In article .com>,
says...
>
>
>I have a 1997 Chrysler Sebring with 120,000 miles. The car is my
>daughter's and I just started to drive it. I noticed when I am on a
>highway going greater than 45 mph, that when I step on the gas pedal I
>hear a high pitched squeeling sound. The sound stops when I take my
>foot of the gas pedal and gets louder the more I step on the pedal.
>
>Any ideas?

Does this car have a turbo motor? If yes, it is probably just the turbo.
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Alex