5 Symptoms of a Bad Oil Pump in Your Car

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The job of an oil pump should be self-explanatory. Every internal combustion engine needs an oil pump because it allows oil to circulate throughout the components of the engine so that they can be lubricated. An oil pump generates the right amount of pressure to keep the oil moving steadily like this. In addition, the oil is responsible for keeping these moving components cooled down so that they don’t overheat the engine. Therefore, if you were to have a damaged or worn out oil pump, it would basically be taking the lubricating properties out of the engine. Then you would have all kinds of problems associated with the engine and the functionality of the vehicle. This could lead to a lot of repair expenses if you let the problem persist for too long.

Top 5 Bad Symptoms

It is better to replace the oil pump as soon as you realize it has gone bad. This will save you the most money in the long run. Below are the top 5 symptoms which will help you figure out that you have a bad oil pump.

Reduced Oil Pressure – One of the first symptoms that you will experience is reduced oil pressure in the engine. This makes sense because the oil pump is what creates the necessary pressure so that the oil can circulate throughout the engine in the first place. If you take that pump away, then you are taking the pressure away too.

Whining Sounds – A healthy oil pump will never make any noises. But if you have an oil pump in bad condition, you can expect it to make strange whining sounds on some occasions. These noises may become apparent as the oil pump is in the early stages of going bad. If your car remains in an idle position, you will even hear these noises too. The cause of the noises is likely from the worn-out gears within the oil pump. You won’t be able to just repair these gears, which means you’ll need to replace the entire pump.

Valve-Train Sounds – The internal combustion engine has numerous valves which are mechanically controlled by a valve-train system. The components of the valve-train include the valve guides, pushrods, and seals. It is important that all these components stay lubricated from the oil if they are going to function properly. So, if you have a bad oil pump, these components will not receive the lubrication they need. The friction created in the valve-train will result in strange noises being made from them.

Hydraulic Lifter Sounds– The valve-train depends on hydraulic lifters to function properly. Like the valve-train itself, the hydraulic lifters need to be lubricated thoroughly with oil too. A bad oil pump will not allow the hydraulic lifters to receive the proper amount of lubrication because there won’t be enough pressure to send the oil to them. This will create loud noises from the lifters while wearing them out faster too. If you let this occur for too long, you will end up needing to replace your hydraulic lifters in addition to your oil pump.

Read also: 5 Symptoms of a Bad Camshaft Position Sensor

Overheating Engine – The worst symptom out of all these would be an overheated engine. As your entire engine continues to lack the proper amount of lubrication that its components need, there will be a massive amount of heat building up inside the engine. All those rotating components which rub together and create friction will continue generating lots of heat. There will be no oil to cool down these components if the oil pump is not working. On your dashboard, you will see the temperature gauge’s needle move toward the red zone. This indicates that your engine is overheating. You’ll need to address this issue fast or else your entire engine may be permanently damaged. Then you will need to pay thousands of dollars to replace it.

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