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Message started by 2009S40 on 07/14/22 at 20:25:06

Title: Weird noise
Post by 2009S40 on 07/14/22 at 20:25:06

I have a 2009 S40 with 10,000 + miles. On a ride the other day I felt a sudden vibration on my right peg with a scraping sound. Lasted about 10 seconds. Then it vanished?

Title: Re: Weird noise
Post by verslagen1 on 07/14/22 at 22:29:10

Normally, vibrations on the footpeg would indicate loose engine bolts.
But this came and went with a scraping noise.

Left side? Right side? At what speed? In what gear? Speeding up? Slowing down? How's that molar?

Title: Re: Weird noise
Post by buster6315 on 07/14/22 at 23:13:54

Were you accelerating or cruising or de-accelerating, leaning into a corner etc? (I saw the right peg) Probably wait til it happens again and make a further description.

Title: Re: Weird noise
Post by Serowbot on 07/15/22 at 06:07:21

Nothing comes to mind,... you're probably gonna' have to wait and see if it happens again.

Title: Re: Weird noise
Post by Tocsik on 07/15/22 at 07:58:28

Maybe just hit the perfect resonant harmonic of moving parts and speed? Seems like your mileage is too low for a cam chain adjuster issue, but you did say right side.

Title: Re: Weird noise
Post by 2009S40 on 07/15/22 at 11:42:04

I had come off a 20 mile highway ride was in a 45 mph zone and twisted off the throttle to ride past a utility truck beside the road. I may have just downshifted into 3rd.

Title: Re: Weird noise
Post by twhitus on 07/15/22 at 12:50:54

6B6969600A6D69590 wrote:

I had come off a 20 mile highway ride was in a 45 mph zone and twisted off the throttle to ride past a utility truck beside the road. I may have just downshifted into 3rd.

45mph zone but how fast were you going in 3rd? if im in 3rd and giving it the beans i get a harmonic sort of vibration in the foot pegs, kind of my queue that i will need to shift at some point.

Title: Re: Weird noise
Post by 2009S40 on 07/15/22 at 15:57:07

41425D5C414046350 wrote:

[quote author=6B6969600A6D69590 link=1657855507/0#5 date=1657910524]I had come off a 20 mile highway ride was in a 45 mph zone and twisted off the throttle to ride past a utility truck beside the road. I may have just downshifted into 3rd.

45mph zone but how fast were you going in 3rd? if im in 3rd and giving it the beans i get a harmonic sort of vibration in the foot pegs, kind of my queue that i will need to shift at some point.
[/quote]
Well good point. I probably downshifted to 3rd at the same time I got off the throttle. I am guessing I was somewhere around 35ish when it happened.
Next ride If it happens again I will be more aware. I will be tuned in for the next few rides, and hope it doesn't become a regular thing. It was ugly.

Title: Re: Weird noise
Post by 2009S40 on 07/17/22 at 15:02:52

696B6B62086F6B5B0 wrote:

I have a 2009 S40 with 10,000 + miles. On a ride the other day I felt a sudden vibration on my right peg with a scraping sound. Lasted about 10 seconds. Then it vanished?

Rode a 40 mile highway loop this morning, didn't notice any vibration. Hopefully just a 1 time wonder. :)