Car Water Pump Problems

Car water pump problems arise due to faulty pumping system, incapable of pumping water to the engine. Read ahead to know the details.
Continuous driving for miles after miles and hours after hours makes the engine hot. If the car engine is not cooled at frequent intervals, it further leads to multiple car problems. To avoid such snags, a water coolant is placed that pumps water to engine, thereby absorbing the excess heat. The cooling system is composed of water pump, radiator, thermostat, hoses and coolant. The car water pump helps to transfer water to the radiator. Sometimes, the cooling system may also face problems thereby decreasing efficiency of the coolant. The water pump is one of the most important part of the cooling system. It is driven by a drive belt, fan belt or a time belt. It forms a circulation system, by moving the coolant from radiator through the engine and then back to the radiator. The pump is fitted with a shaft that has a pump rotor at one end and a pulley at the other end. Car water pump problems arise when fan belt fails to perform the cooling action. If problems persist, the pump needs replacement.

How to Detect Car Water Pump Problems

Problems mostly arise due to overheating. Some of the symptoms are, failure of pump to deliver the liquid, pump drawing too much power and excessive vibration in the pump. There are three types of pumps: submersible pumps, oil pumps and, pond pumps and well pumps. The method of detection differs for each type. In order to detect over power consumption, you can check the gas consumption level of your vehicle. Open the hood and check if the pump is able to deliver the coolant to the radiator.

Reasons Behind the Problems

If the water pump fails to perform, it leads to severe car overheating problems. If you fail to detect the snag at early stage, the heat might even damage your car. Problems arise mostly due to the following reasons:
  • Coolant leak from the pipe.
  • Damaged impeller blades.
  • Defective bearings in the pump.
  • Broken fan belt.
  • Prolonged use that leads to wear and tear.
  • Faulty radiator cap incapable of holding pressure.
  • Screeching noise from the pump.
How to Replace a Car Water Pump

The pump replacement is needed if the damage is beyond repair. The following steps shall guide you with the correct procedure of car water pump replacement.
  • Arrange the necessary tools. They are: screwdrivers, gasket sealer, scraper, new hose clamps, gasket, ratchet wrench (open and joint) and new water pump.
  • At first, support the hood with jack and then remove the negative end of the battery.
  • Before draining the coolant, remove the hose of the water.
  • In this step, you need to remove the fan clutch and unbolt the fan.
  • Once you have removed the hoses and fans, start unlocking the fasteners that hold the water pump to the engine.
  • Remove the water pump from the engine and start the replacement process.
  • Adjust the new pump accurately and tighten the screws.
  • Replace the parts you have removed. Re-install the clamps and reconnect the hoses.
  • Firmly tighten the belts so that there's no leakage.
  • The last step is to close the drain pipes and fill the coolant in the radiator.
N.B: Ensure that the engine is cold and handle all inflammable materials and sharp devices safely.

Once you become efficient in detecting the car water pump problems, you can carry out the replacement process at home. This way, you can save the water pump replacement cost. Make sure you follow all the safety guidelines before starting the replacement.
By Saptakee Sengupta
Published: 6/22/2010
Bouquets and Brickbats