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A bad compressor belt can cause a whistling noise while running the air conditioner. A bad engine can also cause this noise.
You need to check the exhaust at first. Then Check the heat shield, U-joints, transmission mounts, transfer case fluid and condition. Check to see if the noise happens in first and second on the manual range and if forward changes it. If you are experiencing this problem with a/c on, then the problem is the compressor itself. This condition may be caused by liquid slugging of the A/C compressor. This condition may cause an internal failure in the A/C compressor. The serpentine belt tensioner and serpentine belt may also be damaged. Replace them soon.
The most common cause of noise in your AM radio is a loose or corroded ground wire. Clean and tighten the ground wire and the AM noise should disappear.
check a/c compressor and belt.
Check the Cats have not disintegrated.
The A/C system compressor operates when in the defrost mode. If the noise is also heard when running the A?C it is more than likely a problem with the compressor/pulley.
Yes, if the compressor's bearings are bad, usually accompanied by a roaring or squealing noise coming from the compressor's pulley.
Its the compressor starting to seize up. You will need a new soon and they are expensive your looking around $1300.
On the air condition COMPRESSOR is an electric CLUTCH that may be making contact and noise while the a/c is off and the engine is running...when the a/c is turned on the CLUTCH engages, and the noise goes away.....good luck:)
Most likely the compressor. It could also be the valve in the system too, when refrigerant gets low. What sort of noise is it???
Bearing in: Alternator? Water pump? A/C Compressor? Belt tensioner?
If you want to remove the Ac compressor completly, you can pick up a bypass pully and bracket at Murray's or Pepboys for around 25 bucks. It just bolts implace of the compressor and reuses the stock belt. You might have a worn bearing on the compressor shaft which could cause the grinding noise. Make sure that it's the AC compressor that is grinding, they can be quite costly. Hope this helps.