Knocking/clunking noise front n/s v70

shezza250 · Feb 8th, 2019, 14:46

Hi all,

I've had a knocking/clunking noise from the front n/s of my 2005 v70 2.4 petrol for about 6 months now, I've also had a lighter more frequent rattle/knock.

The loud knock/clunk was quite infrequent initially but then one day there were a few really bad knocks so put it in the local garage. They looked at it, put it on shaker plate etc but found nothing wrong.

It carried on doing the loud knock/clunk every now & then and this week I noticed I had a torn cv boot on the affected side so put the car in for a new boot & to investigate the knocks.

They said the cv joint looked really dry/knackered so advised a new one as well as the boot so they did that. They also advised new anti-roll bar links could be causing the lighter knock/rattle so have also renewed those.

The more mild, frequent knock/rattle has now gone but the loud knock/clunk remains the same!

I've inspected the gromits on the wishbone/anti roll bar etc and all appears ok. The track rod end ball joint also looks good.

Any ideas as I'm now £275 down & not much further forward!!

Cheers

shezza250 · Feb 8th, 2019, 14:47

p.s I've also checked engine mounts which look good.

MarvinMitt · Feb 8th, 2019, 14:56

What about strut top mounts?
What's the mileage?
Is it bumpy road or when accelerating/braking or cornering?

shezza250 · Feb 8th, 2019, 15:01

Strut top mounts I've not looked at.....

78K miles

Seems to do it more after going over speed bumps etc. If on a bumpy-ish road it seems to do it once every 5-10 mins or so.

Simmy · Feb 8th, 2019, 16:29

take a good look at your wishbone bushes . pry them with lever to find any movement which may cause knocking

nickh1978 · Feb 8th, 2019, 18:49

I also have a knocking on cornering (right only, not when cornering left) and it has also been suggested that I check my Top Strut Mounts.

Any thoughts on what I should be looking for on the strut mounts? Excessive play? damaged bearings? something else?

Cheers, N.

Simmy · Feb 8th, 2019, 19:47

rusted top spring mount and strut bearing

MarvinMitt · Feb 9th, 2019, 10:31

Rust doesn't tell much as my top mount bearing plates are quite rusty but bearings are smooth.
Look for the bushing where the strut rod comes through. The top big rubber coated washer is hiding the view but you can see for any cracks in the bushings.

Willow place · Feb 9th, 2019, 15:59

On one side I have quite a bit of clearance from the top of the turret to the actual rubber bush, no clonks, no difference in ride height, any ideas please (V70, D5, 2003)

Kattten · Feb 9th, 2019, 20:02

On my S80 2.4l 2002 i jacked the car up at each corner and placed a 8 inch garden hose around the spring as far down as possible

. Secured it with zip ties. It is kinda comon for the P2 cars to have clunks without anything wrong. There are volvo parts to put on the springs but garden hose works and is more or less a free way to diagnose. I cut a 8inch part of the hose and the cut it along its lengt to alide it on to the spring.

Feb 8th, 2019, 14:46	#1
shezza250 Junior Member Last Online: Dec 5th, 2019 19:16 Join Date: Nov 2017 Location: southend	Knocking/clunking noise front n/s v70 Hi all, I've had a knocking/clunking noise from the front n/s of my 2005 v70 2.4 petrol for about 6 months now, I've also had a lighter more frequent rattle/knock. The loud knock/clunk was quite infrequent initially but then one day there were a few really bad knocks so put it in the local garage. They looked at it, put it on shaker plate etc but found nothing wrong. It carried on doing the loud knock/clunk every now & then and this week I noticed I had a torn cv boot on the affected side so put the car in for a new boot & to investigate the knocks. They said the cv joint looked really dry/knackered so advised a new one as well as the boot so they did that. They also advised new anti-roll bar links could be causing the lighter knock/rattle so have also renewed those. The more mild, frequent knock/rattle has now gone but the loud knock/clunk remains the same! I've inspected the gromits on the wishbone/anti roll bar etc and all appears ok. The track rod end ball joint also looks good. Any ideas as I'm now £275 down & not much further forward!! Cheers

Feb 8th, 2019, 14:56	#3
MarvinMitt Senior Member Last Online: Nov 1st, 2021 21:18 Join Date: Sep 2016 Location: Tartu	What about strut top mounts? What's the mileage? Is it bumpy road or when accelerating/braking or cornering? __________________ 2002 V70 D5

Feb 9th, 2019, 10:31	#8
MarvinMitt Senior Member Last Online: Nov 1st, 2021 21:18 Join Date: Sep 2016 Location: Tartu	Rust doesn't tell much as my top mount bearing plates are quite rusty but bearings are smooth. Look for the bushing where the strut rod comes through. The top big rubber coated washer is hiding the view but you can see for any cracks in the bushings. __________________ 2002 V70 D5

Feb 8th, 2019, 14:47	#2
shezza250 Junior Member Last Online: Dec 5th, 2019 19:16 Join Date: Nov 2017 Location: southend	p.s I've also checked engine mounts which look good.

Feb 8th, 2019, 15:01	#4
shezza250 Junior Member Last Online: Dec 5th, 2019 19:16 Join Date: Nov 2017 Location: southend	Strut top mounts I've not looked at..... 78K miles Seems to do it more after going over speed bumps etc. If on a bumpy-ish road it seems to do it once every 5-10 mins or so.

Feb 8th, 2019, 16:29	#5
Simmy Premier Member Last Online: Today 10:47 Join Date: Mar 2017 Location: Manchester	take a good look at your wishbone bushes . pry them with lever to find any movement which may cause knocking

Feb 8th, 2019, 18:49	#6
nickh1978 New Member Last Online: Oct 17th, 2021 18:50 Join Date: May 2011 Location: Ipswich	I also have a knocking on cornering (right only, not when cornering left) and it has also been suggested that I check my Top Strut Mounts. Any thoughts on what I should be looking for on the strut mounts? Excessive play? damaged bearings? something else? Cheers, N.

Feb 8th, 2019, 19:47	#7
Simmy Premier Member Last Online: Today 10:47 Join Date: Mar 2017 Location: Manchester	rusted top spring mount and strut bearing

Feb 9th, 2019, 15:59	#9
Willow place Senior Member Last Online: Jan 1st, 2023 17:41 Join Date: May 2017 Location: Los Finos Almeria	On one side I have quite a bit of clearance from the top of the turret to the actual rubber bush, no clonks, no difference in ride height, any ideas please (V70, D5, 2003)

Feb 9th, 2019, 20:02	#10
Kattten New Member Last Online: Jun 25th, 2024 10:09 Join Date: Jan 2019 Location: Halland	On my S80 2.4l 2002 i jacked the car up at each corner and placed a 8 inch garden hose around the spring as far down as possible . Secured it with zip ties. It is kinda comon for the P2 cars to have clunks without anything wrong. There are volvo parts to put on the springs but garden hose works and is more or less a free way to diagnose. I cut a 8inch part of the hose and the cut it along its lengt to alide it on to the spring.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)