Rear Tire Noise

[beauar]

I have a 2003 996 c2. I have Michelin Pilot Sport AS plus in the rear of my car. I noticed that at about 70-80mph I get a loud honing sound coming from the rear tires. It seems to go away at 80+ mph and goes away again at 60-70 mph. Very weird to me. I have no idea what this louder honing sound is. It sounds much like when you take a finger and rub it on a glass. It resonates to a loud humm. Do you think there might be something rubbing against the tire? I checked but couldn't see anything without a lift. Also it seems to only be coming from my drivers side ( left) rear tire. Any idea's to what this is would be appreciated.

Thanks,

Beau

[mp911]

I get a similar sound on a much narrower band of about 67 to 69mph. I attribute it to mostly worn out Pirelli Pzeros and was going to wait and see what it was like after new rubber. Or maybe it's just our fine Chicago area highways....

[mp911]

I get a similar sound on a much narrower band of about 67 to 69mph. I attribute it to mostly worn out Pirelli Pzeros and was going to wait and see what it was like after new rubber. Or maybe it's just our fine Chicago area highways....

[beauar]

its probably just our fine chicago highways. I dont have very many miles on my tires. maybe 5000 miles. At least 8/32 left. I just have noticed it more and more recently. Maybe its just the roads. I am hoping that is the case because I sure can't figure it out.

I get a similar sound on a much narrower band of about 67 to 69mph. I attribute it to mostly worn out Pirelli Pzeros and was going to wait and see what it was like after new rubber. Or maybe it's just our fine Chicago area highways....

[PILFILR]

How is the tire wear? Is it thin on the inside tread? Is it a little high and low from tread to tread?

[beauar]

its very even tread wear. I can't figure it out. I only notice the sounds from 76mph to 80mph. It seems to go away over 80 and under 76 or so. Very odd to me.

How is the tire wear? Is it thin on the inside tread? Is it a little high and low from tread to tread?

[70Sixter]

I've had many brands of tires get noisy with age. If they are newish I'd have the tire checked for internal damage (like from pot holes) or pending tread separation.

[bmohr]

ditto...lots of very loud noise from wearing tires. Changed them out and the cabin noise was drastically reduced. Crazy how old tires can do that, even when the tread looks fairly okay.

[beauar]

just an update from a long time ago on this issue. Turns out the tire was warped. The tire store replaced the tire. You could not see anything wrong with the tire initially until it got up to speed.

I have a 2003 996 c2. I have Michelin Pilot Sport AS plus in the rear of my car. I noticed that at about 70-80mph I get a loud honing sound coming from the rear tires. It seems to go away at 80+ mph and goes away again at 60-70 mph. Very weird to me. I have no idea what this louder honing sound is. It sounds much like when you take a finger and rub it on a glass. It resonates to a loud humm. Do you think there might be something rubbing against the tire? I checked but couldn't see anything without a lift. Also it seems to only be coming from my drivers side ( left) rear tire. Any idea's to what this is would be appreciated.

Thanks,

Beau