Under the hood in the aux relay box number 1, it will be marked C1008 and its the larger of the two relays on the left side of the box........
quite possibly the A/C compressor clutch. The whining should decrease when the A/C is turned off. You will still hear some of the noise due to the clutch turning while the engine is on.
The clutch is mounted on the front of the A/C compressor.
4x4 Shift motor & clutch (30A)
The clutch bearing for an AC compressor is located in the center of the clutch. If the bearing goes bad, then the clutch is replaced as a whole part rather than changing the bearing.
The air conditioning compressor clutch relay is located on the bottom of the air conditioner compressor. The relay switch will be labeled.
At the front of the AC compressor....
The clutch has a bolt or nut in the center, connecting it to the compressor. After the nut is removed, the clutch can be removed by use of a gear puller.
If the clutch disengages properly then the compressor should not be running. Most likely the clutch itself is bad instead of the compressor.
The AC clutch is on the front of the compressor where the belt rides. When power is applied to the clutch it engages to turn the compressor. It is basically a magnet a/c compressor clutch is the ound thing on the front of the compressor with pulley wheel attached. this clutch is an electro magnetic clutch that when electricity is supplied, engages so as the a/c compressor is driven ,which can then pump freon thru the ac system
The ac compressor clutch is mounted on the front of the compressor and is a replaceable part. However depending on the complexity of the clutch change out it may be overall better to change the compressor and clutch together.
The torque converter is located between the engine and transmission. The clutch packs are inside the transmission. This car has no mechanical clutch as it is an automatic. There is also a clutch mounted on the front of the A/C compressor.
AC clutch relay is inside the fuse case within the engine compartment.