Question about 2001 Buick LeSabre

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Bad low speed rattle

I have a bad rattle at very low speed from the rear of my 2001 buick lesabre. I have checked the brake calipers,the control arms,the tie-rods,the bumper,the trunk,the springs,and the exhaust. I just replaced the air shocks as they were leaking. I still have the rattle. The wheels and wheel bearings are not loose. It is loud enough that you would think it would be simple to locate and repair. I can not duplicate the noise with the car jacked up or sitting still. Anybody ever run across this problem? There isn't a whole lot to the rear suspension of these cars. Any help would be greatly appreciated. I have been a mechanic for 30 years and can not locate the problem.

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You can also have someone drive and sit in the back seat and listen to which side it is on... Removing the seat might help you isolate the problem, while you listen. Wouldn't hurt to take stethescope or short hose along to listen. It probably is something simple as mentioned above, like myself when I couldn't find a large rattle... eventually found some loose tools in the spare tire well in the trunk. Hope this helps, Rick

Posted on Apr 18, 2009

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Never is complicated and nearby.
30 years over here as well.
Either a stone or something in the boot.
Wheel bearings not loose is not good enough.
Open the bearings and inspect for damage rollers or broken cage.
Problem must be right simple in front of you. Always is.
Same goes for those brakes, look at them again.
The secret is keeping at rest and going through it methodically.

And not all sounds from the rear are from there. Beware

Posted on Apr 18, 2009

  • astrid prieto Apr 18, 2009

    Bah, you rate a copycat better then a fellow in arms.

    copycat not even giving solution.

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