Water Pump Failure

If you are looking for some tips on water pump failure diagnosis, this article is just what you are looking for. Here you will find a listing of the prime water pump failure symptoms that will make a diagnosis simpler.
Any machine with moving parts generates substantial amount of heat and friction, that eventually leads to problems in functioning. A machine with a high level of complexity like a car is bound to generate even more heat. This necessitates a mechanism, which can lower the heat and levels of the various car parts, including the engine. Also needed is a lubrication mechanism, which can keep the effects of friction at bay. This mechanism is inbuilt in all modern cars to ensure smooth functioning and elongate the life span of all car parts. Engine is the most vital part of a car's internal machinery and keeping its temperature in control is most important. A water pump is the most crucial part of the engine's cooling mechanism, designed for that purpose. A water pump failure can have a drastic effect on the engine's functioning and lead to a car breakdown. Hence it is necessary that a car driver knows the water pump failure symptoms as early as possible. After a discussion of the car water pump working, we will have a look at the prime signs of water pump failure.

Water Pump Function

The water pump is driven by the torque generated by the engine itself. This is facilitated by a belt attached to the water pump, driven by engine torque. It pushes a coolant through tubes placed around the engine and transports a substantial amount of heat away; thereby cooling the engine. In modern cars, water pump coolant circulation speed is controlled by the RPM of the engine. Higher the RPM, higher is the heat generated and hence greater is the need for coolant. Hence the coolant circulation speed is manipulated to keep pace with RPM speed of the engine. This ensures that the engine remains cool even when it is performing at its peak.

Signs of Water Pump Failure

After that brief overview of how does a water pump work, let us have a look at the signs of water pump failure that any car driver should be on the look out for. If you are wondering when to replace a water pump, then let me tell you that there is no absolute time frame. How long a water pump will last, entirely depends on usage. The common symptoms of water pump failure presented below will help you identify when a replacement may be imminent.

Impeller Damage
One of the prime components of the water pump mechanism is its impeller. An impeller breakdown is one of the prime signs of water pump failing. You need to inspect the water pump mechanism for to check for this symptom. An impeller damage is best taken car of with water pump replacement. There is no point in going for repairs on the water pump, if it is highly damaged.

Leaking of Coolant
Your car's water pump may be in full working condition, but if the coolant itself is leaking, it does not have enough fluid to cool the engine. That's why, if you notice coolant leak, it is absolutely necessary that you get the coolant assembly checked.

Engine Overheating
If you notice that the engine has overheated, then one of the prime causes that may lead to this car problem is a water pump failure. If this symptom arises, you must get the water pump checked as soon as possible. Ignoring the problem for long, may eventually lead to major engine failure, which will lead to major car repairs.

Without the pump in working condition, the coolant mechanism is useless. Hence, water pump problems need to be immediately dealt with. Knowing these prime symptoms of water pump failure will help you prevent a major car breakdown due to engine overheating. Make it a point to check the water pump functioning, as a part of your periodic car maintenance and servicing procedure.
By Omkar Phatak
Last Updated: 9/23/2011
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