An internal combustion engine generates loud noises while in operation. The exhaust muffler acts as a silencer and minimizes the noise emitted by the engine. However, a faulty or clogged muffler fails to do its job and can adversely affect the engine operation in your Audi A4. So, check if your car’s muffler is in good shape or not and if necessary replace it.

3. Have you ever wondered;
what's a muffler & what does it
do?

4. Well, it’s a part of your car’s
exhaust system responsible for
reducing the amplitude of
engine noise.

5. If it fails, your Audi A4 exhaust
will make a high-pitched sound.

6. Besides, it can adversely affect
the engine operation in your car.

8. Some of the most common
reasons behind muffler failure
in a car are as follows;
• Exposure to road salt
• Deposition of mud and other contaminants
• The impact from a speed bump or similar
obstacle

10. Loud Exhaust Noise

11. It is one of the most obvious
signs of a failing exhaust muffler.

12. The sole purpose of an exhaust
muffler is to dampen the engine
noise.

13. However, a clogged or broken
exhaust muffler fails to do so.

14. As a result of this, your car’s
exhaust might make loud scary
noises.

15. Besides, a cracked or leaking
exhaust manifold occasionally
makes hissing and tapping
sound.

16. Poor Engine Performance

17. A clogged or bad exhaust
muffler can suffocate the
engine.

18. It makes your Audi A4 engine
run sluggish.

19. Consider installing a new
muffler for optimal engine
performance.

20. Engine Misfire

21. It is another noticeable
symptom of a bad or clogged
exhaust muffler.

22. A defective exhaust muffler can
cause engine misfire in your
Audi A4.

23. It happens due to the pressure
difference between the intake
and exhaust manifold.

24. Keep the muffler clean for a
smooth flow of exhaust gases.

25. Gas Mileage Plummets

26. A recognizable depletion in gas
mileage is another feasible sign
of a bad exhaust muffler.

27. Rise in back pressure within the
engine tricks the ECU to inject
more fuel into the cylinders.

28. In the wake of that, you would
notice an increase in the rate of
fuel consumption.

30. A broken or clogged exhaust
manifold fails to dampen engine
noise.

31. As a result of this, you would
hear loud engine/exhaust noise
in your Audi A4.

32. Sluggish engine operation is
another characteristic of a
broken muffler.

33. So, if you are noticing signs of
exhaust muffler failure in your
Audi A4, get it replaced.

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