Rumble/vibration when doing a fast, longer turn (like an exit ramp)?

SS1LETOM · 05-03-2021, 09:39 AM

Hi all, '17 SS 1LE. All stock, 7500 miles.

I noticed the other day when going on an exit ramp harder (maybe 3rd/4th gear at 50-60 mph), that the car gave off a slight rumbling feeling. Seemed to be coming from the rear. I only notice it when I push harder on these ramps, not when just cruising on them.

Now, when I autocross the car and have say a PTM setting of Sport 1 on, I can feel a similar rumble from the rear when pushing through a turn, which I assume is the PTM doing it's job.

But that can't be what I'm feeling on the exit ramp as I am in Tour mode. I'm not pushing hard enough where the SC/TC should be kicking in, and I don't think this would be the eLSD doing it's thing? Dunno, maybe tires (stock SC3)?

Car drives great otherwise...just curious if anybody had any input on the rumble I'm feeling under those conditions.

05-03-2021, 09:39 AM	#1
SS1LETOM Drives: 17 ss 1le Join Date: May 2021 Location: Ny Posts: 5	Rumble/vibration when doing a fast, longer turn (like an exit ramp)? Hi all, '17 SS 1LE. All stock, 7500 miles. I noticed the other day when going on an exit ramp harder (maybe 3rd/4th gear at 50-60 mph), that the car gave off a slight rumbling feeling. Seemed to be coming from the rear. I only notice it when I push harder on these ramps, not when just cruising on them. Now, when I autocross the car and have say a PTM setting of Sport 1 on, I can feel a similar rumble from the rear when pushing through a turn, which I assume is the PTM doing it's job. But that can't be what I'm feeling on the exit ramp as I am in Tour mode. I'm not pushing hard enough where the SC/TC should be kicking in, and I don't think this would be the eLSD doing it's thing? Dunno, maybe tires (stock SC3)? Car drives great otherwise...just curious if anybody had any input on the rumble I'm feeling under those conditions. Last edited by SS1LETOM; 05-03-2021 at 03:50 PM.

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