Author Topic: Weird knocking  (Read 3907 times)

Offline apie2004

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Weird knocking
« on: 10 December 2010, 14:04 »
As described above, my mk2 makes a weird knocking when accelerating hard and coming off the throttle hard. Any ideas?

Cheers

J

Offline rob.043

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Re: Weird knocking
« Reply #1 on: 10 December 2010, 14:12 »
The prostitute in the boot isnt dead.

Offline rob.043

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Re: Weird knocking
« Reply #2 on: 10 December 2010, 14:15 »
Where abouts is the noise coming from, front, rear, under the bonnet? Can you be more descriptive, is it a dull thud or more metallic and clinky? Of course all the se questions mean i have no idea! What engine do you have (not that it makes much difference)?

Offline apie2004

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Re: Weird knocking
« Reply #3 on: 10 December 2010, 14:41 »
Under the bonnet, sounds likes its not far from my left foot (I think) its  like a metallic knock but it doesnt happen all the time.it's an 8v gti

Offline Ben Lessani

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Re: Weird knocking
« Reply #4 on: 10 December 2010, 14:49 »
The prostitute in the boot isnt dead.

lmfao :D :D :D

Quote from: Meeeeeeeeeeeeeeeeee
Knocking at the front could be a few things. Make sure the suspension strut bolts are tight, all 4 ball joint bolts, wheel nuts and hub nut.

Track rod ends
When you hear a knock when wiggling the steering wheel when stationary. If the car is jacked up, its not as obvious to find.

Wheel bearing
Turn a corner at speed (40 mph), if you are turning left and you hear a noise - its the right wheel bearing, turning right and its your left wheel bearing.

Jack the car up, grab it left and right and wiggle it and check for play. If there's play and a noise as above, odds are its a wheel bearing.


Ball Joint
Grab the wheel top and bottom and wiggle, have a friend with a torch look at the ball joint when wiggling and the play is pretty obvious.

CV Joint
Knocking/grinding at low speeds

Top Mounts
No idea, I guess I'd find out by process of elimination from the above?

Offline Sam

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Re: Weird knocking
« Reply #5 on: 10 December 2010, 14:52 »
I had the same, ended up with the big end sh!tting itself  :cry: do yourself a favour this weekend and do an oil change but take off the sump and check for little bits of metal. If there are any stop driving and if you know what your doing get stripping or if not get her to a garage. If there aren't it has only cost you £25 max in oil and a bit of your time where if your big end fails its new engine time  :undecided:


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Offline apie2004

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Re: Weird knocking
« Reply #6 on: 10 December 2010, 14:58 »
I had the same, ended up with the big end sh!tting itself  :cry: do yourself a favour this weekend and do an oil change but take off the sump and check for little bits of metal. If there are any stop driving and if you know what your doing get stripping or if not get her to a garage. If there aren't it has only cost you £25 max in oil and a bit of your time where if your big end fails its new engine time  :undecided:

It feels like its more suspension/drive shaft (cvs etc) to me. I am changing wishbones, ball joints and track rod ends this weekend anyway, that will narrow it down.

Cheers Guys

Offline lewis1641

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Re: Weird knocking
« Reply #7 on: 10 December 2010, 15:33 »
could be engibne mounts if it happens under braking/acceleration

Offline clipperjay

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Re: Weird knocking
« Reply #8 on: 10 December 2010, 15:41 »
Nah I prefer the dead prostitute! Not that they aren't all dead inside anyways  :lipsrsealed:

Offline Sam

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Re: Weird knocking
« Reply #9 on: 10 December 2010, 16:07 »
I had the same, ended up with the big end sh!tting itself  :cry: do yourself a favour this weekend and do an oil change but take off the sump and check for little bits of metal. If there are any stop driving and if you know what your doing get stripping or if not get her to a garage. If there aren't it has only cost you £25 max in oil and a bit of your time where if your big end fails its new engine time  :undecided:

It feels like its more suspension/drive shaft (cvs etc) to me. I am changing wishbones, ball joints and track rod ends this weekend anyway, that will narrow it down.

Cheers Guys


Yer no worries dude, i pretty much looked at everything but because the engine had just had a re-build


The entire world is a Money Pit, you just have to pick yours.