What Causes the Sizzling Sound When Starting a Car?
3 Answers
Here are the reasons for the sizzling sound when starting a car: 1. Loose engine mount bolts causing improper installation of engine supports; 2. Loose or aged belts. Generally, you can attempt to fix this issue yourself. (1) For loose engine mount bolts, you can locate and tighten the specific screws yourself; (2) For loose or aged belts, you can replace them with a new one. 3. If the car hasn't been started for a while, the oil will return to the oil pan, resulting in less oil in the valve chamber. The lack of oil for sealing and lubrication in the valve chamber causes the sizzling sound heard from the bottom of the car when it is first started.
After driving for so many years, the sound I fear the most when starting the car is that high-pitched whining noise, which usually indicates an issue with the starting system. The most common cause is insufficient battery power, making it difficult for the starter to turn over and producing that sharp sound. An aging battery or forgetting to turn off the headlights or air conditioning after shutting down the engine can drain the battery. Loose or corroded battery terminals can also cause poor contact, leading to that whining noise. Problems with the starter itself are not uncommon either, such as a faulty solenoid switch or worn internal gears. To address this, first use a multimeter to check the battery voltage—if it's below 12 volts, it's time to recharge or replace the battery. Ensure the terminals are tight and clean. Avoid forcing the ignition when you hear the whining noise, as this can easily burn out the starter or completely drain the battery, disrupting your trip. I recommend regularly checking the battery's condition and paying attention to heat dissipation during hot summers to prevent most issues and extend the lifespan of components. If the noise persists after trying these steps, it's best to visit a professional repair shop to avoid the hassle of breaking down on the road.
Haha, I just encountered this issue recently! The annoying buzzing sound when starting the car is often due to a weak battery. Low power makes the starter motor whine. Don't underestimate this small noise—it can lead to failure to start over time. DIY solutions can help: pop the hood and check if the battery terminals are tight; use a wrench to secure any loose connections. If there's green corrosion on the battery terminals, clean them with a wire brush. Use a multimeter to measure the voltage—if it's below 12.5V, consider charging or replacing the battery. A faulty starter motor can also cause this noise, but if the car starts after the buzzing, it's not a major issue. Remember, don't attempt continuous starts when hearing the buzz to protect the circuit. I usually check the starting system during regular maintenance and avoid playing car audio for too long after turning off the engine—it gives me peace of mind.
