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BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST > Technical Forums > N20, N26, B46, B48 Turbo Engine / Drivetrain / Exhaust Modifications > Knocking sound
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      01-09-2024, 04:36 PM   #1
SleeperBMW69
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Knocking sound

I noticed awhile back that I'm getting a slight knocking sound from.the rea at idle. It's not consistent it comes and goes. I.was curious if it could be because I have the valve open on the exhaust. I didn't know if anyone else has heard this.
Appreciate 0
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