What would cause a misfire on cylinder 4?

Cylinder 4 misfire can be caused by a faulty or worn spark plug and faulty spark plug wires or coils. A spark plug terminal with a greenish color means that there might be a problem with the coolant. Problems with the ignition coils and cables can be causing the cylinder 4 misfire, too.

Is it safe to drive with a cylinder 4 misfire?

Driving with a misfiring cylinder is potentially dangerous. If you lose power while driving or a second or third cylinder goes out, this can cause you to get into a car accident, possibly injuring you and others around you.

What is the most common cause of a misfire?

The most common causes of misfires are worn, improperly installed, and mishandled spark plugs, malfunctioning ignition coils, carbon tracking, faulty spark plug wires and vacuum leaks.

What would cause a P0304 code?

A misfire from one or more cylinders can be caused by many reasons from a faulty ignition system, fuel system, or internal engine failure. Many times, P0304 occurs when there are worn out spark plugs, spark plug wires, or a faulty ignition coil.

What does it mean when cylinder 4 misfire?

One of the symptoms of a faulty cylinder is misfiring. If you suddenly see the trouble code P0304 or the cylinder 4 misfire detected, it means that cylinder 4 is not firing properly. This happens when your vehicle’s Engine Control Unit or the ECU detects that there is something wrong with it. The ECU is known as the brain of the engine.

What can cause an ignition system to misfire?

A typical modern ignition system contains a variety of components, including the control module, crankshaft position sensor, coil packs, wiring and, of course, the spark plugs. Issues with any of these parts can result in an engine misfire. 2. Air and fuel delivery problems

What causes a cylinder 4 to overheat?

Cylinder 4 misfire can be caused by a faulty or worn spark plug and faulty spark plug wires or coils. Spark plug terminals should maintain a sandy color but if it has blackened with soot, it means the combustion chamber is overheating. A spark plug terminal with a greenish color means that there might be a problem with the coolant.

What is the error code for a misfire?

When a misfire occurs in the engine, it will automatically set the check engine light and show a number. The last digit of the number signifies the specific cylinder at fault. For example, if it’s cylinder #1 that is having trouble firing, the Error Code will be P0301.