Grinding noise under the hood..

[Akcalvinkid]

So there's been this noise under my hood and it's annoying me.. I'm not sure what it is, I thought it was the coupler, so I replaced it, didnt do anything.. Then thought it was the alternator, so I replaced it, still didnt do anything..

here is a video of the noise..



Grinding noise - YouTube

 

[FordMan77]

Could be the A/C compressor. Maybe try removing the belts and start it up breifly. If the noise is gone then you know its one of the pulleys.

 

[Akcalvinkid]

Is it okay to start the car with both belts off? It won't hurt the car?

 

[NegativeOne13]

You can first remove the S/C belt. See if the noise goes away, if not remove the other one. Like previously stated do it for a very short time. If your problem still exists you have bigger issues.

 

[Fivefingerdeathpunch]

If the car is cold, you can run the car for many minutes without the water pump running as it will take a little bit for it to heat up.