Why Is My Car Shaking After an Oil Change? – Find The Cause

Your car is more than just a mode of transportation; it’s an intricate machine that requires regular maintenance to keep it running smoothly. One of the most crucial aspects of car care is an oil change. Regular oil changes lubricate your engine’s moving parts, reduce friction, and prevent overheating. However, sometimes, after an oil change, you might notice your car shaking, which can be alarming and unsettling. Understanding why this happens is essential to address the issue promptly and prevent further damage to your vehicle.

Understanding the Role of Oil in Your Car

Before delving into the reasons behind a shaking car after an oil change, it’s crucial to grasp the fundamental role oil plays in your vehicle. Engine oil acts as a lubricant, reducing friction between moving parts like pistons, bearings, and camshafts. This lubrication minimizes wear and tear, ensuring the engine operates efficiently. Furthermore, oil carries away heat generated by combustion, preventing overheating and potential engine damage.

Oil also plays a vital role in cleaning the engine. It picks up dirt, debris, and combustion byproducts, transporting them to the oil filter for removal. A clean engine runs smoother and more efficiently. Finally, oil helps seal the piston rings, preventing compression loss and ensuring optimal fuel combustion.

Possible Causes of Shaking After an Oil Change

While oil changes are generally routine maintenance procedures, several factors can contribute to a shaking car afterward. These issues can range from minor to serious, requiring varying degrees of attention.

1. Loose or Damaged Oil Filter

The oil filter is responsible for trapping contaminants from the engine oil. If the oil filter is not properly tightened during an oil change, it can become loose and cause oil leaks. A leaking oil filter can lead to a loss of oil pressure, resulting in engine shaking and potential damage. Additionally, a damaged oil filter may not function correctly, allowing contaminants to circulate in the engine oil, causing further problems.

2. Incorrect Oil Viscosity

Using the wrong type of oil for your car can lead to various issues, including shaking. Each engine has specific oil viscosity requirements, indicated in your owner’s manual. Viscosity refers to the oil’s thickness and its ability to flow at different temperatures. Using oil that is too thick or too thin can negatively impact engine performance. Thick oil may not flow freely, leading to insufficient lubrication and increased friction, while thin oil may not provide adequate protection against wear and tear.

3. Air in the Oil System

Air trapped in the oil system can cause a loss of oil pressure, leading to engine shaking. Air can enter the system during an oil change if the oil lines are not properly bled. This trapped air can disrupt the smooth flow of oil, causing fluctuations in pressure and leading to vibrations. Addressing this issue typically involves running the engine and allowing the air to escape naturally or using a specialized tool to bleed the system. (See Also: What Is Api Sl in Engine Oil? Essential Guide)

4. Worn Engine Components

While an oil change itself doesn’t cause engine wear, it can sometimes highlight existing problems. If your car is already experiencing wear and tear on components like bearings, piston rings, or connecting rods, the new oil might temporarily mask these issues. However, once the engine warms up, the increased friction caused by worn components can lead to shaking or vibrations.

5. Other Mechanical Issues

Shaking after an oil change could also be unrelated to the oil change itself. Other mechanical issues like a faulty engine mount, worn suspension components, or unbalanced tires can also cause vibrations. It’s essential to rule out these possibilities by having your car inspected by a qualified mechanic.

Addressing the Shaking Issue

If you experience shaking after an oil change, it’s crucial to address the issue promptly. Ignoring the problem can lead to further engine damage and costly repairs. Here’s a step-by-step approach to resolving the shaking:

1. Check the Oil Level and Filter

The first step is to check the oil level and the tightness of the oil filter. Ensure the oil level is within the recommended range in your owner’s manual. If the oil level is low, top it off. Then, carefully inspect the oil filter for any signs of looseness or damage. If the filter is loose, tighten it securely. If it’s damaged, replace it with a new one.

2. Consider the Oil Viscosity

Review your owner’s manual to confirm the correct oil viscosity for your car. If you suspect the wrong oil was used, consult a mechanic about draining the oil and replacing it with the appropriate type. Remember, using the correct oil viscosity is crucial for optimal engine performance and longevity. (See Also: How Often Should The Car Oil Be Changed? – Ultimate Guide)

3. Drive Carefully and Monitor the Shaking

After checking the oil level and filter, drive your car cautiously and observe the shaking. Note any changes in the vibration pattern, intensity, or engine sound. This information can help a mechanic diagnose the underlying cause more effectively.

4. Seek Professional Help

If the shaking persists or worsens, it’s essential to seek professional help from a qualified mechanic. They can perform a thorough inspection of your engine, oil system, and other components to identify the source of the problem. A mechanic can also perform necessary repairs or adjustments to restore your car’s smooth operation.

Conclusion

While an oil change is a routine maintenance task, encountering shaking after the procedure can be concerning. Understanding the potential causes, from a loose oil filter to worn engine components, is crucial for addressing the issue effectively. By following the steps outlined above, you can minimize the risk of further damage and ensure your car runs smoothly. Remember, regular maintenance and prompt attention to any unusual symptoms are essential for keeping your vehicle in optimal condition.

FAQs

Why is my car shaking after an oil change, even though the oil level is fine?

There are several reasons why your car might shake after an oil change even with a proper oil level. It could be due to an improperly tightened oil filter, air trapped in the oil system, or even worn engine components that are exacerbated by the new oil. It’s best to have your car inspected by a mechanic to pinpoint the exact cause.

Can using the wrong oil viscosity cause shaking?

Yes, using the wrong oil viscosity can definitely cause shaking. If the oil is too thick, it may not flow freely, leading to insufficient lubrication and increased friction. If the oil is too thin, it may not provide adequate protection against wear and tear. Always refer to your owner’s manual for the recommended oil viscosity for your car.

How do I know if air is trapped in my oil system?

Air trapped in the oil system can cause a loss of oil pressure and lead to shaking. You might also notice a rattling or knocking sound from the engine, especially when it’s cold. If you suspect air in the system, have it checked by a mechanic who can bleed the system properly. (See Also: Can Motor Oil Cause Skin Irritation? Common Culprits)

What should I do if my car shakes after an oil change and I suspect worn engine components?

If you suspect worn engine components, it’s crucial to have your car inspected by a qualified mechanic as soon as possible. Ignoring the problem can lead to further damage and costly repairs. A mechanic can diagnose the extent of the wear and recommend the appropriate course of action.

Can an oil change actually fix shaking issues?

While an oil change itself doesn’t fix shaking issues, it can sometimes temporarily mask underlying problems. If your car shakes after an oil change, it’s important to investigate the cause. In some cases, a simple fix like tightening a loose oil filter or bleeding the oil system might resolve the issue. However, if the shaking is due to worn engine components, a more extensive repair might be necessary.