Symptoms Of A Damaged Water Pump: How To Spot Them And More!

Hi-ya! good night, at this time i will created an article about Symptoms Of A Damaged Water Pump: How To Spot Them And More!

The water pump in any vehicle functions as the heart of the cooling system. The automotive water pump, normally driven by a belt and pulley arrangement, has internal impellers inside the casing that rotate at a high speed to circulate the water. The faster the vehicle goes, the greater the volume of coolant going into the engine. On this occasion we will be guiding you to tell you everything about the signs and symptoms of a damaged water pump.

Water pumps can fail for a variety of reasons, including faulty seals, bearings, impellers, and belts. A vehicle owner can narrow down troublesome symptoms by looking for specific clues that indicate water pump problems.

Symptoms of a damaged water pump

Signs of a Failed Water Pump
Signs of a Failed Water Pump

When the water pump fails or begins to fail, it begins to manifest certain signs and symptoms that indicate that something is wrong. The signs of a failed water pump are as follows:

1. General overheating

If the car begins to overheat and stays in a temperature range that shows above normal conditions, it is most likely that the water pump is the main suspect for this problem. If the coolant remains at the proper level with no leaks and the thermostat is working properly, the higher than normal temperature could indicate worn and rusted water pump impellers.

Plastic impellers on some cars can break, reducing circulating pressure. A constant and higher than normal engine temperature could be caused by damaged impellers.

2. Leaking water pump

To find a leak in a water pump, you can place a piece of white writing paper under the water pump and let it sit overnight. This works best if the vehicle has been driven for some time.

Check the paper the next morning and it will tell you if there has been a leak. The paper will be moist, usually green or orange in color, the color of the coolant. The leak could be coming from the water pump housing gasket or from the “drain” hole in the bottom of the water pump.

3. Drain hole leaking

The drain hole of a water pump serves as a bypass orifice or vent, and is located at the bottom of the water pump casing. When the inner seal degrades in the water pump, the coolant bypasses the seal and has external leaks. Any dripping from this small hole indicates that the seal has failed, and possibly the shaft bearings. A failed seal requires replacement of the water pump.

4. Shaft bearing clearance

Water pumps have internal and external bearings that support the impeller shaft. They have factory sealed bearing cups that serve as permanent lubrication. When shaft bearings deteriorate, excessive play results in the hub and pulley. Any oscillation in the water pump pulley while the engine is running indicates faulty shaft bearings.

You can manually pull the pulley from side to side and up and down, to find any excessive play in the shaft. Worn shaft bearings require water pump replacement.

5. Bearing noise

The bearings of a faulty water pump make a distinctive noise when they are worn or fail. They have a low frequency grunting or gravelly sound during engine operation. The noise is especially audible when the vehicle is idling.

Placing a screwdriver against the top of the pump casing and listening to the other end against your ear can magnify and isolate sound. Rust and bits of metal inside the bearing caps cause the grunting and sometimes scraping noise. Defective bearings also require replacement of the water pump.

6. Pump straps

The water pump belt drives the pump pulley.. If the belt slips or becomes disconnected, the water pump can force coolant through the system. Worn and slipping belts normally screech when starting the engine. Worn or broken belts should be replaced for protection against severe engine overheating.

Advice

This way you will know there is a problem with a water pump. Remember that it is better to detect the symptoms of a damaged water pump in time and fix the fault to avoid more severe problems.

The water pump in any vehicle functions as the heart of the cooling system. The automotive water pump, normally driven by a belt and pulley arrangement, has internal impellers inside the casing that rotate at a high speed to circulate the water. The faster the vehicle goes, the greater the volume of coolant going into the engine. On this occasion we will be guiding you to tell you everything about the signs and symptoms of a damaged water pump.

Water pumps can fail for a variety of reasons, including faulty seals, bearings, impellers, and belts. A vehicle owner can narrow down troublesome symptoms by looking for specific clues that indicate water pump problems.

Symptoms of a damaged water pump

Signs of a Failed Water Pump
Signs of a Failed Water Pump

When the water pump fails or begins to fail, it begins to manifest certain signs and symptoms that indicate that something is wrong. The signs of a failed water pump are as follows:

1. General overheating

If the car begins to overheat and stays in a temperature range that shows above normal conditions, it is most likely that the water pump is the main suspect for this problem. If the coolant remains at the proper level with no leaks and the thermostat is working properly, the higher than normal temperature could indicate worn and rusted water pump impellers.

Plastic impellers on some cars can break, reducing circulating pressure. A constant and higher than normal engine temperature could be caused by damaged impellers.

2. Leaking water pump

To find a leak in a water pump, you can place a piece of white writing paper under the water pump and let it sit overnight. This works best if the vehicle has been driven for some time.

Check the paper the next morning and it will tell you if there has been a leak. The paper will be moist, usually green or orange in color, the color of the coolant. The leak could be coming from the water pump housing gasket or from the “drain” hole in the bottom of the water pump.

3. Drain hole leaking

The drain hole of a water pump serves as a bypass orifice or vent, and is located at the bottom of the water pump casing. When the inner seal degrades in the water pump, the coolant bypasses the seal and has external leaks. Any dripping from this small hole indicates that the seal has failed, and possibly the shaft bearings. A failed seal requires replacement of the water pump.

4. Shaft bearing clearance

Water pumps have internal and external bearings that support the impeller shaft. They have factory sealed bearing cups that serve as permanent lubrication. When shaft bearings deteriorate, excessive play results in the hub and pulley. Any oscillation in the water pump pulley while the engine is running indicates faulty shaft bearings.

You can manually pull the pulley from side to side and up and down, to find any excessive play in the shaft. Worn shaft bearings require water pump replacement.

5. Bearing noise

The bearings of a faulty water pump make a distinctive noise when they are worn or fail. They have a low frequency grunting or gravelly sound during engine operation. The noise is especially audible when the vehicle is idling.

Placing a screwdriver against the top of the pump casing and listening to the other end against your ear can magnify and isolate sound. Rust and bits of metal inside the bearing caps cause the grunting and sometimes scraping noise. Defective bearings also require replacement of the water pump.

6. Pump straps

The water pump belt drives the pump pulley.. If the belt slips or becomes disconnected, the water pump can force coolant through the system. Worn and slipping belts normally screech when starting the engine. Worn or broken belts should be replaced for protection against severe engine overheating.

Advice

This way you will know there is a problem with a water pump. Remember that it is better to detect the symptoms of a damaged water pump in time and fix the fault to avoid more severe problems.

Leave a Comment