Water Pump Failure

Can K-Seal Fix My Water Pump?

If you want to avoid expensive mechanic bills but don’t have the technical knowledge or experience needed to resolve a leaking water pump in any other way, K-Seal is the option for you – it can fix most leaks in the water pump casing and in the seals.

You can get a bottle of K-Seal to fix your water pump. Our stockist search tool makes it easy to find a stockist and get on the road quickly.

Read More: how to fix a water pump

What Are the Symptoms of Water Pump Failure?

  • You may notice that the engine is overheating. This may not be obvious until the warning light turns on. A general idea of what the operating temperature should be might help, but only if it can be easily measured
  • Coolant may be leaking around the water pump through the weep holes on the casing. There will be a puddle on the floor when the car has stood in the same position for a few hours – all you have to do then is follow the leak to its source
  • The water pump may be making more noise than it usually does when the engine is running (though this will mean that you have to know how much noise it should usually make). The source of the louder noise will probably come from a defective impeller or an impeller that is coming away from its shaft, in which case it will have to be replaced
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How Much Will Water Pump Repair Cost at a Garage?

There are many factors that can affect the cost of replacing a water pumps, including where you live and how much you drive. While a water pump should cost between $50- $75, labor costs can increase your total bill. Water pump replacements can run up to $500. It’s therefore important to get quotes from a range of local mechanics so you can be sure you’re getting the best deal.

How Does a Water Pump Work?

The water pump circulates coolant liquid around the cooling system and engine to reduce heat. To deal with the higher heat levels produced by the engine working harder, the pump will circulate more.

K-Seal will repair car water pumps that are cracked or leaking
Water Pump

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An impeller is a cylindrical device made of metal or plastic that pushes the coolant through it and around the engine. The impeller is mounted on a shaft that has a seal that supports it and allows it to operate without being hindered.

Coolant is circulated by centrifugal force. A belt attached to the pump and crankshaft keeps it spinning. Overheating can cause engine damage and make it very expensive to repair. This is why the pump is essential in moving coolant where it needs to. After the coolant has been circulated through the engine it is returned to the pump for circulation.

Why Do Water Pumps Fail?

Pumps can fail for many reasons. K-Seal has the ability to repair a number of common issues, including a casing leak. This allows coolant to escape which means it doesn’t circulate through the engine and bring its temperature down.

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The reasons why a water pump seal might begin to leak include:

High temperatures

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It is inevitable that at some point the polished rubber surface of the seal will succumb to the high temperatures it is subjected to every time the vehicle’s ignition is switched on. Tiny cracks and holes will develop, allowing coolant to escape.

Abrasive particles

It is possible for tiny abrasive particles to get into the pump and damage the seal, such as in tap water that has been mixed with antifreeze to create the coolant (this is why you should only use soft, distilled water if mixing coolant yourself).


Corrosive inhibitors in the seal plating deteriorate in effectiveness over time and the coolant becomes more abrasive the more it is used, which is why regular flush-and-fills are recommended. As the inhibitors deteriorate and the coolant’s abrasiveness increases, electrolysis on the seal face occurs and coolant is allowed to seep through it.

What about other parts of my engine?

Your engine’s water pump may be the problem, but it is not the only thing you should be looking at. Click on an engine part to see the essential components of your engine.

Are you still not sure what is wrong? Our 60 second problem solver will quickly pinpoint the problem based upon your symptoms.

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