Ac compressor

No cold air i put 1 1/2 can r134 the clutch
Wont is not turn on. But when i jump start the clutch it retract and goes click. So the clutch engage but woknt spin when ac is on is it bad compressor akso there is no pressure on low side when i test it.

I put leak detector in no sign of green dye
Leak so i took out the compressor and check jump start clutch engage and i manually turn the clutch it turns i could see the pistol moveing but there were no oil when i turn the compressor upside down.

So is compressor bad what is the switch
Or connector okn the back of compressor
I know

Experienced mechanics share their insights in answering this question :
Hi there. It sounds like you may have one or two concerns here. Does the AC indicator light up when you turn it on? If so, this means that the command for AC is active. If the light flashes, this means the module is telling us that the compressor is not turning. If the light does not turn on, there may be no signal to the clutch. The system does not hold much oil and you may not have seen much come out of the compressor. Inspect any oil that has come out for metal specks or a greyish color; this would indicate compressor failure and now there is metal throughout the system. I strongly suggest having a qualified technician inspect the system, both mechanically and electrically to determine the root cause/causes of your concern. Your Mechanic has several technicians available that can assist you with an ac system inspection and provide an estimate and direction of repair.

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The average cost of a new AC compressor is $800 to $2,800 for both parts and installation. * Compressors for smaller units, such as window or mini-split systems, start as low as $100. How much you pay depends on your compressor and home size, your HVAC system, and your warranty coverage.
Here`s the thing—you can`t repair an air conditioner`s compressor if it breaks down. The compressor of your air conditioner is essentially the heart of the system, responsible for allowing the refrigerant process that even makes it possible for your cooling system to… well… cool.
In some instances, AC compressors can be repaired. However, it is most often a better procedure to replace the faulty compressor with a new one. It is not only the most time-effective solution to the problem, but it will also most often result in a better, more durable repair.
Electrical problems – Compressor failure can also occur due to a series of electrical problems, such as voltage unbalance, current unbalance, phase loss, and too low or too high voltages.
Low Refrigerant Level

The AC system requires a specific amount of refrigerant to function properly. If the level is too low, it can cause the compressor to fail prematurely. The compressor may be failing because of low refrigerant levels or air in the system, which causes friction inside the compressor.

With the AC off, the clutch does not spin. When you turn the AC on, the clutch can make a momentary click and starts spinning with the belt and pulley. If the clutch does not engage, or if it makes a screeching or whining sound when it does, the compressor needs to be serviced.
Screw compressors are among the most reliable and efficient around, but not cost-effective for smaller applications. Rotary compressors are the preferred option when operating noise is a factor. They are quiet, have a modest footprint, and do not suffer from vibration as much as other compressors.
The most commonly used type is the swash plate compressor.
The AC variants operate at 120, 230, 380, 400, 480, 575 and 600 V at frequencies of 60 and/or 50 Hz. DC enclosure air conditioners are less common than their AC variants. They typically operate at 24 or 48 V.
How Many Volts Should An AC Compressor Get? The power supply to the AC compressor should be 12 volts. This is measured from the compressor clutch connector terminals, as this is where the main power supply from the battery is directed towards.
Overheating is one of the main reasons why compressors fail, and it is usually caused by not enough refrigerant in the system.
When your ac compressor fails, less air will come out from the vents, the air coming out could be warm, and the system may continually run without actually cooling your home. This is because refrigerant isn`t pumped through the system, and it can result in a higher power bill.
If the compressor is not still under warranty, you may still choose to replace it. However, you should probably opt to replace the entire outdoor unit at the same time. In most cases, this will cost only marginally more than replacing an out-of-warranty compressor alone.
So if you turn on your AC and hear a rattle, it may mean you have a failing or bad: AC compressor. Rattling or your car air conditioner making loud humming noises which get worse as you accelerate can both be signs you need to replace your AC compressor.
The job of the compressor is to pressurize the refrigerant, turning it from a gas into a liquid. The condenser`s role is to further cool down the refrigerant and exchange heat with the surroundings.
For the compressor that is seized, you will at the very least need to replace the compressor assembly and clutch, receiver drier, expansion valve, and flush out the system. I recommend having a mechanic diagnose your vehicle to see if any other components need replaced in order to fix your air conditioner.
Oil in the A/C system is essential, primarily to lubricate moving parts, i.e. the compressor and the expansion valve needle. It also enables heat to escape from the compressor. As with refrigerant, oil in the A/C system must retain its chemical stability.
Too Little or Too Much Refrigerant

In the event that the amount of refrigerant in the system is not perfect, it could create too much pressure or strain and lead to compressor failure. Too little refrigerant is most likely caused by an insufficient charge from the last technician, or from a refrigerant leak.

Proper compressor lubrication is a critical maintenance task that will keep the unit working properly. The oil not only lubricates the compressor`s moving parts but is also an insulator and a sealant. Changing the compressor oil should, therefore, be on your list of routine preventive maintenance checklist.
Loss of refrigerant: This is the #1 way a compressor might die years before its time. The amount of refrigerant in an air conditioner is specially set to work with the compressor. If the AC loses refrigerant through leaks, the imbalance will eventually cause the compressor to overheat.
Air compressor overheating issues are often the result of excess discharge pressure, which typically stems from one or more of the following issues: Dirty condensing coils. Ill-fitted discharge line. Blockage of condenser air.
No! The clutch in inside the “bell housing”, attached between the engine and gearbox. One cannot see the clutch, therefore one can`t “ spray WD40 “ on it! Anyway lubrication would cause it to slip.
It is highly unlikely that your unit will last 30 years before needing to be replaced, however, if you follow a regular preventative maintenance routine and run it appropriately, your chances of keeping the same unit for around 15 years increases dramatically.
The longevity of your system can also depend on other factors such as the quality of the original installation and how well the unit was maintained. But the general rule is that if your system is over ten years old, it`s time to give the replacement option some serious consideration.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

when I turn my ac on my cars idle drop and stalls out and the ac is hot
ANSWER : Hello, thank you for writing in. Although the pulley is still spinning, the compressor has likely failed. If it is not properly regulating pressure in the system, one of the first signs is a warm air conditioner. Considering yours is not cooling off, the pressures are not correct. If you believe the compressor is working correctly, you may want to check for a clogged line before replacing it. Keep in mind, a blocked line has likely put extra strain on the compressor, and may cause premature failure. For more help with testing or replacing the compressor, contact our service department to schedule an appointment.

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What would cause the clutch on an ac compressor to continue to go bad after being replaced three times?
ANSWER : The compressor clutch relay on these vehicles are a known cause of sticking on the compressor clutch and overheating the A/C compressor clutch coil. Replace the A/C relay to see if it cures the clutch going bad the next time you do a compressor clutch replacement, or replace it now if you have just replaced the clutch.

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2008 VW Jetta AC not cold
ANSWER : Hi Allen. By far the best way to have your AC system correctly diagnosed is by having an AC inspection completed first. By having one of our professional mobile mechanics come to your location to diagnose the issue correctly, it significantly minimizes the mistakes in completing the wrong service. In your case, the issue could be as simple as needing to have the AC system recharged, or there is an existing leak that needs to be repaired before refilling the refrigerant. Best economic bet is to have the AC inspection completed first.

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2005 Toyota Corolla AC Compressor Not Cycling On & Off
ANSWER : Hi there. If the AC compressor is not cycling on and off as usual, it’s due to an internal component failure in most cases and would need to be replaced. If the compressor fails, it typically does not cause damage to other AC system components. It is possible that there is excessive debris inside the compressor or the bearings internal are worn out. The best thing for you to do is either have the AC compressor replaced, or make sure that the compressor is not blocked by any debris and is getting air from the outside of the vehicle.

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Seems to be an occasional misfire that is somehow related to the AC compressor
ANSWER : This is normal when the AC is on. The air conditioning compressor requires torque from the belt system on the engine to power it. When the AC is off, the compressor clutch does not activate, meaning the AC is not straining the engine. When the AC is on, the compressor clutch activates, causing the drive belt on the engine to turn the compressor. The Idle Control Actuator is what controls the engine idle. When the AC kicks in, the engine will drop some RPM, and the actuator opens to allow more air into the engine. When you are at speed, the throttle is open from the accelerator pedal under your foot. the Idle control actuator is not active at this time.
What you describe is normal.

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Does ac compressor regulate the heat disconnected compressor wire due to clicking sound now only 2 heaters in car blowdcold
ANSWER : The AC compressor is responsible for compressing the refrigerant in your air conditioning system. By compressing the refrigerant it increases the pressure that is in the air conditioning lines. When the pressure is increased there is more room for the pressure to decrease. A decrease from high pressure to low pressure will also cause a decrease in temperature. This is how the air-conditioning system works. If you need help with this issue, consider YourMechanic, as one of our mobile technicians can diagnose your A/C firsthand and help you fix it accordingly.

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Ac compressor
ANSWER : Hi there. It sounds like you may have one or two concerns here. Does the AC indicator light up when you turn it on? If so, this means that the command for AC is active. If the light flashes, this means the module is telling us that the compressor is not turning. If the light does not turn on, there may be no signal to the clutch. The system does not hold much oil and you may not have seen much come out of the compressor. Inspect any oil that has come out for metal specks or a greyish color; this would indicate compressor failure and now there is metal throughout the system. I strongly suggest having a qualified technician inspect the system, both mechanically and electrically to determine the root cause/causes of your concern. Your Mechanic has several technicians available that can assist you with an ac system inspection and provide an estimate and direction of repair.

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White foggy smoke getting out of my AC vent
ANSWER : Hi, thanks for writing in. I’d be happy to provide my thoughts on this. The first problem is that the connections the mechanic did is not allowing the AC to cycle out normally and will cause an over pressure of system and it freezes the evaporator. I recommend having the system properly diagnosed to find out the real reason the compressor will not come on. Most likely the AC compressor module is bad and needs to be replaced.

If you would like help, consider having an expert automotive technician from YourMechanic come to your home or office to inspect and diagnose this issue for you, and make or suggest any repairs as needed.

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