What Causes the Unusual Noise at the Moment of Successful Ignition?
2 Answers
Here are the main reasons for an unusual noise at the moment of successful ignition in a car: 1. Incorrect gear shifting and clutch operation: The gear is engaged, and the clutch is not fully depressed. 2. Starter motor slipping: The car's starter motor slips at the moment of ignition. 3. Prolonged ignition time: Extended ignition time causes the flywheel to hit the starter gear upon successful ignition. 4. Belt slipping: During ignition, belt slipping may also cause vehicle noise, but this usually disappears once the engine belt speed stabilizes. Note: It is recommended to have the above issues checked at a repair shop as soon as possible to avoid affecting the vehicle's lifespan.
I've been driving for thirty years and often encounter a clicking sound at the moment of ignition. Last time, my old car had the same issue, and I almost thought it was about to break down. Upon closer inspection, it turned out to be a worn starter gear—this component is responsible for driving the engine during ignition. If it doesn't mesh properly with the flywheel ring gear or has an aged internal spring, it can produce a noise similar to gear slippage when the engine starts. I immediately took it to a repair shop for inspection, and replacing the starter fixed the issue. Thankfully, I didn’t delay, or it could have led to damage to the entire starting system. By the way, unstable voltage can also cause unusual noises, especially with old batteries or loose wiring connections. So, during regular maintenance, it’s good to test the battery condition and check cable tightness to prevent problems. If you encounter this situation, don’t panic, but get it diagnosed by a professional as soon as possible.
