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Why does the LaCrosse make a noise when starting?

2 Answers

PaigeLee

07/24/25 8:36pm

LaCrosse makes a noise when starting due to an issue with the rear knuckle. Below is relevant information about the LaCrosse: 1. Vehicle Design: The Buick LaCrosse adopts Buick's latest family design language, featuring smooth and elegant body lines with a highly dynamic body proportion. The wing-type full LED automatic sensing headlights utilize advanced light curtain technology to create a more uniform and brilliant light curtain illumination effect. With a body length of 5026mm, width of 1866mm, height of 1462mm, and an ultra-long wheelbase of 2905mm, it provides a spacious driving and riding space for mid-to-large premium sedans, offering a comfortable and free riding posture. The interior boasts 29 practical storage spaces, conveniently accommodating commonly used devices and handbags. 2. Powertrain: The 2021 Buick LaCrosse family is equipped with two sets of driving systems, combining powerful performance with excellent fuel economy, and all models meet the "China 6b" emission standards. At the same time, different power combinations will meet the diverse needs of users with more abundant choices and further enhance the competitiveness of the Buick LaCrosse in the mid-to-high-end car segment.

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BrodyMarie

08/11/25 11:13am

I usually enjoy studying car details and have noticed that the LaCrosse may produce abnormal noises during startup, which could be caused by loose suspension components or vibration noises from aged rubber parts. When the vehicle starts, the instantaneous power transmission subjects the chassis components to impact, and if the suspension ball joints or bushings are worn, it can result in a 'creaking' sound. Additionally, the automatic transmission's clutch might stick in cold temperatures, emitting a brief friction noise. It's advisable to gently rock the front of the car after parking to check for any looseness and promptly visit a workshop to inspect the suspension and transmission lubrication. Long-term neglect could lead to reduced handling performance or even increased wear risks, so don't delay until the problem worsens. I make it a habit to personally check the tightness of the chassis bolts during every maintenance session.

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