Asked by: Alistair Atxutegi
asked in category: General Last Updated: 6th January, 2020

Why does my car make a hissing noise when AC is on?

The compressor has a valve that, when leaking, can create a small hissing noise. Valve leaks need to be fixed as soon as possible, as these valves help with the pressurization of the refrigerant gas. The compressor hissing or shrieking is a serious situation: it means the pressure inside the compressor is too high.

Click to see full answer.

Besides, why does my AC make a hissing noise?

A Hissing Air Conditioner A continuous hissing that sounds like gas escaping from the AC is something is usually a warning noise. Internal valve leak: The compressor valve can start to leak, causing a hissing sound. This valve controls the pressurization of the refrigerant, so this needs to be repairs ASAP.

Likewise, what sound does a bad AC compressor make? Loud noises when the compressor is running A worn bearing will produce a high pitched squealing or grinding sound, while a seized bearing will produce a grinding noise or a noticeable belt squeal.

Similarly, you may ask, why does my car make noise when the AC is on?

If you turn on the AC and immediately hear a rattling noise, there are a few potential causes: Compressor: If your AC compressor is beginning to fail, it can make a rattling noise. Belt: If the serpentine belt is worn, it can slip when the compressor engages, causing noises.

How much does it cost to fix AC leak in car?

If leaks are detected, it typically costs $150-$800 for minor repairs to a vehicle's air conditioning system and then recharging it. This generally includes replacing a few parts like hoses, sensors, or either the compressor or condenser.

22 Related Question Answers Found

What makes a hissing sound?

What happens when your car AC blows hot air?

Why is my AC whistling in my car?

Is an AC refrigerant leak dangerous?

Can you repair AC coil leak?

What does a bad blower motor sound like?

How much does it cost to fix a blower motor in a car?

Will a bad AC compressor affect the engine?

How do I fix hissing noise in my car AC?

Can I drive with a bad AC compressor?

Does AC compressor make noise?

How much does it cost to replace an air compressor?