CAR Windscreen washer pump

Windshield washer pump: common defects and their signs

  1. Short circuit in the winding.
    • The pump stops operating, doesn’t react to activation of the washers.
    • Washer liquid doesn’t come from the nozzles to the windshield.
  2. Breakage of the pump adapters.
    • Sound of motor operation is heard, but the window washer doesn’t work.
    • Liquid is sprayed to all directions.
    • Pressure of washer liquid is low, it doesn’t get onto the windshield.
  3. Jamming of the valve.
    • Washer liquid doesn’t get onto the windshield.
    • Only the front or rear window washer stops operating.

How to repair or replace windshield washer pump?

Repair of the washer pump is not performed. If the part is defective, it should be replaced. It is a quite simple procedure, which can be performed by yourself. The algorithm of window washer pump replacement on a car is the following:

  1. Stop the battery power supply.
  2. Locate the washer liquid tank. Its location may vary for cars of various models. Usually it is located under the bonnet or under the car wheel arch cover.
  3. Disconnect the connectors of the wires coming to the electric pump.
  4. Disconnect all the hoses from the tank and the electric pump.
  5. Drain washer liquid from the tank, and disconnect the pump from it.
  6. Install a new component and assemble all parts in the reverse order. It is also recommended to replace all sealing elements at installation of a new pump.

Washer pump / screen wash pump Information

Washer pump is part of the wiper, which supplies cleaning liquid to the parts that need to be washed – body windshield and lamp glass. This component is situated in the washer tank. Under the washer filler there is the tank. The tank is a vertically elongated vessel. Washer pump is located inside it. As for the pump connector, you will need to remove the expansion tank of the cooling system. Under it there is the connector from the black motor.

The most common problems that can happen with the washer pump when in service mainly occur in winter at low temperatures. If it is operating at very low temperatures, it often fails. So when you start the windshield washer, the motor that is trying to feed water, produces a specific sound.

Water is not supplied as it is frozen.

There are a lot of advises how to unfreeze the water. You can pour hot water, alcohol, which in interaction with water produces heat. Also you try to pour warm antifreeze fluid. But do not follow these advises. The most correct would be to put the car in a garage or covered parking. After some time the water will thaw naturally. One more common mistake is when drivers start to turn the engine. As a result it blows.

If you face this problem, do not rush to buy new motors in repair shops or specialty stores. It will be much cheaper to buy the part you need (tension roller, pulse sensor or window lifter) in our online shop. In this case you will save time and money.

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