davemarco
Senior Member
- Joined
- Jun 3, 2017
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- SoCal
- Vehicle(s)
- 2019 Civic Type R (CBP), 2013 Audi TTRS
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- #1
Hi all. My hunt is finally down to the last rattle, and it's a doozy. I have noticed that there is a buzzing noise coming from my engine bay that only occurs under throttle. If I lift off the throttle, it almost immediately goes away. If I am at high RPM and press on the throttle, the sound gets louder. Likewise, I can be at high RPM (5-6K) and let off the throttle, and the sound completely goes away.
After chasing other rattles in the dash and pillars, I am confident that this is coming from deeper in. It sound like it's coming from the engine bay. My question is, what could be buzzing in such a way that it only happens under throttle?
Civic family, help me get this last one!
EDIT: if there were something related to the exhaust or the engine mounts, such as a loose heat shield, I would imagine that I would hear the buzzing at certain RPM's independent of throttle application. Wouldn't the fact that it comes and goes with throttle application, and gets worse at higher RPM's, implicate the intake in some capacity? Not sure how to prove this though.
After chasing other rattles in the dash and pillars, I am confident that this is coming from deeper in. It sound like it's coming from the engine bay. My question is, what could be buzzing in such a way that it only happens under throttle?
Civic family, help me get this last one!
EDIT: if there were something related to the exhaust or the engine mounts, such as a loose heat shield, I would imagine that I would hear the buzzing at certain RPM's independent of throttle application. Wouldn't the fact that it comes and goes with throttle application, and gets worse at higher RPM's, implicate the intake in some capacity? Not sure how to prove this though.
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