What Causes Difficulty in Ignition?
2 Answers
Introduction to the causes of car ignition difficulties: 1. Ignition difficulties caused by carbon deposits in the car: At idle, it may also be accompanied by slight shaking. Cleaning the throttle valve, intake tract carbon deposits, and fuel injectors can solve the problem. 2. Weak ignition energy from spark plugs: Some car owners, to save money, do not replace spark plugs after the maintenance cycle, which can lead to a severe drop in ignition energy and even misfires. Many current car models use direct-injection engines, which place higher demands on spark plugs. 3. Insufficient low-pressure fuel supply: Insufficient pressure in the low-pressure fuel line directly causes the engine to require a second ignition. The specific reason is that the first attempt fails because the low-pressure fuel line is building up pressure, while the second attempt succeeds. Components to check include the fuel pressure regulator, fuel pump, fuel filter, and internal fuel lines.
I've been driving for many years and have encountered several instances of difficulty starting the engine, which are usually caused by battery issues. For example, an aging battery with insufficient charge or corroded terminals can prevent the starter from turning. This is more common in winter because low temperatures reduce battery performance. It could also be a problem with the starter itself, such as worn-out carbon brushes or a faulty solenoid switch. Alternatively, ignition system issues, like excessive carbon buildup on spark plugs or faulty ignition coils, can prevent the air-fuel mixture from igniting. Insufficient fuel supply is another reason, such as a broken fuel pump or a clogged filter, which prevents fuel from reaching the cylinders. When facing such problems, I first check the battery voltage. If it's normal, I gradually inspect other components. Never force-start the engine, as it can easily damage it. Safety comes first, so timely repairs are essential.
