Brand New ST makes a droning noise 50-58ishmph

[MrBigglesworrth]

Basically, the title. Car drives great, very smooth. Shifts are smooth. But when I’m going 50-58ish there is a noticeable oscillating droning sound. Has anyone else had this experience? And if so, how do I fix it?

 

[Stinger]

Basically, the title. Car drives great, very smooth. Shifts are smooth. But when I’m going 50-58ish there is a noticeable oscillating droning sound. Has anyone else had this experience? And if so, how do I fix it?

Exhaust leak?


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[MrBigglesworrth]

Exhaust leak?


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I don’t know. Is there a way for me to test that or do I have to take it in? Can I do the old soap trick on a cold exhaust?

 

[ZRX61]

Basically, the title. Car drives great, very smooth. Shifts are smooth. But when I’m going 50-58ish there is a noticeable oscillating droning sound. Has anyone else had this experience? And if so, how do I fix it?

Something is setting up a resonance that it shouldn't. My Kaw 1100 does this when I ride close to another Kaw 1100 with the same Muzzy exhaust system. I've also experienced a really bad version of this when following a Porsche through a canyon that actually made me feel nauseous if I was within 50ft of the car. Experimented a bit with the distance between me & the car. When I dropped back the feeling went away. Thought I was actually going to throw up a couple of times, most unpleasant...
I'd start by looking under the ST & checking the exhaust mounts & joints etc. Something might need tightening up... or possibly loosening off a bit.

 

[MrBigglesworrth]

Something is setting up a resonance that it shouldn't. My Kaw 1100 does this when I ride close to another Kaw 1100 with the same Muzzy exhaust system. I've also experienced a really bad version of this when following a Porsche through a canyon that actually made me feel nauseous if I was within 50ft of the car. Experimented a bit with the distance between me & the car. When I dropped back the feeling went away. Thought I was actually going to throw up a couple of times, most unpleasant...
I'd start by looking under the ST & checking the exhaust mounts & joints etc. Something might need tightening up... or possibly loosening off a bit.

thanks for the reply. I plan to get under it Sunday. I’ll report back if I find anything. One thing to note: I have put the vehicle in neutral at speed and it still happens. I did that to cancel out possible drive train issues. Im guessing it could still be exhaust related. But thought I should point that out.

 

[Dennis]

Mine did similar and it ended up being a loose cover on the underside of the car. It was missing a bolt and hanging down a bit on the passenger side...

Dennis.


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[MrBigglesworrth]

Mine did similar and it ended up being a loose cover on the underside of the car. It was missing a bolt and hanging down a bit on the passenger side...

Dennis.


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Awesome! Thank you so much for the reply. I’ve got some ramps coming Thursday so I’ll get under and check it then. I’ll report back what I find.