Car Engine Shakes When Turned On

What Causes a Car Engine to Shake When Turned On?

There are a few different things that can cause a car engine to shake when it is turned on. Some of the most common causes include:

• Spark plugs that are not firing properly. When the spark plugs are not firing properly, it can cause the engine to misfire. This can lead to a shaking sensation.
• A vacuum leak. A vacuum leak can allow air to enter the engine, which can cause the engine to run lean. This can also lead to a shaking sensation.
• A fuel injector that is not working properly. A fuel injector that is not working properly can cause the engine to run rich or lean. This can also lead to a shaking sensation.
• A bad engine mount. An engine mount is responsible for holding the engine in place. If an engine mount is bad, it can allow the engine to move around, which can cause a shaking sensation.
• A worn serpentine belt. The serpentine belt drives a number of accessories on the engine, such as the alternator, power steering pump, and air conditioning compressor. If the serpentine belt is worn, it can slip, which can cause the engine to shake.

How to Fix a Car Engine that Shakes When Turned On

The best way to fix a car engine that shakes when turned on is to determine the cause of the shaking. Once you know the cause, you can then take steps to fix the problem. Here are some tips for fixing the most common causes of a car engine that shakes when turned on:

• Spark plugs. If the spark plugs are not firing properly, you can replace them. Spark plugs are relatively inexpensive and easy to replace.
• Vacuum leak. If there is a vacuum leak, you can use a smoke machine to find the leak and then repair it. Vacuum leaks can be caused by a number of things, such as a loose hose or a cracked gasket.
• Fuel injector. If a fuel injector is not working properly, you can have it cleaned or replaced. Fuel injectors can become clogged over time, which can prevent them from delivering the correct amount of fuel to the engine.
• Engine mount. If an engine mount is bad, you can replace it. Engine mounts are relatively inexpensive and easy to replace.
• Serpentine belt. If the serpentine belt is worn, you can replace it. Serpentine belts are relatively inexpensive and easy to replace.

Conclusion

If your car engine is shaking when turned on, it is important to determine the cause of the shaking and then take steps to fix the problem. By following the tips in this article, you can help to get your car running smoothly again.