Buick shocks and struts do not require replacing at specific mileage intervals like filters or spark plugs, but they do wear out and eventually have to be replaced.

When these parts wear out over time they can cause a rattle or a thump noise because the strut is coming in contact with the body of the vehicle since this sustaining mount has disintegrated and is not cushioning the strut anymore.

You need new shocks (and/or struts) if your original Buick quick strut is worn out, damaged or leaking. Leaking is easy enough to see (just look for oil or wetness on the outside of the shock or strut) as is damage (broken mount, badly dented housing, etc.). But wear is often more of a subjective thing to judge.

This easy bounce test is just that, bouncing on the front of the vehicle and watching to find out how many times the vehicle bounces up and down before the bouncing stops. Too much bouncing indicates worn Buick complete strut assembly. Basically, what you need to do is bounce the car up and down using your body weights a couple of times. When you discontinue bouncing and free the car, it should level off after one stroke. After releasing the vehicle, it ought to bounce one time and should come back to a level stand. If it continues to bounce after you let go more than one rebound act, then it shows the shocks needs to be changed. So that's how to tell when automotive shock absorbers should be replaced.

Make sure they take a test drive with you and hear the same sound you do. You want to make sure the work order you sign states the complaint properly not just "replace struts". You do this in case the noise is still present after the repairs so that you have it in writing what your original complaint was.  B2C | B2B2C