The engine is the heart of your vehicle, so you have to take care of it without failure. When it comes to the oil change, you should note the recommended intervals and top it off at the right time. If your engine ran without oil now knocking, it is a situation to consider because a knocking engine can damage the whole unit. As a result, you have to spend a lot of money on repairs. In order to avoid this issue, you need to have a thorough knowledge. We have described the reasons plus solutions for a knocking engine in this blog post, so keep scrolling!
What does It mean If your Engine is Knocking?
If your engine is knocking, it indicates that the metal components, such as lifters and valves of the engine, do not get enough lubrication.
When there is a lack of oil, the upper cylinder head axis starts to issue a tapping or ticking sound. That’s why, you should change the oil at the correct intervals.
The components need lubricants to run smoothly. And also, if your vehicle’s air-fuel mixture ratio does not go on right, this sound can be heard.
As a consequence, the engine can burn the fuel randomly. And the cylinder wall and piston can be damaged too.
What Dangers Can Happen If you Start an Engine without Oil?
If you drive the vehicle without oil, there will be a few potential risks. First of all, the engine components can wear out quickly, the reason why, oil can lubricate the components and minimize the friction. When there is a lack of oil, friction can occur.
If you neglect the issue further, the vehicle can hesitate to start. It will stop, although there is enough fuel. Vehicle crashing can hardly be seen, but you must avoid engine damage.
Anyways, you will be able to run the vehicle for a few miles without oil, but it would always be better to maintain the right amount of oil level in your vehicle.
How Do you Fix a Knocking Engine?
Follow these instructions if you have a knocking engine.
- Check the oil level of your car and replace it without delay. You should buy the recommended oil type for your car model.
- If there are any oil leakages around the components, like the oil pan gasket, you will need to contact a professional to fix them. Then you can fill the oil in.
- If the unit contains a faulty oil pump, you have to replace it, too, because this component is responsible for providing proper oil pressure.
- Another important component is the oil pressure sensor. If it is a faulty one, you need to replace it too.
Suppose you are unable to identify what component the issue has, then get the service from a professional to diagnose and replace the faulty component.
What Immediate Steps should you Take If your Engine Starts Knocking Due to Oil Loss?
After you find out, there is less amount of oil, the immediate action should be to add enough oil. Then start the vehicle and run for a while to check if there is still a knocking sound.
Most of the time, the engine will run after you add the oil. However, if there is a leakage, the oil will no longer remain as usual. Then adding more oil will be useless.
The easiest way to fix this issue is to use a stop-leak additive. It can seal the leak, but you are encouraged to visit a mechanic and find a permanent solution as soon as you can.
How Much is it to Fix Engine Knocking?
The cost to fix a knocking engine can lie between $2000 to $3000. The price can vary according to the faulty part of the unit. If there is more than one faulty component, the cost will be higher. And the cost can vary depending on the car model you have.
Sometimes, you need to purchase parts from the original dealer. And there may be different charges in different service stations.
Anyways, remember that you can cut down the cost if you were able to identify the issue beforehand.
Should you Seek Professional Assistance or Repair for an Engine with Knocking Sounds?
The answer to this question depends on the exact issue of each car. If the problem is only the lack of lubrication, you do not need the assistance of a professional; you can check the oil level and fill it as usual.
If the knocking sound still exists after you fill the lubricant at the right level, there might be a faulty component within the unit. Especially the oil pump and oil pressure sensor should be checked.
What’s more, there might be oil leakages in the oil pan gasket or valve seals. Then you should seek professional assistance to diagnose and replace these components.
Will Adding Oil Stop Engine Knock?
Of course, if the case is the lack of lubrication, the knocking sound will vanish after you add the oil at the right level. But if the problem is a faulty component, adding oil will be a temporary solution. Oil levels can be lower due to oil leakages, so although you add oil at the right time, it will not last long due to leakages.
Can a Knocking Engine be Saved?
If you are able to fix the exact issue, a knocking engine can be saved. In general, a knocking engine can last about 6 months. After a few months, the engine will not be started at all. Then, you will have to pay for costly repairs. Thus, when you hear a knocking sound from the engine, do not ignore it.
How to Tell If Engine is Damaged from No Oil?
You can notice several symptoms if the engine has been damaged due to the lack of oil. Basically, oil pressure warning lights will start to illuminate to indicate this issue. And the engine oil can leak and make oil puddles. As we discussed so far, you will hear grinding or knocking sounds as well. In addition, the engine might perform poorly due to the malfunctioning components. Another sign is the heat of the unit. The engine will overheat because of no oil.
Watch this one,
Video Credits – Deutsche Auto Parts
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Jim is a motor mechanical engineer and the chief writer at Tipsymechanic.com. He possesses a decade of experience in the automotive industry and loves writing and blogging.