The power steering rack on my LHS makes a whining sound when turning. This only happens when the outside temperature is over 70 degrees and the car is at operation temporature. The rack was replaced about 3 years ago and started making the noise about a year after it was installed. At that time I had the system flushed to replace the ATF3 fluid with ATF4 fluid to try and stop the noise at which time they discovered the filter in the reservoir bottle was all but clogged so they replaced the bottle. Any recommendations on what I can try other than living with it or replacing the power steering rack again?
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