Every person that registers their car in California has to get a smog check to make sure that it is emissions friendly. I had to take our 2000 Silverado project to get a smog done this morning. I have to admit that I was a little worried because there is a slight misfire, and the intake, MAF sensor, and exhaust have been upgraded. But luckily, she passed with flying colors.
When I was there, I spoke with the tech about what they look for and I have decided to pass that knowledge along.
- First, if your truck is not in good shape, like blowing out black smoke, burning oil, etc, you may want to have a mechanic look it over before wasting your money on a smog check.
- Next, if you have a check engine light on, the visual inspection will not pass. So have it erased, then drive the truck for a while so that you can fill the database with information.
- If you upgrade your intake, make sure that it is CARB approved. If it is not, your truck will not pass the smog check.
- If you upgrade your exhaust, and your truck has a crossover pipe, make sure not to cut that off. The tech told me that since my y-pipe was still intact, it passed the visual. If I had cut that off, it wouldn't have passed.
- A few other things to consider, make sure your tires have the proper air pressure, get an oil change and change your air filter, and look for Smog check facilities that are Pass or Don't Pay. That way, if your truck doesn't pass, you don't have to pay, or you get a free re-test.