Member Since: 06 Sep 2013
Location: Alunda
Posts: 330
Bouncing at lower speeds
Hello,
I have a weird problem that is currently nagging me. I have a 2011 D4 automatic and I have a vibration or maybe more like a "bouncing" between 40-55 km/h. It goes away at speeds over 60 km/h. It feels like a flat spot on a tyre or similar and increase in frequency with increased speed. I can feel it in the seat and not in the steeringwheel so I assume it is in the rear. So far I have checked:
Harmonic balancer weights are loose and moving
Rear propshaft bearing looks ok
Rear brakes are all relatively new, including EPB and there is no heat at all
No play in any wheel bearings
Wheels are all balanced less than two months ago and pressures are ok. No obvious faults when inspecting tyres.
No difference in P or N
Car has done 260.000 km and is still on original suspension and drive shafts but I can not see any obvious problems when car is on the lift. I will try to move around tyres but haven´t done that yet.
I am a little bit out of ideas so anyone..?
//Peter2011 Discovery 4 3.0 TDV6 S Automatic
1999 Discovery 2 V8 ES Automatic
Earlier
2006 Discovery 3 TDV6 SE Automatic
1996 Discovery 300 Tdi ES Automatic
1975 Series 3 2.25 diesel
Nanocom Evolution for D2 V8, D3 and D4
Working kelpies for working the sheep
9th Jan 2020 2:11 pm
Weyboat
Member Since: 13 Apr 2018
Location: Weymouth
Posts: 273
Possibly water inside a tyre?
I read about this happening to someone and the symptoms were just like yours.
Can't remember where I read it though, not on this forum I think..Gone 2016 Landmark D4
Current 2015 HSE D4 - AKA - 'Gandalf the Grey'
9th Jan 2020 3:50 pm
Weyboat
Member Since: 13 Apr 2018
Location: Weymouth
Posts: 273
Member Since: 29 Nov 2006
Location: North Yorkshire
Posts: 15265
I take it your suspension is working ok and it's not sitting on the bump stops.
e.g. in access mode, then automatically lifting at higher speed ?...... always on the road less travelled 🚧
9th Jan 2020 4:40 pm
PeterTh
Member Since: 06 Sep 2013
Location: Alunda
Posts: 330
Hi,
Suspension works perfect so no problems there. No other codes either.
Will try to check for water but it feels like a longshot...
Thanks for your replies!
//Peter2011 Discovery 4 3.0 TDV6 S Automatic
1999 Discovery 2 V8 ES Automatic
Earlier
2006 Discovery 3 TDV6 SE Automatic
1996 Discovery 300 Tdi ES Automatic
1975 Series 3 2.25 diesel
Nanocom Evolution for D2 V8, D3 and D4
Working kelpies for working the sheep
9th Jan 2020 7:33 pm
PeterTh
Member Since: 06 Sep 2013
Location: Alunda
Posts: 330
The problem presented itself this morning. Got a call from my wife who was driving for work. -"Rear right tyre is flat, help". This is what I found:
and this:
I checked this tyre just a day ago. I assume it was damaged which caused the bouncing.
//Peter2011 Discovery 4 3.0 TDV6 S Automatic
1999 Discovery 2 V8 ES Automatic
Earlier
2006 Discovery 3 TDV6 SE Automatic
1996 Discovery 300 Tdi ES Automatic
1975 Series 3 2.25 diesel
Nanocom Evolution for D2 V8, D3 and D4
Working kelpies for working the sheep
10th Jan 2020 11:20 am
ianm27
Member Since: 02 Jun 2016
Location: Hertfordshire
Posts: 2154
that's some damage
Glad you found the cause and that the tyre didn't burst whilst being drivenUncle Ray's spare wheel protector
Limo Tint
Blackvue front & rear dashcam
Cruise control switch pack
Bodsy's remote for FBH
10th Jan 2020 1:18 pm
PeterTh
Member Since: 06 Sep 2013
Location: Alunda
Posts: 330
It did burst while being driven but att low speed. The sidewall damage is from drivning 50-100 m with a flat tyre.
//Peter2011 Discovery 4 3.0 TDV6 S Automatic
1999 Discovery 2 V8 ES Automatic
Earlier
2006 Discovery 3 TDV6 SE Automatic
1996 Discovery 300 Tdi ES Automatic
1975 Series 3 2.25 diesel
You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum
that's some damage
