Thread: BRZ AC Rattle?
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Old 03-13-2018, 09:19 AM   #11
Teseo
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Quote:
Originally Posted by Ultramaroon View Post
It's just the gearbox. All the gears rotate whenever the input shaft spins. When the engine spins slowly, the firing pulses cause the gears to rattle a little.

The AC increases the load on the engine at idle so you get more of the rattle.

Normal.
And when you press the clutch all the way down the noise disappears?
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