Emission tests are required every year on all registered vehicles in the state of Texas. Emission testing in Texas is known as Air Check Texas. The emission testing varies based on which county you reside in. All City Garage DFW auto repair locations offer emission testing performed by expert mechanics.

There are two important valves involved when checking the emissions system. The Exhaust Gas Recirculation, better known as the EGR valve, is part of the exhaust emission control system. This valve circulates exhaust gases back into the combustion chamber by recirculation of the gases back into the intake. The second valve is known as the PCV, Positive Crankcase Ventilation. The PCV is one of the oldest devices in getting rid of emission pollution, which prevents it from becoming air pollution. In addition, the PCV provides assistance to your car’s motor oil. The PCV also serves the important function of preventing your car’s engine from corroding.

However, if your vehicle happens to fail the emissions test it must take an emissions repair test. If your vehicle is unable to meet the emissions standard following the necessary repair work you may be able to obtain a waiver issued by the Texas Department of Public City. A waiver can be issued if you can prove that your vehicular usage is minimal, your vehicle emission levels are low or the cost of meeting the emission standard are too high. You can even request more time to carry out the necessary repairs. Cars older than 24 years are considered antiques and are exempt from the emissions test. Stop by your local City Garage and get an emissions test today!