Car Shakes When Starting Then Runs Fine [FIXED]

When you first start your car, it might shake, but once it gets going, it runs smoothly. There are several reasons why it happens. Let’s take a closer look at these possible causes and see what effect they might have on your car:

Your Car Shakes When Starting Then Runs Fine can be caused by several factors related to the way the engine works. This unsettling feeling may result from a malfunctioning engine, plugged fuel injectors, worn spark plugs, low fuel pressure, or a damaged motor bearing.

Once the engine warms up and begins to work at its best, these problems usually go away, resulting in a smoother ride. A cold start shakes a car for a variety of reasons that will be explained in this article. To ensure your vehicle works effectively and constantly, you must address these underlying issues.


Why Your Car Shakes When Starting: Reasons To Know

1. Engine Misfire

Engine Misfire

The fuel in cylinders of an engine burns too slowly when there is a misfire in the combustion process. This fault may cause a short-lived shaking sensation when the car is started. As soon as the engine starts working, it will disappear.

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2. Lagging Engine Parts

Exhaust systems, heat shields, and engine covers that aren’t tight in the engine bay can cause light movements, which can initially feel like shaking.

3. Spark Plug Problems

Spark Plug Problems

Spark plugs are responsible for starting the engine’s spark. These pieces may not generate the spark needed for proper burning if they become dirty or old. It could cause shaking when the engine starts, but once it reaches working temperature, it will stop.

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4. Low Fuel Pressure

Low Fuel Pressure

Keeping the engine running well requires the right amount of fuel pressure. The engine can shake briefly if there is not enough pressure when it starts, but this goes away as soon as it is running.

5. Irregular Timing

Optimal engine performance depends on accurate timing. Worn-out belts or chains can lead to engine shaking or rough running when the spark explodes.

6. Starter Motor Problems

In the event that the key is turned, the starter motor will turn on the engine. Until the engine starts correctly, this part might cause light shaking if it cannot connect to the engine. The shaking usually stops as soon as the engine starts.

7. Clogged Fuel Injectors

Clogged Fuel Injectors

It is very important for fuel injectors to deliver the correct amount of fuel to the engine. During start-up, these parts can become blocked, interrupting the fuel flow, which can cause initial problems that resolve as the engine warms up and compensates for the uneven fuel supply.

8. Not Enough Oil

Not Enough Oil

By lubricating important parts, engine oil prevents them from sticking. It is possible for the engine to shake or make noises when the oil level is too low, resulting from friction between engine parts.

9. Damage to the Engine

Insufficient oil or lubrication can damage internal parts of an engine, causing the engine to shake or vibrate irregularly when you start it.

10. Auto Parts That Are Worn Out

A car’s engine is kept stable by its motor mounts. It is possible for these parts to wear out over time, causing the engine to move too much during start-up. As a result, the engine shakes noticeably until it is stable again.

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How To Fix Car Shaking Problems?

How To Fix Car Shaking Problems?
  • Power It Up: Installing a jump starter or buying another battery will help you recover your vehicle’s battery if it dies.
  • Oil Check: Make sure the oil level is sufficient before starting the engine by turning the key a few times. As a result, the engine is more efficient.
  • Check the fuel level: The fuel level in the tank may cause the engine to shake or not start; make sure the tank has enough fuel.
  • Check for Engine Problems: A diagnostic tool can help you determine if something is wrong with your engine. With that handy tool, you’ll be able to discover what’s shaking.

These steps may help you determine and resolve the cause of car shakes when you start and stop your vehicle, improving the comfort and enjoyment of your drive.


A guide to starting a shaky engine

A good deal of time and effort must be put into determining what causes the car to shake. It is best to prevent car issues, as it is with other problems. You can avoid problems by following these tips.

  • The engine must be kept clean and all bolts and screws must be secured.
  • Make sure that all gaps and cracks are sealed as soon as possible.
  • If you find any problems with the engine, please feel free to inspect it.
  • The performance of the engine should be closely monitored if the spark plug explodes.

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Conclusion

The engine mounts or gearbox mounts on a car that shakes when started are usually worn out. Your vehicle’s other parts may be the problem if it isn’t this part. When you first notice the shaking, keep in mind that it may be hidden during daily engine use. However, if these problems are not corrected right away, they can worsen, leading to greater consequences.

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