Car Belt Squealing When Ac Is On

As the engine warms and the belt moves the sound should go away. The sound of a squeaky belt in your vehicles engine is usually because the rubber belt is slipping on the metal pulley.

Belt Squeal When Engine Is Cold And Heater Fan Is Turned On Honda Civic Forum

The alternator power steering pump water pump and air-conditioning compressor may all be connected to this serpentine belt.

Car belt squealing when ac is on. One of the most obvious signs that a belt needs to be replaced is that it will produce a loud squealing noise when the AC is turned on. Press J to jump to the feed. DIAGNOSIS The drive belts should be inspected for proper tension and wear.

Most often the belt screeching occurs at cold start. This is probably the most common sign that your AC belt is failing. In most cases a squealing car air conditioner noise is caused by a worn out serpentine belt.

If you hear squeals then it could be your engine belt or serpentine belt. This places a load on the engine and the drive belt that rotates the compressor. However most of them last longer while some dont.

When the AC is activated the compressor is engaged. The last cause of a squealing engine belt is simply an old belt. If your wheel well suffers ice accumulation then strange noises will follow.

As soon as you turn on your AC unit you can hear a squealing noise coming from the belt. With correct tensioning and proper maintenance serpentine belts are built to last between 50000 and 100000 miles. Posted by just now.

If the belt is loose or worn the belt can slip on the compressor pulley and emit a loud squeal. The alternator and the belt are usually in plain view when youre looking at the engine which helps you find identify and fix the squeaky belt on a car. When this tensioner starts to fail it causes car belt squealing when turning most times the noise will be there when the engine is idling.

In some cases this may be attributed to a loose belt or perhaps water or oil contamination. When extra things are applied to the electrical system the alternator gets resistance causing an extra load on the accessory being turned by a belt. Cold temperatures will stiffen the rubber in the belt causing it to make a noise on start-up.

They may even get worse as you step on the gas pedal to accelerate. With the engine off open the hood and find the belt. If the belts on your car are squeaking this is.

Press question mark to learn the rest of the keyboard shortcuts. Could there be something wrong with my AC belt. AC belt squealing when turned on.

The serpentine belt is a long winding belt that keeps many crucial parts of your car functioning including the power steering pump air pump water pump alternator and of course your air conditioner. If the belt is not very tight sometimes certain devices like air conditioner compressors will put up enough resistance to movement that the belt slips on the surface of the pulley. A properly tensioned belt should have aproximately 12 of deflection at its greatest span between pulleys.

This component can fail at any time. It should disappear as the engine warms up. I was first told it was the belt needed some lubrication but that didnt help.

This may be occurring due to any number of factors including the following. The rubber the belt is made out of wears out over time can become glazed or even cracked which can all cause noise. The squealing sound could be because the belt is loosened or if water or oil gets on the belt.

This would be after startup for the alternator when turning the wheels for the power steering pump or when the AC turns on for your air conditioning compressor. This squealing noise is constant whenever I start the car. If it is cracked or missing ribs just replace it before it breaks.

It sounds like it may also have some glazing on the ribbed part of the belt. Squeaks that only occur when there is an early morning dew or heavy fog means there is moisture on the belt. Its cheap and easy to do and all you need is a bar of soap.

This is more than a car repair forum. Here is how to quiet squeaky belts on a car. Most cars today have a single continuous serpentine belt that winds around various pulleys found on the different components on the front of the engine.

When you hear a loud squealing sound from under your cars hood its very likely that the problem is a belt that is slipping against the pulleys. Operate the headlight switch. A failing or bad Hydraulic belt tensioners symptoms are rattling noise or leaks on the tensioner and the belt.

If the sound of the screech changes then the fault is likely in the belt that drives the air conditioner. However in other cases this may be attributed to a severely worn belt that can no longer properly grip the pulleys. But in most cases it will be your serpentine belt that is making these noises.

When the car is started after being parked for at least four or five hours. Start the car while it is cold and turn the AC off and on. The sound of a squeaking belt in a cars engine can be caused by weather conditions leaking fluids maintenance issues or wear and tear.

I was later told the ac compressor was bad so I had it replaced. Similar to when your tires squeal on the pavement this slip causes a dreadful noise. After the alternator was installed I started my car up and when I eventually turned the Air conditioner on it started making a screechingsquealing type noise.

The magnitude of sound can range from a soft squeak to a loud and noisy squeal and it may occur while starting a cold engine or during normal vehicle operation.

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