What Causes a Cylinder Misfire?

[DiLorenzo]

The causes of a cylinder misfire include the following: 1. Ignition failure, requiring inspection of the ignition coil and high-voltage wires. 2. Check cylinder compression and the timing system. 3. Faulty crankshaft position sensor. 4. Fuel injection failure, caused by poor car wiring or insufficient fuel injection pressure. 5. Human error, such as operational mistakes during repairs. 6. Wear and aging due to untimely maintenance. 7. Engine malfunction, necessitating prompt repair or engine replacement. Engine misfires should be addressed at an auto repair shop. The troubleshooting for engine misfires often involves issues with the ignition system, and inspecting the spark plugs and ignition coils can usually resolve the problem.

[DiWalker]

Cylinder misfire is quite common in engines, and I've encountered it many times over the years of repairing cars. The causes mainly fall into several categories. First is the ignition system issue - aged spark plugs or excessive carbon buildup can prevent ignition, and faulty ignition coils may fail to deliver sparks. Next is fuel system failure, such as clogged fuel injectors unable to spray fuel or insufficient fuel pump pressure causing fuel supply interruption. Mechanical problems also contribute, like insufficient cylinder pressure due to valve leakage or piston ring wear. Sensor malfunctions are common too, with erroneous crankshaft position sensor signals disrupting ignition timing. When detecting such faults, it's crucial to get professional inspection promptly. Replacing components like spark plugs can save money, while prolonged delays lead to increased engine vibration and fuel consumption. Regular maintenance such as spark plug and air filter replacement helps prevent problems proactively.

[DerekDella]

My car also had a misfire issue in one cylinder before, and the engine was shaking badly. I checked it myself, and the main problem was the ignition coil. The aging coil caused unstable electricity delivery. Thick carbon buildup on the spark plugs is also common—just replace them. If the fuel system fails, like when the injectors get clogged with dirt and can't spray gasoline, cleaning is necessary. Loose or corroded wiring causing poor contact can also lead to this—check the connections. I recommend reading the OBD trouble codes first to locate the issue. Simple maintenance can prevent such problems, and better care can extend the engine's lifespan.

[LeAlice]

Experiencing a misfire in one cylinder with the engine light constantly on and the car shaking. The cause is usually worn spark plugs or faulty ignition coils. Sometimes, clogged fuel injectors or insufficient fuel pump pressure leading to inadequate gasoline supply can be the issue. Air leaks, such as poor cylinder sealing preventing compression of the air-fuel mixture, are also common. Prompt repair is necessary to avoid power loss and increased fuel consumption.