The muffler can become rusty and may start to malfunction over time. With the right information at your fingertips, you may be able to diagnose muffler trouble before you take your vehicle to a mechanic. The information you learn online about your muffler problem and the trial-and-error techniques you do to locate the glitch can save you money at the auto repair shop. You'll be a confident, informed consumer, and your mechanic can use your research as a starting point for fixing your car. What's more, if the problem is fairly simple, you may be able to solve it on your own. Your Audi 80 muffler problems can present safety issues if not correctly diagnosed. So, before it's too late, read up to find out the probable source of troubles.
Leaks in the muffler or exhaust pipe could result in engine noise escaping out of the exhaust system before the muffler has had a chance to do its job of silencing the engine noise. The fact that your engine sounds louder when you accelerate implies that not only does your car have a noise leak, but it can also have an exhaust leak, which could lead to elevated levels of carbon monoxide inside your vehicle. Once you experience this particular symptom, you should get your exhaust system checked immediately.
Mufflers that are undersized or have become clogged can cause slow system response or, in the case of poppet valves, system malfunction of valve oscillation. Try removing the muffler and cycling the valve many times to see if it operates satisfactorily without the muffler. If it does, the muffler should be replaced with a larger one that has an adequate exhaust flow capacity.
You may notice loss of engine power if the muffler is clogged; on the other hand, hissing, popping, or other loud abnormal noises coming from your vehicle while driving indicates the presence of a hole in the muffler. Replace the muffler as soon as possible to avoid further complications to your vehicle and to prevent accidents from occurring.
Check for exhaust restriction, which can be caused by crushed or damaged pipes or most commonly a plugged catalytic converter, if you experience loss of power or poor fuel economy. The engine's intake manifold vacuum should be 18 inches while idle. If it less than 18, that means there is exhaust restriction. You should get your muffler checked for internal corrosion even if it seems to be in good condition.