![]() ![]() If you can’t access the manifold, you’ll need to remove the car’s hood. The first step in identifying a rattling exhaust pipe is to inspect the exhaust manifold. In this case, the rattling noise will be more obvious if you’re driving a rusted vehicle. Other problems may be due to a corroded pipe section. If you have a rattling noise that is more annoying than irritating, you may need to have your catalytic converter replaced. If you hear the sound, you are most likely experiencing a faulty catalytic converter. The most obvious problem resulting in a rattling sound underneath your car is the exhaust system. If the traces of the metal are obvious, the exhaust leak is likely caused by the manifold. Also check for black spots or missing metal. Check for signs of a leak, including a smell of exhaust coming from the cabin or near the engine. The exhaust system is responsible for keeping the car’s occupants from breathing in exhaust fumes. When checking for an exhaust leak, make sure you can access the engine and the underbody. READ ALSO : Will STP Quiet a Noisy Engine? If you notice black soot around the manifold, it’s likely your car is suffering from a leak. You can use a torque wrench to test for tightness. If you notice cracks or loose bolts, the exhaust manifold may be leaking. Look for black soot around the manifold and the downpipe connection. You should start your inspection while the engine is cool. The first step to diagnosing an exhaust leak is visual inspection of the engine bay. If the smell is strong enough, you should take your car to a mechanic right away. If you notice any of these signs, it is time to investigate. This smell is usually accompanied by some smoke. A failure will also produce a burning odor in the engine compartment. The first signs that your exhaust manifold gasket has failed are usually the following: excessive noise and engine sputtering. Before you begin, make sure that you raise your car enough to reach the exhaust manifold gasket. You can find these tools at Lowe’s and Home Depot. Small scrapers are best because they fit tighter areas. You will also need a scraper to remove the old gasket. You will need some tools like deep sockets and wrenches. The repair of a failed exhaust manifold gasket is a relatively easy process. If you have questions or comments, call them at 50 or email them at, you can also visit our website at a failed exhaust manifold gasket Steve and Karen Johnston are owners of All About Automotive, providing auto repair and auto maintenance in Historic Downtown Gresham. Keep that exhaust system in proper repair for your health, the health of your family and the health of the environment. The most harmful gases from exhaust are the ones that you cannot smell like carbon monoxide, so that routine inspection of your exhaust system is very important. Whenever you are advised of an exhaust repair that is needed, we highly recommend having that repair performed. If you are experiencing any of these symptoms, we recommend having that exhaust system checked out. Some of the symptoms to look and listen for are: increased exhaust or engine sounds louder while running the vehicle, popping or ticking noises especially when cold, gas or rotten egg smells inside the cabin of the vehicle, sometimes a lack of power or backfiring while accelerating. Your trusted repair facility should be looking for worn, rusted or deteriorating exhaust pipes, mufflers and catalytic converters. Routine inspections of the exhaust system is recommended. ![]() The catalytic converter helps to turn these gases into mostly harmless fumes, that do much less damage to the environment. Having them properly exiting the vehicle through the exhaust, via the exhaust manifold, exhaust pipe, catalytic converter, muffler and tailpipe gets them away from the cabin of the vehicle. These poisonous gases can be hazardous if they leak into the cabin of the vehicle. The exhaust gases of a vehicle are made up of: Hydrocarbons (unburned fuel), Carbon Dioxide, Sulfur Dioxide, Carbon Monoxide, Nitrogen Oxides, Phosphorus, Lead and other metals. It is important to keep a close eye on your exhaust system and to have it fixed if a leak is detected. The exhaust system is used to expel those gases from the car, and to control the emissions that come out of the vehicle, the exhaust system also deadens the sound that is made by the internal combustion of the engine. Vehicles create harmful gases during the combustion of fuel that happens when the engine is running. The exhaust system of your vehicle plays an important part in the proper operation of the vehicle. ![]()
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