FC1Dawn
Senior Member
- Joined
- Feb 14, 2018
- Threads
- 7
- Messages
- 218
- Reaction score
- 247
- Location
- California
- Vehicle(s)
- 2018 Civic Si Sedan
- Thread starter
- #16
Think I found the source. In a Subaru WRX forum, someone posted the exact same issue that I have. Cruising, no whistle. Once under boost, whistle.
Some comments pointed out that the sound was coming from the throttle body clamps / coupler.
I checked mine out, turns out the throttle body T-Bolt clamp is 3/4 the way on. From the top, it looks even. But once I felt around it, I found out that at the bottom, there is maybe like 1/4 of the clamp hanging off of the coupler.
Hoping this solves the whistling issue. It's gunna be a pain to get that thing back in the correct position as the provided clamp is extremely difficult to get on and off. Worst case scenario, I'll need to get a slighty larger T-Bolt clamp.
Some comments pointed out that the sound was coming from the throttle body clamps / coupler.
I checked mine out, turns out the throttle body T-Bolt clamp is 3/4 the way on. From the top, it looks even. But once I felt around it, I found out that at the bottom, there is maybe like 1/4 of the clamp hanging off of the coupler.
Hoping this solves the whistling issue. It's gunna be a pain to get that thing back in the correct position as the provided clamp is extremely difficult to get on and off. Worst case scenario, I'll need to get a slighty larger T-Bolt clamp.
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