There is a thumping sound coming from the rear end of my '06 Grand Prix. It isn't a constant thump and sometimes it happens when I apply the brakes

16 costly car noises - Bankrate.com

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BankrateYou should not ignore certain thumping, banging, clicking and squealing sounds. These sounds often rear their heads or intensify whenever the driver takes ... Hissing or sizzling under the hood: Heard when the engine is first shut off, .... my rear right wheel makes a loud bang when switching from park to drive/reverse.

Sounds coming from drivers side front wheel - AnandTech Forums

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AnandTech
Dec 1, 2009 - 21 posts - ‎10 authors
Sounds coming from drivers side front wheel The Garage. ... slightly left, I get a slight metalish-squealing sound coming from the drivers side front wheel area. ... but before I start the wild and expensive goose chase of bringing it to mechanics I ..... Those twoloud clunks when turning hard right give it away.

Ford Explorer Questions - Thumping from front end - CarGurus

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CarGurusDec 22, 2009 - Thumping from front end - I have a hard thumping noise coming from ... without problem then I'll take a turn or something and it will start. ... I just recentlystarted having a rubbing and thumping and squeaking noise in the right front sidewhen driving ... Thumping sound coming from under the truck 4 answers.

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ABS thinks you are skidding, and is applying the brakes on and off. Likely one of the ABS sensors is bad.

maybe your calipers are sticking

Usually this is caused by a binding blend or mode door. The actuator keeps trying to move it and can't. Locate the exact source of the noise. Then disconnect the actuator and try opening and closing the door by hand.

Have you had this listened to or driven by a front end repair person, they are very good at noises, i think this is a worn part that causes this, just can't remember which one, the dealer is your best choice here.

sounds like ball joints raise front end up check al conections in relation to front end .

probably the u joints in your front drive axles. couls also be the track bar.

could be that you have a broken belt in one of your tires..this will bake a thumping as you drive, the faster you drive the more noticeable it is....check your tires...may need to replace one.

It does sound like one of the universal joints. If you can raise the back end off the ground engage gear and the faulty u/v joint will make the wheel jump. This will let you know which side it is

sounds like bent axle? any accidents or heavy off roading