In a vehicle, exhaust pipes are crucial as they connect the components of the exhaust system, the exhaust manifold, catalytic converter, and muffler, to one another. Their main function is routing harmful exhaust gases away from the engine. Over time, the water vapour in exhaust gas degrades and rusts the exhaust system and therefore the pipes need replacement.
Structure of an Exhaust System
In order to be able to repair a vehicle's exhaust system, it is worth knowing about its different parts as well as how they connect to one another. The first exhaust pipe from the exhaust manifold to the catalytic converter is the shortest and transports the gases in their current state into the converter where the after-burning process occurs. The temperature and toxicity of the gases decreases and then they pass through the next exhaust pipe between the mufflers and tailpipe. The gases move away from the passenger salon and towards the back of the vehicle for expelling.
Getting Ready for Replacing Exhaust Pipes
Before replacing an exhaust pipe, it is necessary to lift the vehicle up in order to access its underside and the exhaust system. A jack and jack stands can hold the car in the right position. Bolt-on components are better than welded-in components because they adhere more closely to factory specifications. Welded-in parts are typically generic and one size fits many vehicles, but they could be less efficient in operation. It is generally better to opt for a specific part for the vehicle. In terms of choosing the material, stainless steel pipes do not rust as easily as other metal pipes.
The Process of Replacing Exhaust Pipes
After lifting the vehicle, it is time to start with inspecting the exhaust system and looking for damaged parts. Removing the system from the car starts from the rear. You can use a socket wrench or screwdriver to loosen the bolts that hold the parts in their places. The next step is removing the oxygen sensors from the exhaust system. Remember to keep the oxygen sensors in a safe place in order to avoid contamination. It is best to cover their tips. Next comes disconnecting the components from the hangers supporting them and discarding all old gaskets, the rings that make the connections airtight and safe. When installing new components, you should also include new gaskets. To put the system back together, start near the engine and go outward towards the exhaust tip.
Ensuring Replacement Success
Once you have the new exhaust pipes, gaskets, and the entire system in place, you can lower the car from the jack stands. The first drive should be a careful and slow test drive that allows you to verify the repair work and ensure all the systems are working.