What is the reason for the fluttering sound when accelerating the LaCrosse?
3 Answers
The reason for the fluttering sound when accelerating the LaCrosse is due to insufficient power steering fluid, or it may also occur when decelerating. In short, the sound changes with the throttle, and its volume varies accordingly. Damaged generator bearings, issues with the power steering pump, or water pump can all produce similar noises. The LaCrosse is a car launched by Shanghai GM, with dimensions of 5005mm in length, 1858mm in width, and 1500mm in height, and a wheelbase of 2837mm. In terms of appearance, this car adopts Buick's new family design language, featuring smooth and elegant body lines and a highly dynamic body proportion. The wing-type full LED automatic sensing headlights use advanced light curtain technology to create a more uniform and brilliant light curtain effect.
When I was driving my LaCrosse, I also encountered a whooshing sound when accelerating, which was really annoying. That time I went to the repair shop and asked the mechanic, who said it's quite common, possibly due to a slight exhaust leak or loose connections in the piping. It could also be that the belt near the engine has aged and makes a whooshing sound when rubbing. Additionally, if your car is turbocharged, the turbocharger might have something clogged or a seal broken, causing gas to leak and produce noise. Worn bearings in the drivetrain can also cause this, with increased vibration when you accelerate. I'd suggest you get it checked out sooner rather than later, as delaying could lead to more expensive repairs. You can first inspect the exhaust pipe connections for rust or looseness, but professional tools are needed for accurate diagnosis. Regular maintenance should include cleaning the intake pipes and air filters to prevent dirt buildup that could cause strange noises. Safety first—don't let this noise affect driving stability.
As a car enthusiast, I once experienced a loud roaring noise when stepping on the accelerator, which was quite frustrating. Looking back, it might have been an issue with the valves or pistons in the engine, or perhaps the air filter in the intake pipe was dirty and blocked the airflow. It could also have been caused by uneven tension or aging of the engine belt. The sound, resembling wind noise, might indicate an abnormality in turbo-related components. I recall the technician mentioning during repairs that it could also be related to the transmission bearings or drive shaft, which produce vibration noises when accelerating due to wear. It's advisable to first check the air filter and belt, and replace them if cracks are found. Don't wait until the noise becomes louder to address it, as it could damage the engine's core components. I've replaced these parts myself, saving a lot of money, but it's best to have a reliable shop check the voltage with a multimeter to ensure safety. Extra caution is needed before long-distance trips to prevent unexpected engine stalls.
