From Exhaust Gas Recirculation (EGR) Valves to O2 Sensors, your exhaust system has a critically important job to do to keep your car operating efficiently. Your vehicles exhaust system is engineered to withstand extreme conditions, including high exhaust temperatures, corrosive gasses, road salt (where applicable) and water. The vehicle’s exhaust system performs three important functions. It directs exhaust gases from the engine to the rear of the vehicle, it treats the exhaust gases to reduce emissions and it reduces noise produced by the engine’s combustion process.
Key components of the exhaust system include:
Malfunctions can be caused by environmental damage, or even problems with the ignition or fuel systems. Catalytic converters can be damaged if the check engine light is flashing and the vehicle continues to be driven. The exhaust system can be damaged from running over objects, and can deteriorate when exposed to corrosive road salt and moisture. Corrosion leads to exhaust leaks, noise, or objectionable odors and can cause illumination of the check engine light. Visit your local ACDelco service center for expert service and quality parts. Check out this video for more!
When you take a corner in your car, the outside wheels have a slightly longer distance to go than the inside wheels. That means the outside wheels have to turn a bit faster than the inside ones, and the piece of mechanical wizardry that makes this possible is called the differential. The differential allows the drive wheels to rotate at different speeds and turns without the wheel binding or hopping. If you have a rear-wheel drive vehicle, the differential is on the rear axle.
I’m often asked questions about the cooling system, the system that cools your engine and keeps it at the proper operating temperature. I like to divide the topic into two areas. First, the coolant itself, and second, the parts that make up the cooling system. The coolant is the mix of water and antifreeze that circulates through the engine to draw off heat.