The pulley spins the entire time the engine is running, but the clutch plate is stationary when the AC is off. Older vehicles have a clutch type compressor. When the AC isn’t on, the wobble plate inside the compressor is in the 0° position, so the compressor isn’t compressing any refrigerant. The pulley drives the compressor the entire time the engine is running. Late model vehicles use a clutch-less variable displacement AC compressor. Before you start, know the difference between a clutch type AC compressor and a clutch-less compressor After reading, go to this post to learn how to diagnose a compressor clutch problem. This is a full explanation of how the system works. If so, try the troubleshooting techniques described here. If you’re here, chances are you’ve tried to recharge your AC system and found a compressor clutch not engaging issue. To ensure that you choose the best oil for your Mazda Protege, consult your owners manual for the information.Repair Topics > Air Conditioning Symptoms and Repair > Compressor Clutch > Compressor clutch not engaging Compressor clutch not engaging Car air conditioner compressor clutch not engaging It is important to use the correct oil for the model of your car, and to keep it at the proper level. The air conditioning unit of any car contains moving parts that require proper lubrication in order to work at maximum capacity. Does the Mazda A/C system require lubrication? If left unchecked, short cycling can cause undue wear and tear on the engine and significantly reduce fuel economy. Having levels that are too low or too high can cause the problem. It occurs when the system repeatedly turns on and off in short cycles, and the culprit is often due to incorrect refrigerant levels. Short cycling is not an uncommon occurrence, but it needs to be addressed when it happens. What causes the Mazda A/C unit to short cycle? Sometimes a malfunctioning unit can be repaired simply by replacing this part. The vehicles clutch serves this function by turning it off and on as needed, and thus is one of the most important parts of the system. Without this, it would quickly freeze up and stop working. In order to operate correctly, the compression unit must be switched on and off. It is a critical component of the car’s air conditioning system because it controls the operation of the compressor. Located within the engine near the compressor of the Mazda Protege, is the clutch. Sometimes it will seize and fail to regulate the activity of the compressor. The compressor clutch fails to move during operation.The engine makes loud noises when the air conditioning is turned on.The air being distributed within the cabin of the Mazda Protege sedan is noticeably warmer than usual.There are some warning signs that indicate the need for a replacement in your Protege, including: Just as with almost any other car parts, continued use of this component of your Mazda air conditioning system will cause it to eventually wear out. What happens when your Mazda A/C compressor goes out? With a replacement A/C compressor and clutch for Mazda Protege, you can get your air conditioning system back to peak performance. Malfunctioning A/C compressors, including the clutches that are a part of these systems, are a common cause of this problem. While the Mazda Protege is a great car for traveling from point to point with optimal fuel economy, it can be extremely uncomfortable if the air conditioning is not working properly. Mazda Protege A/C Compressors and Clutches
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