Emissions & Exhaust
My car failed an emissions test. Now what?
You try to figure out why it failed the test, get the problem fixed and then try to pass the test again. This may or may not be an ordeal depending on what's wrong with your engine, how easily the problem is to diagnose and repair, and whether or not you flunk a retest.
But Washington State periodic emissions testing is required, you cannot get your vehicle registration unless you either pass the test or meet the "waiver" requirements.
How To Improve Your Odds Of Passing An Emissions Test
The best way to improve the odds of passing an emissions test is to maintain your vehicle. A well-maintained engine is usually a clean engine as far as emissions are concerned.
Changing the spark plugs, air filter, fuel filter, PCV valve and oil regularly (or just before an emissions test), checking ignition timing and adjusting the carburetor (if you have an older vehicle) can reduce emissions and greatly improve your chance of passing.
Just before the test, make sure your vehicle is at normal operating temperature. Take it out for a short spin down the expressway. This will heat up the oxygen sensor and catalytic converter to minimize emissions.
Washington State's Emission Laws »
Emissions Diagnostics
We check fuel, ignition and onboard computer systems for operation, check for missing or defective emission components, test exhaust reading, perform basic testing of failure codes and advise client of any needed repairs.
- Auto and light truck $69.95 *
- Full size vans $ 89.95
* prices for most vehicles