How To Tell When Water Pump Is Going Bad?
The engine may overheat and, in extreme circumstances, may even be completely damaged if the water pump malfunctions. It is crucial to understand how to identify signs water pump is going bad. MyMROmarts will go into great length about some typical indicators of water pump failure in this post, along with diagnostic techniques to aid in issue detection and timely resolution.
How To Tell Water Pump Is Going Bad?
Engine Temperature Rises
Once you find that the engine temperature of the construction machinery has increased, you should first suspect whether there may be a problem with the water pump. A high engine temperature may be caused by insufficient coolant, or the water pump is no longer able to effectively circulate the coolant after the starter motor starts the engine. In this case, you can diagnose it through the following methods.
Observe The Coolant Water Temperature Gauge
If you find that the coolant temperature is too high, the water pump may be faulty. If the coolant temperature gauge stays in the red zone, you need to check the water pump.
Check Coolant Level
The coolant level in the water pump should always remain within the normal range. If the coolant level is too low, the water pump will not work properly.
Abnormal Noise Occurs In Water Pump
When there is a problem with a water pump, it usually produces unusual noises. These noises may be caused by worn water pump bearings, damaged impeller, or problems within the pump body. There are two ways to identify water pump noise.
Listen Carefully
You can listen carefully for any unusual noises such as hissing, scratching, or ringing near the water pump. The presence of these sounds indicates a problem with the water pump.
Touch With Hand
Carefully touch the engine water pump with your hands and carefully feel for vibration or abnormal temperature. If the water pump runs erratically or becomes hot, you need to repair or replace the water pump in time.
Water Pump Leaks
A leaking water pump is another common sign of water pump failure. If you find coolant leaking in the area around the water pump, you need to perform the following checks to confirm whether there is a problem with the water pump.
Check The Water Pump Seal
Water pumps usually have seals to prevent the coolant from showing signs of leaking. If the water pump seal is cracked or damaged, it may cause the water pump to leak.
Check The Water Pump Body
Check the pump body for signs of cracks or damage. A damaged water pump will be unable to effectively pump coolant into the engine to maintain the normal operation of the engine and other diesel engine parts.
The Coolant Is Dirty
When there is a problem with the water pump, the coolant can become dirty. This is caused by blockage or rust in the water pump impeller or pump body. To diagnose this problem, check the color of the coolant in the water pump. Normal coolant should be clear or slightly yellowish. If you find that the coolant in the water pump is cloudy or contains sediment, it may be caused by a bad water pump.
Cooling System Pressure Is Unstable
A bad water pump can also cause unstable pressure in the cooling system, which can cause a host of problems. You can tell by checking the coolant pumping speed and cooling system pressure gauge. You can check to see if the coolant is flowing at a normal rate. If you find that the coolant flow rate is unstable, the water pump impeller may be damaged. If you find that the pointer of the cooling system pressure gauge is unstable or fluctuates greatly, it is usually caused by a bad water pump.