Thursday 16 April 2020

What is Smog Check and How to Pass it?

Smog Check and Its Importance | Star Smog Check Test Station Vacaville


Smog check or emission test is important and with the increasing number of vehicles the test has
 become mandatory in most of the US states along with several other countries all over the world.As per the Environmental Protection Agency (EPA), typically a one passenger vehicle used daily equates to 4.6 metric tons of carbon dioxide annually. An onboard technology is used for vehicle emission testing to ensure that the vehicle in transport meets certain and engine standards. Rancho Smog Center is located as a smog check station in Rancho Cucamonga, CA. We use the latest STAR certified equipment to test your vehicles.




In the US, a smog check is mandatory every 2 years in most states. Only a few specific vehicles have to pass this test depending on their age, model and original registered area. To control the pollution, the EPA has stepped in to ensure that all vehicles pass emission inspections maintaining the national air quality standards. However, California is the only state that is allowed to adopt its own emission standards and these are the toughest standards in the country. In the state of California, according to the Department of Motor Vehicles (DMV) smog inspections are required for all vehicles except diesel powered vehicles 1997 year models. 
Make Rancho Smog Centre your one stop solution for Smog Check Station in Rancho Cucamonga.


1. Don’t Forget to check the “Check Engine” Light

If your “Check Engine” light is on you may not pass the automatic smog test. A constantly illuminated Check Engine light is an automatic indicator of smog failure.

2. Check if the battery is recently disconnected

If you have recently replaced the battery wait at least a week before taking to the smog test.  
When the battery gets disconnected, the vehicles’ self-monitors are erased. Without the Emission Monitors your vehicle will not pass a smog test. You will have to drive 100-200 miles and the emission monitor will be restored.


Contaminated or dirty oil is high in hydrocarbons which may cause smog test failure. Avoiding oil changes can cause premature engine wear and also cause your vehicle to fail. So make sure to fill up your car with fresh oil and get them. If you are looking for a smog inspection station in Rancho Cucamonga, come to Rancho Smog Centre. We provide guaranteed hassle-free and honest services with our highly skilled and knowledgeable technicians so that you vehicles pass the DMV smog test.