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wayneg



Member Since: 05 Jun 2013
Location: South Fremantle, Australia ( ex London )
Posts: 563

Australia 2003 Range Rover HSE Td6 Adriatic Blue
Loud clunk when braking

I have asked before if anyone has experience of a loud clunk when braking at low speed, it was suggested it was a gearbox parking pawl safety feature. I am far from convinced as it seems to be getting louder. It occurs only on braking, even at the lightest touch of the pedal before the car has started to slow. It does not happen in reverse and is not apparent when the car is cold. From the driver's seat, it seems to be coming from the left rear, I have removed both rear calipers, cleaned and fitted new pads. I can find no excessive play in the subframe buses although have not counted them out. there is a little play in the top hub carrier bushes which have been ordered to change out. Any Ideas, I have read others having similar clunk but never tracking it down. Without touching the brakes there are never any clonks going over uneven ground or accelerating hard.
Anyone had a rear shock bush fail, what were the symptoms 2003 TD6, EGR delete, Bluefin tuning, Dual 100ah AGM batteries, UHF 2way radio, Android head unit, Led Headlights, Switchback DRL`s , Trailer Electric brake controller. icarsoft & INPA Diagnostics.


Last edited by wayneg on 10th Apr 2021 3:34am. Edited 3 times in total

Post #589315 28th Mar 2021 3:59am
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Haylands



Member Since: 04 Mar 2014
Location: Brantingham, East Yorkshire
Posts: 5602

England 2012 Range Rover Autobiography 5.0 SC V8 Ipanema Sand

Shock bushes can do this but to get an audible clonk they would need to have chunks missing...

Have you checked to see if the pads are moving in the callipers, the calliper can wear and then as the pistons hit the pads, the pads hit the disc, grab it and jump and hit the callipers as the play is taken up, this also happens if the stainless pad seats are missing...

Easy to check, see if the pads can move at all up and down within the carrier...

It only takes a small amount of movement to clonk, and doesn't tend to happen in reverse.... Thumbs Up Pete

__________________________________________________
2012MY L322 Range Rover Autobiography 5.0 Supercharged Ipanema Sand, Jet Interior
2002 L322 Range Rover Vogue 4.4 V8 Epson Green, Ivory Interior (Fatty Offroader) Now Gone
-Project Fatty off roader-

Post #589358 28th Mar 2021 1:41pm
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paul70



Member Since: 06 Mar 2018
Location: North Yorkshire
Posts: 84

United Kingdom 2011 Range Rover Vogue 4.4 V8 Santorini Black

My starting place would be the suspension bushes. When my upper arm bushes needed replacing they did clunk somewhat. They also caused my tyres to wear badly on the edges.



The separation between the metal and rubber on LR018345 shown above was obvious in my case,

Post #589390 28th Mar 2021 7:07pm
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Haylands



Member Since: 04 Mar 2014
Location: Brantingham, East Yorkshire
Posts: 5602

England 2012 Range Rover Autobiography 5.0 SC V8 Ipanema Sand

He said it comes from the rear... Pete

__________________________________________________
2012MY L322 Range Rover Autobiography 5.0 Supercharged Ipanema Sand, Jet Interior
2002 L322 Range Rover Vogue 4.4 V8 Epson Green, Ivory Interior (Fatty Offroader) Now Gone
-Project Fatty off roader-

Post #589397 28th Mar 2021 8:44pm
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wayneg



Member Since: 05 Jun 2013
Location: South Fremantle, Australia ( ex London )
Posts: 563

Australia 2003 Range Rover HSE Td6 Adriatic Blue

Haylands, thanks for the tips, I will check pad movement when I change to the top hub bushes. It makes sense the noise is coming from the pads and that's why I changed them, I did not think to check for movement. 2003 TD6, EGR delete, Bluefin tuning, Dual 100ah AGM batteries, UHF 2way radio, Android head unit, Led Headlights, Switchback DRL`s , Trailer Electric brake controller. icarsoft & INPA Diagnostics.

Post #589421 29th Mar 2021 1:15am
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wayneg



Member Since: 05 Jun 2013
Location: South Fremantle, Australia ( ex London )
Posts: 563

Australia 2003 Range Rover HSE Td6 Adriatic Blue

So today I received my new top hub carrier bushes which I changed out in record time, about 40 mins a side. I must say it's a delight to work on an 18-year-old car with zero rust. Pics are of both sides with the new bushes in. The good news is that after a quick test drive dabbing the brakes lightly there was not one knock so I am positive that was the issue. The not-so-good was once the hub was released from the top bush it was evident the bottom bush on the left side was in a bad way so that's the next job.






 2003 TD6, EGR delete, Bluefin tuning, Dual 100ah AGM batteries, UHF 2way radio, Android head unit, Led Headlights, Switchback DRL`s , Trailer Electric brake controller. icarsoft & INPA Diagnostics.

Post #590408 6th Apr 2021 9:17am
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wayneg



Member Since: 05 Jun 2013
Location: South Fremantle, Australia ( ex London )
Posts: 563

Australia 2003 Range Rover HSE Td6 Adriatic Blue

If anyone needs to change out their hub carrier bushes this was the best video I could find which gives great insight into how to tackle the job. He was quoted US$2000 from a garage.
https://www.youtube.com/watch?v=QReWR8zZAqY 2003 TD6, EGR delete, Bluefin tuning, Dual 100ah AGM batteries, UHF 2way radio, Android head unit, Led Headlights, Switchback DRL`s , Trailer Electric brake controller. icarsoft & INPA Diagnostics.

Post #590643 8th Apr 2021 5:52am
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