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Engine, Exhaust, Transmission Discuss the FR-S | 86 | BRZ engine, exhaust and drivetrain.

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Old 06-11-2015, 01:47 PM   #43
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Originally Posted by awhatzable View Post
Can you tell me where the noise is coming from and if I can reduce the noise ?
I believe it's the direct injection (not entirely sure on that though.. most cars make funky noises at very low rpms in higher gears), you can reduce it by being gentler on the gas pedal. Easing into the throttle and not asking too much of the engine at low rpm.
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Old 06-16-2015, 12:38 PM   #44
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Originally Posted by fika84 View Post
I believe it's the direct injection (not entirely sure on that though.. most cars make funky noises at very low rpms in higher gears), you can reduce it by being gentler on the gas pedal. Easing into the throttle and not asking too much of the engine at low rpm.
Hey sorry to bother you again, but can you listen to the sound in the video at 00:03-00:04?
[ame="https://www.youtube.com/watch?v=xUGoW08Xd6o"]Knocking Sound near rear of FR-S - YouTube[/ame]

I just to make sure we're thinking of the same sound. BTW this is not my video but it contains the exact sound I'm on about.
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Old 06-16-2015, 01:05 PM   #45
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Hey sorry to bother you again, but can you listen to the sound in the video at 00:03-00:04?


I just to make sure we're thinking of the same sound. BTW this is not my video but it contains the exact sound I'm on about.
Not at all what I was talking about... I have never heard that tapping sound before.. but it sounds like the exhaust is tapping something.

I'm talking about the diesel sound that you hear when your at low rpms in a gear.
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Old 06-16-2015, 01:22 PM   #46
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Not at all what I was talking about... I have never heard that tapping sound before.. but it sounds like the exhaust is tapping something.

I'm talking about the diesel sound that you hear when your at low rpms in a gear.
Im talking about the sound at 3-4 seconds of the video. Is that the diesel sound ? You can hear some grumble rattling sound, I think you need to turn the volume up or use earphones to hear it clearly. The rest of the video is not part of it.
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Old 06-16-2015, 01:26 PM   #47
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Im talking about the the sound at 3-4 seconds of the video. Is that the diesel sound ? I think you need to turn the volume up or use earphones to hear it clearly. The rest of the video is not part of it.
Yup, that's the sound. Not something you need to worry about. Other people have claimed that it's just valve train noise that you don't hear at higher RPM's or under different load scenarios.
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Old 06-16-2015, 01:27 PM   #48
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Yup, that's the sound. Not something you need to worry about. Other people have claimed that it's just valve train noise that you don't hear at higher RPM's or under different load scenarios.
Thank you
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