2008 Chevrolet Impala.
Question = Well.. Say I want to pass someone. I get into it, RPMs go up. And I
hold it there for a minute. After i park it and let the car idle, I hear a, like a whine, or "power steering" whine, but its not the P.S. It won't do it when you turn. After letting sit and idle, if you rev a little, the engine whines, and gets louder. Any suggestions why my Impala is doing this? Thanks!
Be sure to check the trans. fluid level. Low fluid can give a whine noise that is related to engine speed. You may need to remove the serpentine belt after you get the noise to start. Then re-start the engine and see if it goes away.
That would indicate one of the accessories on the drive belt is the culprit. If it does go away, then re-install belt. While it is whining, you can use a stethoscope to try to isolate what is making the noise-Alternator, water pump, A/C compressor.
What Causes Noise in Front of Car
CHEVY HHR, COBALT, PONTIAC G6 AND OTHER MODELS all have the same conditions of noise under the car. From creaking to rattles or squeaking.
2008 Chevy Impala Whine Noise In Steering