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no it could be air condition clutch thatengage/disengage the air condition compressor and disengage it through the pulley or could be the pulley bearings one of them . also check the solenoid that controls that clutch . have a good luck sir .
this first to do is check wiring to compressor clutch,when ac is not working check the ac clutch it should be engaged,test for power and ground at ac compressor clutch, you may have a bad wire to clutch or a bad compressor clutch,
You should verify that your AC system still has a full charge of refridgerant, and if it does,
The problem is most likely the AC clutch assembly on the front of the compressor.
Since the dash light works, and the fan turns on, there is power to the system, but the compressor won't turn on if the pressure switch says the charge is low, and if you turn the switch, and someone can hear a click of the compressor clutch solenoid, but no air, the clutch assembly is probably the culprit
The air gap may be too wide between the clutch disc and plate. It usually happens from wear. You can test this possibility by engaging the clutch electrically as you have done and then push on the disc slightly with the handle of a hammer or screwdriver. Be careful not to get your hand or fingers too close while the engine is running. Basically you are helping the magnetic field pull the disc in. I hope this helps.
U may be low in Freon gas. When Freon is low there's low pressure switch that will prevent A/C compressor clutch from engaging to protect it from failure. So, first check Freon pressure & any leaks form lines & hoses fittings. Even if the fan is working, that doesn’t indicate proper compressor OP'S. Look at the compressor front side you'll see the clutch stationary while the AFT pulley moving.
Then put air-condition compressor switch to ON (Engage), You should see the clutch engage & start rotate, If NOT, this is very clear indication u r low in Freon. Regards; MAR
it could be the air conditioning clutch going out. to check turn your car on and idle it with ac on and hood open. at the ac compressor it will have a pulley on it with a clutch that engages when the air conditioning is on. if it engages and disengages it can be the clutch itself has gone bad, the ac clutch will also disengage if there is not enough freon in the ac system, will also engage and disengage if the pressure gets too high in the ac system. Depending on the year of the vehicle it will disengage at full throttle and come back on when you are not at full throttle.
If it is a metallic sounding screech for example take a coke can and drag it across pavement kind of sound it could be a bad compressor or a bad ac clutch. If it is a more rubbery sound for example a car spinning its tires kind of noise it could be a loose belt.
1. Check to make sure all belts are tight under hood
2. start car and look at ac compressor to make sure compressor pulley is turning and that the fan clutch is engaged spinning