Water Pump Replacement Costīest places to order parts? See: 19 Best Online Auto Parts StoresĬost for replacement of the water pump vary greatly depending on the size, make, and age of the car, though you can expect to pay anywhere from $310 to $730 total. Air around the temperature sensor may cause erroneous readings. However, a faulty water pump can cause the temperature gauge needle to oscillate from normal to hot and vice versa.Ī bad radiator can also cause this to occur, but both issues should be repaired before the vehicle is driven again.Īn air bubble is another possible cause of fluctuations in coolant temperature. #5 – Inconsistent Temperature Gauge ReadingsĪ fully functional cooling system will keep the temperature gauge within normal limits at all times. This drippage stops when the vehicle engine shuts off. The latter are not caused by a bad water pump, but by another issue such as a faulty radiator.Ī leak from the weep hole of the water pump can indicate a faulty seal, as the weep hole prevents contamination of oil in the bearings with coolant and vice versa. when the car is running), and others can occur when the car is off. Some leaks only occur while the pump is turning (i.e. See Also: Causes of Transmission Fluid Leaks
Jeep cherokee coolant leaking from water pump crack#
This can happen when gaskets and seals in the water pump wear out and crack or break.Įven if a puddle of fluid is not observed, it’s worth taking a peek at the water pump itself (particularly if you notice any other symptoms) to see if it seems to have more debris on it than the other parts in the engine bay.Ī slow trickle of coolant can dry up on the outside of the water pump and solidify, or can even cause rust or corrosion (indicated by “pitting” in the metal). #4 – Fluid LeakĪ bright green or orange fluid pooled beneath the front of your car after it’s been parked for a few hours may be coolant. If you decide to replace the water pump yourself, it is highly recommended that you purchase a belt tension gauge to ensure the tension is correctly set to spec.Ī whining that increases in volume as the car accelerates should be inspected by a mechanic right away. One of the most common causes of premature water pump failure is an accessory belt that is too tight. If the offending bearings are in the water pump, it will need to be replaced entirely. #3 – Unusual SoundsĪn engine with a whining, buzzing, or squealing noise could have a loose accessory belt, caused by a loose pulley or worn out bearings. Unless it’s a small leak and you have the ability to add more coolant, have the car towed to the nearest mechanic for repairs. The cause of an overheated engine may be something different such as a bad radiator or faulty thermostat, but the result is the same. Driving with an overheated engine for long can cause irreversible damage. If you see steam coming from the front of the vehicle, pull over to the side of the road immediately. When the water pump is not working properly, coolant cannot circulate through the radiator to cool down so evaporation will occur. Steam billowing from the front of the vehicle while it’s moving or stopped can also indicate overheating. Note that the temperature gauge in some vehicles won’t move off center until engine temperatures have already reached dangerous levels, so be cautious if you notice the needle rise past its normal operating temperature position. This is usually indicated by an engine temperature warning light (or an icon with wavy lines in it) or elevated engine temperature reading on the dashboard.Ī functional water pump cools down the engine by circulating coolant, so a bad water pump will allow engine heat to build up to unsafe levels. The most obvious symptom of a faulty water pump is an overheated engine. Understanding how water pumps work to cool your vehicle is important, though it’s even more critical to know the signs of a failing or broken water pump in order to promptly address the issue. Symptoms of a Bad Water PumpĪn overheated engine can quickly lead to engine failure, a very costly consequence. When this process is doesn’t function as it’s supposed to, overheating will occur. It then flows into the radiator and back into the water pump, completing the cycle thousands of times a minute. This fluid is propelled by the pump blades, or vanes, into the cylinder head and engine block. The crankshaft drives the water pump’s impeller which circulates coolant through the engine, much like a heart pumps blood. When the engine of the vehicle is running, coolant from the radiator is brought into the center of the water pump. #5 – Inconsistent Temperature Gauge Readings.
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