in my 89 gt-s, when it first starts up the power steering will squeal alot very loudly and be very hard to turn unless i rev it up a little but it still squeals but is "easier" to turn, it will be like this for about 5-10 minutes into driving then it stops being hard to turn but squeals a little when i turn sharp.... what do i need to replace for this to stop? yes i have fluid, and 10 miles of driving it will be normal unless i shut the car off for a while :?: :?: :?: