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What are the symptoms of a broken water pump on a car?


Symptoms of a broken water pump on a car:

1. Unstable idle ignition
Connected to a transmission belt, the water pump draws cold water from a water tank and feeds it to the engine for the purpose of cooling. A broken water pump can directly affect the rotation resistance, causing the engine’s transmission ratio to vary after ignition and leading to instability. In the case of excessive resistance (typically in winter), the engine may flame out.

2. Water pump leakage
The most common leakage involves coolant liquid, and some water can be found at the vent of the water pump. Coolant liquid is intended to solve the problem of water boiling during high-speed operation of the engine. In the event of coolant liquid leakage, inspect the cooling fan, heat pipe radiator, and water pump for any sign of damage.

3. Noise
If abnormal frictional sound (rotary friction) is heard, the water pump may have been damaged. Of course, the sound may also result from a broken internal bearing or a loose or detached impeller. Therefore, in the event of such abnormal sound, all suspected parts should be checked one by one.

What are the symptoms of a broken water pump on a car?

Advantages of vika Water Pump:


Pump housing material is ACD12 aluminum, with high density and hard to cause porosity or distort.


1. The hardness degree reaches 0.8-1.5mm in HF heating process, and it can bear bigger radial force and tenacity. 100% passed noise & vibration test.

2.  Material for ball and roller is Cr15, with even hardness and high abrasion resistance.

Water seal

1. High quality ceramics seal Al2O3 prevent water leakage and reduce noise.

2. Good air-tightness, the volume of  leaking gas on the condition of a constant pressure is ≤2ml/min. The average wear loss of stationary seat is ≤0.02um/100h

3.  Material for the base is HNBR, increase the air-tight of products.


1.  Impeller material is PPS+GF, with better kinetic balance and hard to distort or fall off.

2.  All the impellers under vika brand are supplied by Volkswagen OEM factories, stability is good.