2003 Cadillac Escalade EXT whine

Tiny
BELLEZZA206
  • MEMBER
  • 2003 CADILLAC ESCALADE EXT
  • V8
  • FWD
  • AUTOMATIC
  • 70,500 MILES
The truck whines when I accellarate and when I hit the brakes
Wednesday, April 15th, 2009 AT 6:38 AM

1 Reply

Tiny
FACTORYJACK
  • MECHANIC
  • 4,159 POSTS
Does the whine occur when you are stationary? Bring the speed up, and press the brake hard. It is a hydro-boost type brake booster that relies on P/S pump pressure. If your fluid is low, or pump is becoming faulty, a whine could occur. If it is accelerating/decelerating whine, that only occurs with vehicle speed, you could have some scored front differential side bearings as well.
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Thursday, April 16th, 2009 AT 10:06 PM

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