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Author Topic: Knocking  (Read 5018 times)

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ckz

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Knocking
« on: 09 January 2015, 03:49:16 »

Hi guys,
Short question.
Exchanged both wishbones, tracking and alignment set up.
Still have knocking on front suspension when wheels in full lock and going into reverse.
It's coming from the front.

Estate, 2,5 v6 mini facelift automatic.


Any ideas?
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05omegav6

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Re: Knocking
« Reply #1 on: 09 January 2015, 12:37:25 »

Wishbone bolts loose/top mounts worn...
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ckz

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Re: Knocking
« Reply #2 on: 09 January 2015, 18:12:14 »

checked all wishbone  bolts today and they are all tight.
seems its coming from one side when you the steering is hitting a point to tyhe left but we coulnt determiate exactly where from.
have a dig on monday, jacking it up and see what it is.
start anoying me now.
try to do something good to the car and give it new parrts and the thank you i et is it wants more.

it has to be carefull if it demands too much it has the faith of every other one before/
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05omegav6

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Re: Knocking
« Reply #3 on: 09 January 2015, 18:31:36 »

Might also be track rod ball joints or brake calipers pins worn... :-\

Pop it on ramps and have a good prod and poke around :y
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Mr Gav

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Re: Knocking
« Reply #4 on: 10 January 2015, 09:48:00 »

Might also be track rod ball joints or brake calipers pins worn... :-\

Pop it on ramps and have a good prod and poke around :y

I was thinking that or possibly the idler arm?

Does it only do it on full lock and reverse?
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biggriffin

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Re: Knocking
« Reply #5 on: 10 January 2015, 09:55:47 »

Uprights clouting wishbone when on full lock(hitting the stops)
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ckz

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Re: Knocking
« Reply #6 on: 10 January 2015, 10:02:12 »

Might also be track rod ball joints or brake calipers pins worn... :-\

Pop it on ramps and have a good prod and poke around :y

I was thinking that or possibly the idler arm?

Does it only do it on full lock and reverse?

yes thats how it started.
on better investigation when you turn the steering wheel it gives a slight knocking noise before on full lock to the left .
we checked all bushes and arms under the car and nothing seems losse or moving out the ordinary.

just want to get everything sorted as i have tracking and allignement next week . so after that i hope the front tyres keeping there profile a bit longer. lol
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ckz

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Re: Knocking
« Reply #7 on: 10 January 2015, 10:07:12 »

Caliper Pins exchanged 2 month ago while renewing the pads.
balljoints tested while exchanging the wishbones, at least them which are not on wishbones allready.
all ok and nothing out of the ordinary according to both garages.
been on 2 places to get each wishbone done, as it was 6 weeks apart to do and the first garage wasn't able to do it straight away.

also seen the steering arms been tested as well when the other wishbone was done, just in case .
if it is the strut on top of the shocker how much is one of them ?
seems i cant find the partnumber to investigate for a price.
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05omegav6

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Re: Knocking
« Reply #8 on: 10 January 2015, 11:07:24 »

Any knocking or clonking over bumps? How does the car drive?
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terry paget

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Re: Knocking
« Reply #9 on: 10 January 2015, 11:23:57 »

Have you recently changed a front wheel? It could be a balance weight on the inside of a wheel clonking on the brake caliper.
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Shackeng

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Re: Knocking
« Reply #10 on: 10 January 2015, 12:03:03 »

I hope your garages followed the guide on here particularly regarding tightening the front w/b bolts with wheels loaded. If not you will soon be changing the front bushes:-\
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ckz

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Re: Knocking
« Reply #11 on: 10 January 2015, 18:29:10 »

Any knocking or clonking over bumps? How does the car drive?

no noise or knocking over speedhumps.
drives straight. no pulling to any side.
it did with the wishbone problem on the left at first but all gone now.
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ckz

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Re: Knocking
« Reply #12 on: 10 January 2015, 18:29:54 »

Have you recently changed a front wheel? It could be a balance weight on the inside of a wheel clonking on the brake caliper.

new wheels and Tyres Balanced toady.
no difference
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ckz

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Re: Knocking
« Reply #13 on: 10 January 2015, 18:31:40 »

I hope your garages followed the guide on here particularly regarding tightening the front w/b bolts with wheels loaded. If not you will soon be changing the front bushes:-\

ermhh.
dont know.
how would this be done?
when the car is on the ground there is no space on reaching the wishbone bolts on the front. ????
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05omegav6

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Re: Knocking
« Reply #14 on: 10 January 2015, 18:53:54 »

Have you recently changed a front wheel? It could be a balance weight on the inside of a wheel clonking on the brake caliper.

new wheels and Tyres Balanced toady.
no difference
What wheels? Full details required...

Reason for asking as I know of a set of 18" sports stars with a Vectra offset which had one wheel weight with snagged under the same conditions...
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