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Bass Noise inside Cabin on idle in drive?

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Old 07-01-14, 08:44 AM   #1
340massive
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Exclamation Bass Noise inside Cabin on idle in drive?

Why is it my 94 LS400 has a Bass Noise inside Cabin on idle when in drive?
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Old 07-01-14, 09:57 AM   #2
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Same thing here, it's kind of like a slow wawawawawa. If you put the car in neutral the sound goes away. Do you have a low idle issue? 3-400 rpm?
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Old 07-02-14, 04:53 AM   #3
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Motor/transmission mounts.
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Old 07-02-14, 11:28 AM   #4
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it's just the exhaust resonating within the cabin at a certain RPM. open a window and the sound should go away. most likely your mufflers are not muffling as well as they once did.
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