What Causes the Abnormal Noise from Car Doors When Starting the Power?

[SamanthaDella]

The reasons for abnormal noise from car doors when starting the power are as follows: Noise caused by door seals: After prolonged use, the door seals gradually age, causing friction between the seals and the car body. This can result in abnormal noise while driving. Solution: Replace the door seals. Noise caused by door hinges: Extended use of hinges can significantly increase friction, leading to abnormal noise. Solution: Apply lubricant to the hinges. Noise caused by door limiters: If door limiters are not regularly maintained, they can also cause abnormal noise. Solution: Perform regular maintenance on the door limiters.

[Selena]

With my 15 years of experience running a repair shop, door creaking during power startup is mostly due to issues with door hinges and limiters. Long-term door usage causes the lubricating grease to dry up, resulting in metallic creaking sounds. Another hidden cause is aging door wiring harnesses, where current passing through brittle insulation can cause buzzing noises. Last week, Old Zhang's Fit had to replace the entire wiring harness due to this. Here's a quick tip: spraying WD-40 on hinges only lasts about half a month—it's better to remove the hinge bolts and apply specialized grease. If a car with power seats suddenly makes noise, also check if the wiring under the seat is rubbing against the metal frame.

[Dante]

There are two common scenarios when repairing cars: one is a metallic clanking sound, which is most likely due to insufficient lubrication in the hinges; the other is a plastic-like clicking sound from thermal expansion and contraction, usually caused by loose door panel clips. Yesterday, a Civic with 50,000 kilometers on the odometer made a rattling noise from the passenger door panel as soon as it was powered on. Upon disassembly, it was discovered that a screw had been left inside the door cavity during the last repair at the 4S shop. Additionally, a reminder to new energy vehicle owners: if the abnormal noise is accompanied by sluggish door unlocking, it might be due to water ingress causing a short circuit in the control module. My Xpeng suffered from this issue before.

[Parra]

I've dealt with door squeaks myself a few times. When hinges rust, it's like joints lacking lubricant - spraying some liquid grease works best. If the weatherstripping ages, the door closing sound becomes muffled - applying rubber conditioner can help. I remember once when modifying audio system and removing door panels, forgetting to fasten the clips properly caused rattling sounds with every speaker vibration. Modified cars require special attention to wire securing - best to wrap harnesses with flocking tape. Always disconnect the battery negative terminal before working - don't ask how I know this.