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Audi 80 Muffler

Symptoms of an Ailing Audi 80 Muffler

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.

Loud exhaust

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.

Undersized mufflers

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.

Clogged mufflers

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.

Exhaust restriction

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.

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  • Tips to Ensure the Long Service of Your Audi 80 Muffler 04 March 2014

    To ensure that your Audi 80 muffler gives you the best and longest trouble-free service for many miles to come, the following preventive maintenance recommendations should be conducted during normally scheduled vehicle maintenance.

    • Do not use fuels blended with lube oil or additives.
    • The use of oil-blended fuels may cause the appearance of deposits in the filter that increase backpressure and reduce engine performance. Also, the use of an unapproved additive may result in denial of warranty coverage.
    • Do not modify engines.
    • Electronically controlled engines are certified with a particular fuel and electronic program based on a specific engine configuration and model year. Use only the fuel and electronic program specified for your engine. Using the incorrect fuel and/or electronic program may cause excessive soot generation and diesel particulate filter (DPF) plugging and may result in denial of warranty coverage.
    • Perform filter cleaning on your muffler as you see fit.
    • The filtering device is located in the center of the muffler in an exhaust system. The filter device is easily detachable so that exhaust maintenance is simplified and maintenance cost is reduced. Filter plugging is uncommon but it can occur through excess soot loading due to insufficient temperature settings, engine maintenance issues, or engine component failures. Although the muffler does not typically require or need routine ash cleaning service during its life, you may opt to perform filter cleaning on it as you see fit.
    • Prevent the buildup of carbon in your muffler.
    • Carbon buildup reduces the diameter of the outlet holes for the muffler, which increases the backpressure to the engine and consequently reduces its capability to generate power. To remedy this, you should take your muffler apart at frequent intervals and clean the carbon buildup. The frequency of the cleaning requirement will vary with the oil you are using and how often you operate your engine. Determine your engine cleaning schedule and stick with it.
    Other remindersThere is no set-in-stone timeframe as to when your muffler will require this maintenance procedure to be done. However, there is no harm in inspecting your muffler; in fact, if you have a question as to the status of your muffler, a quick inspection would be a good idea.