Loud Thumping From My Rear Right Corner

[Mohsen]

Hey guys. Yesterday I was driving around, parked the car and came back. Drove for 5 mins when I started to hear a loud knock/thump from my rear right corner. Almost as if my tyre is flat (and it isn't) the noise only comes when in not on the throttle but is silent when I'm braking it on the throttle..

Whats going on?

[GTSBoy]

Did you run over a dwarf carrying a hammer?

[Mohsen]

Lol, I ran over a midget monkey riding a possum

[blind_elk]

the noise only comes when in not on the throttle but is silent when I'm braking it on the throttle..

Translation / clarification please

Meantime, check:

wheel nuts loose

wheel bearing shagged.

[Mohsen]

Nuts are tight, when I'm on the throttle there is no sound, car still drives normal but when I'm coasting it and now, even braking, it makes a continuous thump..

[Mohsen]

Anybody?

[89CAL]

CV's?

Diff?

Can you get it on a hoist to check out suspension parts to rule that out?

So is it a constant repetative thump or just a single thump when backing off?

[Mohsen]

i had a look under the car today, the half shaft on the diff side looks stained. all the sussy parts are fine

its a continuous knock when im not on the throttle..

[AngryRB]

+1 for wheel bearing, have you checked the wheel for movement side to side?

just on the weekend i had a wheel bearing go on a boat trailer, when your accelerating the wheel seems to straighten up, but when breaking or cuising the the wheel wobbles and that makes the bang noise,

try throwing some water on the wheel after a drive and if you get a big cloud of steam then you know its about ready to fly off the car, i think you might be close if your hearing that noise anyway.

Edited January 3, 2012 by SliverS2

[GH05T]

Possibly drive shaft?

[89CAL]

+1 for wheel bearing, have you checked the wheel for movement side to side?

just on the weekend i had a wheel bearing go on a boat trailer, when your accelerating the wheel seems to straighten up, but when breaking or cuising the the wheel wobbles and that makes the bang noise,

try throwing some water on the wheel after a drive and if you get a big cloud of steam then you know its about ready to fly off the car, i think you might be close if your hearing that noise anyway.

Be careful of doing this if your brakes are hot, not good for them

Possibly drive shaft?

CV's, Handbrake on and put the drivetrain under load (first gear, slip clutch) listen for clicks

[nobby]

Try shock rubbers

[nobby]

try the shock rubbers