help: front end rotating metal squeal at freeway speeds

[louijas]

Hi everyone,

I have a 996 tip which had front end repaired damage about 5 years ago. Another car simply changed lanes into my car, and physically rolled over my frotn quarter panel, disabling my car. I had almost everything under the passenger front quarter panel replaced. They changed the wheel, suspension, radiator and steering rack. Visually, the front frame was ok, but I'm sure the mechanical guys had to check it.

For sometime I've noticed a squealing sound coming from my car but it has been hard to diagnose.

• The sound is like a dry rotational bearing.
• The sound is faintly noticeable when the windows are rolled up.
• I can hear it clearly when i roll the driver window down and drive against the median or near a sound barrier.
• Sound appears from the front driver side.
• Sound appears above 60 mph, and reduces in oscillation till it cuts out when you slow to 35mph.

My question is what rotating mass could be causing this problem. My tech does not think it is the wheel bearing. I've had both fender liners replaced as there was some cracking.

What are some of your thoughts? Also, should the wheel bearing be changed as a precaution?

[louijas]

I should also note the car is a 2002, with 28K on the odometer (total garage queen).

My tech told me it was time to change out the rubber, which may not eliminate the problem, but certainly couldn't hurt as the PZero Rosso were getting bald. After changing the tires, the problem went away for the first 500 miles. I was driving it last night ,and it came back. Now the chirping starts at 85+. I don't know. What can be checked on the front end?