4

By watching the video I've taken, can you tell what component is causing this grinding noise? Someone suggested it might be the harmonic stabilizer.

Known issues

  • Discovered low power steering reservoir, haven't noticed level go down since filling
  • Power steering fluid found under car
  • Recharged AC after the winter, isn't as cold as it used to be
  • Increasing RPM will increase pitch of grinding noise
  • The ticking noise is probably a timing chain tensor I have to replace.

Tested good

  • Turning wheel, to test power steering, doesn't change the sound
  • Not over heating, indicating good water pump?
  • Car voltage tested good, indicating good alternator and battery

Pulley diagram

enter image description here

12345678910111213
  • 143
  • 1
  • 4

1 Answers1

1

If you don't have a stethoscope or a screw driver or similar that you can use as one. Pull the belt off, put some tension on one pulley at a time and spin them by hand any roughness indicates bearing/bushing failure.

You can probably rule out the compressor pulley as the noise doesn't change as the clutch engages. Idler pulleys are the most likely to fail first. A water pump has a deeper sound when they go bad and usually leak. It doesn't really sound like a harmonic balancer either, usually when they go bad the rubber will separate and cause a screeching sound.

It will probably end up being the alternator or idler pulley.

Ben
  • 10,686
  • 4
  • 23
  • 54