Problems with your vehicle’s oxygen sensor
Your car’s check engine light is on
Your vehicle’s air filters need to be replaced
Your spark plugs are malfunctioning
Your vehicle has a fuel injector leak
Your gas cap does not fit properly or is damaged
Your catalytic converter is faulty
The EVAP system is malfunctioning
Major engine problems

Glendora Smog Check

In some cases, the problem can be solved immediately. For example, in some vehicles failing to close the gas cap all the way will prompt the check engine light to come on. If this is the case, the computer simply needs to be reset. In other cases, a recently changed battery or jumpstarted battery may cause the check engine light to come on. In other cases, something as simple as having the air filters replaced, can resolve the problem.

If your vehicle is relatively new, and you take diligent care to have regular service, including oil changes, your car will likely pass the smog check. But if your check engine light is on, you should not take your vehicle for the test, as the light automatically fails the car.

Instead, bring your car to Sornoso Automotive repair for fast and accurate diagnostic testing. Once we determine the cause of the check engine light, you’ll be provided with an accurate estimate and timeline for repairs. Many repairs can be made the same day.

Get a Smog Check Today

If you’re due for a smog check, be sure to view our current coupons. Then, head to
925 N. Citrus Avenue in Covina, just minutes from Glendora. Sornoso Automotive is open Monday – Friday from 8:00 am – 4:30 pm. We are also open on Saturday from 8:00 am – 2:00 pm. If you have any questions, or would like to book repairs, send us a message or call 626-966-0404.

We are proud to announce that all our service technicians are ASE Certified.


Sornoso Automotive
925 N Citrus Ave
Covina, CA 91722-2736

Working Hours

Mon-Fri: 8am-4:30pm
Saturday: 8am-2pm
Sunday: Closed