exhaust noise

1993 HONDA CIVIC
125 MILES • 1.5L • 4 CYL • 2WD • MANUAL
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REAGAN SMITH
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My car has a hks muffler (aftermarket) and usually has a nice deep tone, and rather loud. however, after not driving the car for two days, upon driving it again i noticed the exhaust was much more quiet and did not have that deep tone that it had before (basically noticeably much more quiet than before). i do not have poor MPG, or any acceleration/power problems so i am unsure of why this has happened.
Sep 6, 2017 at 3:09 AM
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MHPAUTOS
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A baffle in the muffler may have dislodged, often if you give the muffler a sharp thump with the palm of your hand, (cold exhaust) you may hear it vibrate or knock internally.
Sep 6, 2017 at 3:46 AM
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REAGAN SMITH
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i have tried this, no vibrations or knocks.
Sep 6, 2017 at 2:53 PM
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STRAILER
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Sometimes you cannot hear the baffle being loose. I would take it to a muffler shop and let them look at it. It sounds like the muffler is bad.

Please let us know what you find.

Cheers, Ken
Sep 7, 2017 at 10:49 AM