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Old 11-04-2019   #16
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Re: 100HP rear knocking/pop

Yesterday I removed the rear seats and spare wheel and left the tailgate open while I went up the road
And itís still knocking
I havenít renewed the axel bushes cos
I cant find any play in them
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Old 11-04-2019   #17
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Re: 100HP rear knocking/pop

Check the hand brake cable brackets. Mine were loose enough for the cable sleeve to bang on the underside of the swing arm. Wrapping in tape, tightening the clips and strapping in with a pair of zip ties at each clip keeps them correctly in place.

I used pipe pliers (carefully) to close the clips with the cable in place. Tighter but not too tight.

Disc brake stone covers can rattle as can brake pads. Exhaust is a common favourite bit that's on the left side.
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Old 12-04-2019   #18
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Re: 100HP rear knocking/pop

take the shock back off.


Check the bolts in the bushes


they should be a snug fit.


its not the first time shocks have been supplied wrong size bushes
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Old 14-04-2019   #19
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Re: 100HP rear knocking/pop

When I jack the car off the ground I put a plank of wood under the rear tyre and a brick to use as a cantilever and when I put load on the plank there is no play in any of the moving parts or no clunking of bolts or bushes
It only seems to happen on side roads
Main roads over 25mph it’s perfect
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Old 15-04-2019   #20
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Re: 100HP rear knocking/pop

My wife's 1.2 Dynamic has weak gas struts on the back door which has meant I've noticed how loose the hinges are. It clunks as you push it open. Soon enough I'm expecting the hinges to start clunking over rough roads.
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Old 16-04-2019   #21
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Re: 100HP rear knocking/pop

Mine is cured now
2 new rear shocks fitted today
The Bilstein rears Iíve are only 1 month old

So a bit pissed off
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Old 17-04-2019   #22
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Re: 100HP rear knocking/pop

Presume you are sending the Bilsteins back under warranty.
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Old 15-05-2019   #23
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Re: 100HP rear knocking/pop

I have a knocking noise that appears to eminate from the rear of the vehicle, strange though because it goes away after about 5 to 10 minutes of usage. New rear dampers where fitted last year so i doubt it's them. It does sound like someone is hitting under the car with a mallet.
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Old 15-05-2019   #24
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The fact it goes away after a few minutes does sound like the shocks pumping themselves up.

After its rested awhile, reach around the wheel and try and wiggle the shock. Its tight but I can get my fat arms in there.

If that's okay support the car safely and push and pull the exhaust up and down and from side to side and try banging it with the palm of your hand
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Old 15-05-2019   #25
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Re: 100HP rear knocking/pop

Quote Originally Posted by koalar View Post
The fact it goes away after a few minutes does sound like the shocks pumping themselves up.

After its rested awhile, reach around the wheel and try and wiggle the shock. Its tight but I can get my fat arms in there.

If that's okay support the car safely and push and pull the exhaust up and down and from side to side and try banging it with the palm of your hand
I'll definitely try that, thanks. The reason why i replaced the rear shocks was because the rubber around the upper bolts were perished. It did cure the knocking sound for a few months but like i said i'm now getting this slighly different sound. They were the Topline brand from shop4parts, also the rubber bushes on these new dampers are still fine, no movement.
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Last edited by Ians Panda; 15-05-2019 at 22:05.
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