Overheating of the engine one among bad water pump symptoms you should lookout for. Water a is a component of the cooling system that ensures the flow of coolant through the engine block.
The water pump keeps the coolant flowing with the aid of force generated from the crankshaft pully. The serpentine or auxiliary belt drives the water pump thereby keeping the coolant flowing as needed.
If for any reason the water pump fails or starts to fail the engine’s temperature will not be regulated as expected leading to overheating. When the engine overheats a lot of damages can happen if it is not fix in time.
One among the multiple things that could happen is blowing the head gasket, in worst case scenario cylinder heads could even crack and burn pistons. Now that we have seen what a car water pump lets see symptoms of a bad water pump.
5 bad water pump symptoms you should know
Just like many other engine parts, the water pump has is functions and peculiarities. The water pump shows a very distinct signs and symptoms when it bad that makes it different from any other car part.
Here i will list out the major and main signs that indicates a problem with the water pump. This signs are very specific and reveal the state of water pump working condition.
- Symptoms of a Bad or Failing Water Pump
- Coolant Leak at the Front-Center of your Car
- Rust, Deposit Buildup, and Corrosion of the Water Pump
- Water Pump Pulley is Loose and Making Whining Sounds
- Engine is Overheating
- Steam Coming from your Radiator
Generally strange load noise from under the car hood are indicators of problems or malfunctioning engine parts. Water pump also makes this whining sound that becomes louder when accelerating.
Basically, these whining load sounds are made as a result of either a loose belt or worn-out bearings. However, if the water pump is bad failing or faulty then, the loud sound will be accompanied by one of the above mentioned symptoms.
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What causes a water pump to fail?
Remember the water pump does the job of making sure coolant keeps flowing through the engine block through the force from the crankshaft pully. The water pump is being driven by the serpentine or auxiliary belt drives.
From this point of view there are many factors that could lead to a fail water pump, which includes a loose belt. The major cause of water pump failure is said to be worn bearings, among other causes includes the following
- A Bad gasket Seal The water is supposed to keep coolant flow in check passing coolants through the right paths and gateways. This is archived because of the gasket or seals that exists between the water pump housing and engine block. The seal between the two compartments keeps coolant from leaking out of the engine. This seal also does the work of keeping excessive air from entering the car’s cooling system. The seal can become weak and broken as a result of wrong installation or incorrect application. If it is not properly installed then coolants can find it way out from the broken seal. While a seal that’s leaking coolant is bad, it’s often the air intake that’s worse. Excess air in the cooling system can lead to corrosion and/or a reduction in pump efficiency. Air pockets stuck in the engine blocks will also result in localized overheating of the engine block.
- A Loose Drive Pulley Remember that the water pump itself is driven by the force from the crank shaft via the serpentine or auxiliary belt. Been that the water pump is been driven an auxiliary belt means the it is depending greatly on the belt to function properly. Automatically it means the belt is faulty then the water pump will not work as expected. If the pully belt is loose or not fitting well there would be decrease in force of driving the water pump. If the water pump’s drive pulley is vibrating, the pulley bearings will wear and eventually fail. This reduces pump efficiency before eventually causing failure. Additionally, a wobbling drive pulley can cause the water pump’s impeller to become imbalanced. This will cause pump failure as well. For these reasons, it’s recommended that the water pump drive pulley be replaced at the same time as the water pump itself. In fact, many water pumps come with the drive pulley already installed.
- A Bad or Broken or worn out Belt Like i have motioned before in second causes of water pump failure, a broken, loose or worn out pully belt will directly affect the water pump performance. Regular visual inspections should include the belt that drives the water pump pulley (if applicable). The belt should not be worn, cracked, or slipping. If the belt isn’t sufficiently snug, it should be tightened to specification, and this tightness should be checked regularly. A failed belt means a non-operational water pump, which is as catastrophic as a broken water pump. If a belt is over-tightened, it must be replaced and the tensioner reset. Otherwise, it can damage the pump’s drive pulley and lead to premature bearing and/or casting failure.
- Corrosion The bad effect of corrosion does not only affect the water pump but every other engine part. The correction of the water pump generally caused by the leaking coolant seal. Although harder to detect, corrosion kills a lot of water pumps. Corrosion often occurs when the fluid in the cooling system is not properly maintained, or when the fluid is replaced with a mix that includes tap water (distilled water should always be used when refilling cooling systems).
Unfortunately, corrosion only becomes detectable when the water pump requires repair. The pump will begin to leak, the pump’s impellers will be corroded (thus reducing efficiency), or the seal between the block and the pump will be damaged and leaking.