Do These 5 Tips To Pass The Smog Test

We all love our cars, and the smog test is one of the most important evaluations our beloved vehicles have to go through. Not only does the smog test ensure that your car conforms to all vehicle laws and standards and confirms it’s running in top shape, but it also helps protect the environment from dangerous exhaust fumes.

This is why it is absolutely necessary to keep your vehicle in top shape and to pass the smog test when you are required to take it. Unfortunately, due to a variety of reasons, a lot of people end up failing their smog tests.

Of course, in some cases there’s either an obvious fault with the vehicle or the car is simply an older model that’s been left sitting for quite some time.

However, in a majority of failed smog tests, this is not the case. Not only is this a major inconvenience, but also quite confusing for drivers and vehicle owners.

So what should you look out for? You need not worry because we have got your back. As your top STAR certified smog test station in San Jose, California, San Jose Star Smog has seen it all!

These are the top 5 factors that can affect your smog test:

1. Pending Repairs

Keeping your car in perfect shape is the key to getting a perfect score on your smog test. You should never get your smog test done if your car needs repairs or you have some pending.

You see, the smog test is not only designed to test the emissions of your car. In fact, a lot of factors account towards the final score. Make sure you have completed all immediate repairs that were needed before coming in for your test.

In case you are not able to complete them all, you should get your major engine repairs finished at any cost. Otherwise, you risk falling drastically.

2. Engine Temperature

Never, ever get a smog inspection done with a cold engine. It is not a good idea to simply start an engine that’s been sitting all night – or worse, all week – in a garage.

Always make sure to drive at least 20-30 minutes before making your way towards the smog test. What this does is that it ensures that your engine has plenty of time and running to warm up.

This means when you finally reach your smog test station, your fuel mixture and combustion readings will have reach optimum levels.

3 Battery Status

If you’ve recently replaced, or disconnected your battery, there’s a decent chance that the memory on your onboard sensors and test monitors has been erased.

You shouldn’t ever go for a smog test after a recent battery replacement or reconnection. The smog test facility requires these readings in order to complete your vehicle’s smog test.

Don’t worry; this is not a cause for alarm. All you have to do is drive around for a few days (ideally a week) so that your sensors have enough data logged again.

4 Dirty Oil

If you haven’t changed your engine oil in a long time, make sure you replace it all and top your vehicle off with fresh lubricant before going for your smog test.

Cars are almost alive. They are built to breathe and dirty oil can cause a lot of harmful fumes to build up in the engine bay. These fumes get into your intake and end up in your combustion system.

Always make sure your oil is fresh and clean before a smog inspection.

5 Tire Inflation

A smog test requires your car to be run on a dynamometer in order to take various readings.

A technician will drive your car for a set amount of time on the Dyno. The correct tire pressure is required for your car to run smoothly, efficiently, and in a stable manner.

If your tires are not properly inflated, this can affect the way your car behaves on the machine and as a result, negatively affect your results.

Bonus – Your smog test station

Not all smog stations are the same. When you have to bring your vehicle in for a smog inspection, make sure you bring it to a STAR certified testing station.

At San Jose Star Smog Check not only are we STAR certified by the California Bureau of Automotive Repairs we also actively look out for you.

We are a test-only facility and we don’t benefit financially if your vehicle fails the test. On top of that, we also offer FREE 30-day retests for cars made in 2000 or newer!

So what are you waiting for? San Jose Star Smog is open 7 days a week – just drop by whenever you need a smog test!

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