What are the reasons why the engine needs to crank several times before starting?
3 Answers
There are two main reasons why the engine needs to crank several times before starting. Weak ignition energy of the spark plugs: When spark plugs are not replaced in time after reaching their maintenance cycle, it can lead to a significant decrease in ignition energy, causing misfires in severe cases. Moreover, many current car models feature direct-injection engines, which place higher demands on spark plugs. Solution: Replace the spark plugs promptly. Engine carbon buildup: Carbon buildup in the engine can make ignition difficult and may also cause slight shaking at idle. Solution: Clean the throttle body, remove carbon deposits from the intake tract, and clean the fuel injectors to resolve the issue.
Lately, my car often requires multiple turns of the key to start, which is quite annoying. Common causes may include poor battery condition—if the battery is old and its voltage drops, the starter won't be able to turn the engine; the fuel system could also be a culprit, such as a slow fuel pump that doesn't deliver fuel to the right place during initial startup; ignition components like faulty spark plugs or ignition coils can also cause delayed ignition. This is especially noticeable in cold weather when the oil thickens and increases resistance. I recommend first checking the battery's health—a fully charged battery should read 12.6 volts or higher; if it's low, charge or replace it immediately. Clean the starter connections to prevent corrosion, and check that the fuel filter isn't clogged. Prevention is key—regular oil changes and battery checks can save a lot of hassle, so don't wait until problems arise to rush for repairs.
As a seasoned driver with over a decade of experience, I often encounter situations where the car requires multiple attempts to start. Most of the time, this is due to insufficient or aging battery power, preventing the starter from turning. Occasionally, issues with the fuel system, such as clogged fuel injectors, can cause inadequate fuel delivery during the initial startup. Problems with the ignition coil or spark plugs can also lead to delayed ignition. This phenomenon is more common in cold weather because the thicker engine oil increases startup resistance. I usually start by checking if the battery terminals are corroded; normal voltage should be above 12 volts. I also inspect the air filter to ensure it's not too dirty, which could affect air intake. Paying attention to unusual startup sounds can indicate starter wear. Proper maintenance can help avoid these issues, and I recommend replacing the battery annually or conducting a system check.
