Car Shaking When Starting Engine: Causes and Solutions

If your car shakes when you start the engine, it can be a sign of a problem. There are several potential causes for this issue, and it’s important to identify the cause so that you can get it fixed.

Causes of Car Shaking When Starting Engine

Engine Misfiring

One of the most common causes of car shaking when starting the engine is engine misfiring. This occurs when one or more of the cylinders in your engine is not firing properly. This can be caused by a variety of factors, such as:

• Faulty spark plugs
• Worn ignition coils
• Leaking fuel injectors
• Vacuum leaks

Loose Motor Mounts

Another potential cause of car shaking when starting the engine is loose motor mounts. Motor mounts are responsible for holding the engine in place, and if they become loose, the engine can move around excessively when it is started. This can cause the car to shake.

Worn CV Joints

CV joints are responsible for transmitting power from the transmission to the wheels. If they become worn, they can cause the car to shake when starting the engine, especially when turning.

Faulty Alternator

The alternator is responsible for generating electricity for the car’s electrical system. If it becomes faulty, it can cause the car to shake when starting the engine, as it will not be able to provide enough power to the ignition system.

Low Fluid Levels

Low fluid levels, such as low engine oil or transmission fluid, can also cause car shaking when starting the engine. This is because the fluids help to lubricate the engine and transmission, and if they are low, the engine and transmission will not be able to operate smoothly.

Solutions for Car Shaking When Starting Engine

The solution to car shaking when starting the engine will depend on the cause of the problem. Once the cause has been identified, you can take the following steps to fix it:

Engine Misfiring Fix

If engine misfiring is the cause of the shaking, you will need to replace the faulty spark plugs, ignition coils, or fuel injectors. You may also need to check for vacuum leaks and fix them.

Loose Motor Mounts Fix

If loose motor mounts are the cause of the shaking, you will need to tighten them. You may also need to replace them if they are damaged.

Worn CV Joints Fix

If worn CV joints are the cause of the shaking, you will need to replace them. This is a job that is best left to a mechanic.

Faulty Alternator Fix

If a faulty alternator is the cause of the shaking, you will need to replace it. This is also a job that is best left to a mechanic.

Low Fluid Levels Fix

If low fluid levels are the cause of the shaking, you will need to add the appropriate fluid to the car. Be sure to check the owner’s manual to determine the correct type and amount of fluid to add.

Conclusion

If your car shakes when you start the engine, it is important to identify the cause of the problem and get it fixed. By following the tips in this article, you can help to ensure that your car runs smoothly and safely.