Christensen Automotive | Gardnerville 775.782.2605 , Carson City 775.882.8888, Reno 775.322.8100, South Lake Tahoe 530.544.9940, Fallon 775-423-5455

Clearing the Air – Vehicle Emission System

Taking good care of your exhaust and emission system is not only good for the environment but for your car’s and your own well-being. Many new vehicles are coming equipped with a host of sensors and regulators to measure the emissions your vehicle puts into the atmosphere. The emission system monitors the exhaust using an array of sensors and computerized engine controls to substantially reduce harmful gases such as carbon monoxide, unburned hydrocarbons and oxides of nitrogen, and prevents harmful fuel vapors from escaping at the fuel tank. Other functions include routing dangerous exhaust gas away from the car and help to reduce engine noise. The catalytic converter is also part of the emissions system as it reduces the level of harmful pollutants in the exhaust. Oxygen sensors mounted in the exhaust system monitor the level of oxygen in the exhaust gases to maintain efficient engine operation and monitor the converter’s operation. The Emission system is subject to typical wear and tear due to driving and atmospheric conditions, mileage and vehicle age, type of spark plug, maintenance history, bad fuel, poor spark and/or damaged or worn sensors. The system should be inspected for leaks, damage and broken supports or hangers if there is an unusual noise, or when rattling is starting. Leaks can be extremely dangerous as it can allow carbon monoxide into the passenger compartment. Often mufflers and other exhaust systems components are replaced together as they will generally wear at the same rate or because sections are welded together. Another clue you may need your emission system inspected is if the exhaust has an acrid smell almost...