Causes of a Limping Car Engine at Low RPM and Their Solutions
A rough-running engine at low RPM disrupts driving comfort. This issue often causes panic among drivers, especially novice drivers. So why does this problem occur? What are the causes? And what is the right solution to address this issue? To answer all those questions, you need to pay attention to the following review.
Causes of a Rough-Running Engine at Low RPM
There are several factors that cause a car engine to run rough when the RPM is low. Here are the complete causes.
1. Issues with the injector or carburetor
A malfunctioning or damaged injector is a primary factor causing the engine to run rough at low RPM. As is known, the injector plays an important role in the process of injecting fuel into the engine's cylinder. This way, fuel can mix with air so that the engine's combustion process becomes optimal. If this component has issues, then the car will vibrate even if you haven't released the clutch when the RPM is low.
2. Compression issues
The second cause could be due to compression problems. Generally, the compression of an injection engine in the cylinder is in the range of 10 kpa to 12 kpa. If the car's compression is less than 10 kpa, the car will feel rough while driving. When you first start the car, the engine will vibrate until the vibration is felt in the cabin.
3. ECU (Engine Control Unit) issues
A problematic ECU is also a factor causing the engine to run rough at low RPM. As is known, the ECU plays an important role in controlling the overall performance of the car's system. From the injection system to the ignition system. For example, when the electrical current is not supplied to the coil, the injector's performance will stop, causing the engine to run rough during idling or at low RPM.
4. Engine mounting rubber is brittle
Brittleness or damage to the engine mounting rubber can also cause the car to run rough at low RPM. This component functions to dampen vibrations; if damaged, the engine's vibrations cannot be dampened properly.
5. Worn spark plugs
Spark plugs are important components of the car that play a crucial role in the success of the combustion process of the mixture and fuel. If this component is damaged, the combustion process becomes less optimal, causing the engine to run rough at low RPM.
In addition to the factors above, there are actually many other causes of a car engine running rough at low RPM. These include worn clutches, unbalanced propeller shafts, wear on the propeller connector, bent piston rods, wear on the wheel axle, and even wavy rims or tires.
How to Address a Rough-Running Engine at Low RPM
To address the issues above, you need to pay attention to the following methods.
1. Regularly clean the injector or carburetor
Regularly cleaning the injector or carburetor can prevent these components from becoming dirty or clogged. This way, the risk of the engine running rough at low RPM can be prevented as early as possible.
2. Regularly check and replace the ECU
Considering the very important function of the ECU, you should regularly check this component. Replace the ECU if necessary.
3. Regularly check and replace the engine mounting rubber
Regularly checking the condition of the engine mounting rubber can help you understand when the right time is to replace this component. Replace it immediately if the rubber is already brittle and cracked.
4. Regularly check and replace spark plugs
Next, you need to check the spark plugs and replace them if the spark produced is not adequate. Or when the engine is difficult to start.
5. Regularly service at a Daihatsu workshop
This method can be considered the best way to prevent and address a rough-running engine or other car problems. Because Daihatsu workshops have modern service equipment, genuine spare parts, and competent mechanics, so all problems with the car can be addressed well, accurately, and quickly.
