What Causes the Buzzing Noise Inside the Pajero While Driving?
2 Answers
The reasons for the buzzing noise inside the Pajero while driving are as follows: 1. Loose items in the storage compartments or glove box, or loose wiring from aftermarket electronic devices. Disorganized items in the storage compartments or glove box, even the nose pads of sunglasses in the glasses case can rattle. You can use your fist to tap on certain areas inside the car. If a noise occurs when tapping a specific area, check the surroundings for any loose items. Remove or secure them one by one and tap again to confirm. 2. The noise persists regardless of speed, and its frequency increases with speed. This is mainly related to the drivetrain components, such as tires or CV joints. You can visit a repair shop and use a lift to identify the cause. 3. The noise is irregular and unrelated to speed, sounding like tapping from outside the car. In this case, pay attention to the door frame area, organize loose items in the trunk, and check for debris under the front windshield. Also, check if there are plastic bags or other debris hanging under the car. Regularly clean the engine compartment to keep the floor clean. 4. When idling, standing in front of the car reveals a "whooshing" noise synchronized with the engine RPM. If you have replaced the alternator pulley or if the car has over 80,000 kilometers without a pulley replacement, the cause is simple—it's the pulley. Visit a repair shop to check the alternator pulley, as it may be aging or a substandard replacement.
I've encountered this buzzing noise issue several times when driving my Pajero! The most common cause is tire problems, like uneven wear or low pressure, which makes it sound like flies circling around, especially noticeable on highways. Another issue could be worn wheel bearings—quite troublesome, producing creaking sounds along with vibrations that get louder the faster you drive. A loose or unbalanced driveshaft can also cause resonance. I've also experienced situations where the fan blades were bent or the roof rack wasn't secured tightly, causing a buzzing noise when the wind blows. I recommend first checking the tire tread and pressure yourself. If everything seems fine, take it to a repair shop to inspect the bearings—don't delay, as it's unsafe. After replacing the bearings, my car became much quieter. A reminder to everyone: regular maintenance helps prevent such faults.
