What Causes the Rattling Noise in the Car Trunk?
3 Answers
Common causes of rattling noise in the car trunk include the trunk door not being properly closed and loose trunk screws. Below is a detailed explanation of the reasons for rattling noise in the car trunk: Trunk door not being properly closed: Avoid placing heavy objects in the car trunk, and always check if the trunk is properly closed before driving. If the trunk door is not properly closed, it can cause rattling noise in the car trunk. Loose trunk screws: Empty the trunk, remove the spare tire and tools, and check if the noise persists. If it does, inspect the trunk screws. Loose trunk screws can cause rattling noise.
I've encountered the trunk rattling issue several times and summarized a few common scenarios: The most easily overlooked is unsecured items in the trunk, especially water bottles and tool kits that make thumping noises when driving over bumps. If the trunk lid's latch is loose, it will creak when going over speed bumps. The spare tire in the spare tire well can be particularly annoying with clanking sounds if its bolts aren't tightened. Also, pay attention to aging rubber seals—the black sealing strip around the trunk edge—which can produce a hissing wind noise when cracked. The most troublesome issue is with chassis components, such as broken rear suspension springs or links, which can cause metal grinding sounds when turning. I recommend first emptying the trunk to test, then opening and closing the lid to listen for latch noises, and finally checking the chassis by getting under the car.
A few days ago, while driving my child to school, there was always a strange noise coming from the trunk. It turned out that the buckle of the stroller wasn't fastened properly. People often overlook these small details: for example, if the trunk divider isn't laid flat, it will make a flapping sound when going over bumps; if the wrench in the tool box isn't secured, it will knock against the inner wall; the bolts securing the spare tire underneath can loosen over time. Also, if the rear seat buckles aren't properly engaged, they can cause strange noises in the trunk area. Once, I thought it was a problem with the spare tire, but upon checking, I found that a rear seat belt buckle had fallen into the seat gap. The most embarrassing time was when a leaf got stuck in the door seal, making a high-pitched whistle-like noise on the highway. It's advisable to check the securing of items every time after loading, especially those with buckles.
