What are the reasons for difficult car ignition?

[VanLeila]

There are several reasons for difficult car ignition: 1. Severe carbon buildup on engine valves. In this case, the throttle body, intake manifold, and carbon deposits on the valves should be cleaned; 2. Weak spark plug energy; 3. Insufficient fuel pressure. Low fuel pressure in the low-pressure fuel circuit can cause the engine to require a second ignition attempt, as the first attempt fails while the low-pressure fuel circuit builds up pressure, allowing the second attempt to succeed; 4. Battery depletion. The solution is to replace the battery or jump-start the car using another vehicle. When encountering abnormal engine ignition, it is essential to promptly inspect and repair the issue to prevent subsequent faults caused by delayed treatment. Moreover, the majority of car starting difficulties stem from the owner's failure to perform regular and quantitative vehicle maintenance, leading to unnecessary losses.