Why my car AC compressor keep burning the clutch?

The clutch is burning up due to slip of the clutch overheating the clutch and melting the rubber. The reason it is slipping is the compressor locking up at the higher RPMs. You will need to reclaim the A/C refrigerant and disconnect an A/C line to see if there is black or dark grey residue in the system.

What causes AC compressor clutch failure?

Clutch failure is usually caused by high pressure or voltage issues, or a combination of both. … With a wrong charge the pressure switches will cause the compressor to constantly engage and disengage. If there is not enough charge the compressor will overheat due to a lack of oil circulating.

Why does my AC compressor keep burning out?

Some common causes of compressor overheating are lack of external cooling, poor ventilation, short cycling, low suction pressure, high head pressure, lack of lubrication, excessive wear and tear, and electrical problems.

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Does a new AC compressor come with a clutch?

How are A/C Compressor Clutches Made? Some A/C compressor clutches are replaced individually, while others are included with the compressor assembly. There’s no need to purge and fill any refrigerant when the pulley is replaced by itself, making replacement a moderately difficult project for the average DIY mechanic.

How do I know if my AC compressor clutch is bad?

What Are the Signs of a Bad AC Compressor Clutch?

  1. The pulley that’s attached to your AC compressor may freeze and make a squealing sound when you turn your AC system on.
  2. Your AC compressor clutch may struggle to engage your AC system’s compressor when your AC system is turned on.

Can I drive with a bad AC clutch?

Your AC pulley is a free spinning pulley that has a clutch on it. It will spin freely until you turn the air conditioning on. If the clutch doesn’t work properly, you will still be able to drive your car.

What does a bad AC compressor clutch sound like?

Squealing noise: A loose, dry, or worn A/C compressor belt will cause squealing noise. This noise will be worse during acceleration. Rattling noise: A loose or worn clutch hub or loose compressor mountings bolt will also cause rattling noise from the compressor.

How can you tell if you need a new AC compressor?

Four Signs Your Car’s AC Compressor Is Going Bad

  1. Odd Sounds. You might hear some strange noises when you flip on your vehicle’s air conditioner and if you do, it’s probably the compressor. …
  2. Hot Air. The whole point of turning on your vehicle’s AC is to get cold air to come through the vents. …
  3. Fluid Leaks. …
  4. Stuck Clutch.
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What should you look for if a compressor burns out?

If a compressor does burn out, the oil becomes extremely acidic. If all this acid is not removed when the compressor is replaced, the high acid levels will attack the new compressor and cause another compressor motor burn-out in a short period of time.

How do you tell if a compressor is burnt out?

The first symptom of compressor burnout may come when someone notices that the fan is running but no cool air is produced. Upon inspection it becomes clear that the fan motor is running but the compressor is not.

How do I know if my compressor is bad?

Some of the signs of a bad A/C compressor are as follows.

  1. A Lack of Hot Air Being Released Outside. …
  2. Loud or Strange Noises From the Unit. …
  3. Failure of the Compressor to Turn On. …
  4. Circuit Breaker Tripping. …
  5. Leaks Around the Air Conditioning Unit. …
  6. Warm Air Instead of Cool Air Being Delivered to the House. …
  7. Reduced Airflow.

Can I just replace the AC compressor on my car?

Typically, replacing a compressor should be done by a professional, but you can perform this task at home if you are competent working with your hands. Doing the job yourself can also save you a decent amount of money. The following items will need to be replaced on the compressor: New compressor.

Is it better to replace AC clutch or compressor?

The primary reason to replace an entire A/C compressor and clutch assembly is for better long-term reliability. The AC clutch pulley might be what needs replacement, but it’s likely to have done some damage to the compressor on its way out.

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Should AC clutch spin freely?

Most AC clutches are designed to spin freely when disengaged, and also with the pulley and compressor when those are engaged. If the clutch spins freely at all times, and the compressor never comes on, then it may not be engaging and therefore needs to be replaced.