What Causes the Clicking Sound When Starting the Vehicle?
2 Answers
Reasons for the clicking sound when starting the vehicle: 1. Clutch malfunction; 2. Transmission failure; 3. Lower control arm issue; 4. Inner CV joint wear. Vehicle maintenance items include: 1. Replacing engine oil, oil filter, air filter, and fuel filter; 2. Inspecting the body and tires; 3. Checking the braking system; 4. Examining the chassis for damage. The benefits of vehicle maintenance are: 1. Ensuring the vehicle remains in optimal performance condition; 2. Enhancing vehicle efficiency and reducing wear on parts and tires; 3. Improving driving safety; 4. Preventing potential hazards caused by vehicle issues; 5. Reducing noise and environmental pollution; 6. Maintaining the vehicle's appearance and preventing damage.
Having run this auto repair shop for so many years, I've seen quite a few cases of cars making clunking sounds when starting off. Most of the time, it's an issue with the chassis components, particularly aging lower control arm bushings being the most common culprit. When the rubber cracks, it allows metal parts to collide, producing that clunking noise. Worn ball joints are another major cause—if the steering linkage ball joints are loose, you're bound to hear unusual noises when turning while starting off. Also, check the brake discs and pads; sometimes after washing the car, rust on the brake discs can cause a metallic scraping sound when they separate at the moment of starting. Don't overlook the driveshaft universal joints either—if they're insufficiently lubricated and worn, you'll feel a jerking sensation when transmitting torque. Loose chassis bolts, like an unsecured engine guard plate, could also be the issue. I recommend getting the chassis inspected on a lift first. Problems in these areas significantly impact driving safety, so the sooner they're fixed, the sooner you can drive with peace of mind.
