Tips Sahabat

3 Causes of Car RPM Needle Stopping & How to Fix It

09 April 2025
3 Penyebab Jarum RPM Mobil Mati & Cara Memperbaikinya

Have you ever experienced the problem of the car's RPM needle suddenly dropping? If so, do you know the cause of the car's RPM needle dropping? To find out, read the post below until the end!

What is RPM in a car? RPM (Revolutions Per Minute) is one of the car components that has a very crucial function. This component serves as an indicator measuring the engine's rotational speed in the car. 

The indicator in this component is in the form of a needle that will move according to the speed of the car while the engine is running. Therefore, this component must be well-maintained because if it is damaged, it can endanger the safety of the car driver. 

So what are the causes of the car's RPM needle dropping suddenly? How can this component be repaired? For more details, pay attention to the review below. 

Causes of the Car RPM Needle Dropping

There are 3 causes of the car's RPM needle dropping, including:

1. Electrical Problems

The main cause of the car's RPM needle dropping is due to problems in the electrical system in the car's dashboard or inside the engine. Basically, the RPM indicator panel is closely related to the car's electrical system. If there are problems in the car's electrical system (short circuit or overload), then the indicator panel will also go dead.

2. Problems with the Indicator Panel

The second cause is due to problems in the indicator panel. As you know, the panel in the car's dashboard consists of the RPM needle panel (tachometer), speedometer, and odometer. When there is a problem in one panel—whether it is the speedometer or another panel—it can cause the car's RPM needle and other indicators to be unstable or even go dead.

3. Problems with the Tachometer (RPM Calibration)

A tachometer (RPM calibration) that is not synchronized can cause the RPM indicator needle to be inaccurate and unstable. You can notice this when you see the RPM needle fluctuating while the car's speed is stable. 

After you know the causes, here are some ways you can do if you experience the problem of the car's RPM needle dropping.

Read Also: What is the Standard Normal RPM for Automatic Cars? Find Out Here!

How to Fix the Car RPM Needle Dropping

After knowing some causes of the car's RPM needle dropping, here are the solutions:

1. Check the Car's Electrical System and Replace Damaged Components

The first thing you can do is check the car's electrical system. If you are not skilled, you can ask for help from a qualified technician. The technician can thoroughly check the car's electrical system and identify damage caused by short circuits, electrical overload, or worn-out components.

2. Reset the Calibration

When you find that the RPM calibration is problematic, you need to reset the RPM with a tachometer until the RPM needle is in the correct position and does not fluctuate. Make sure to ask for help from a qualified technician so that the RPM calibration results are synchronized and accurate. This way, you can read the tachometer according to your car's speed.

Read Also: Causes of Car Engine Vibrating at Low RPM, Let's Find Out!

3. Replace the Damaged Panel

If the problem is caused by damage to the indicator panel, then replace the damaged panel with a new one so that the car's RPM needle can light up again and function optimally.

Make sure to take your car to a workshop or Daihatsu dealer immediately if you experience this problem so that the issue of the car's RPM needle dropping can be handled by a qualified technician.

Avoid letting this problem persist for too long, as when changing the car's transmission gears, you need the RPM needle to remain active for the gear changes to be correct. Incorrect gear changes can lead to new problems such as overheating. 

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