Hi guys

I am a owner of vouge not sport however engine tdv8 (2007 MY) with 100k miles on clock
Since I bought it i feel strange thing during ride

Esspecialy when engine is hot when i start moving forward from stop position (automatic or manual or sport whatever) I feel and hear harshness and vibration (on accl throtle and floor as well as hear)smth about 1700-2200 rpm during acceleration (smoth accleration) i , its not always (let say 2 on 5 times) This harshness is definetly grinding...but high pitch

In low rpm at the begging of acceleratiion phase it comes with 1-3 seconds "looo"sound , in normal ride and acceleration with higer speed (during taking over other car for instance) it only harshness smwhere near gear change revs(2200 rpm) and less hearable mentioned sound (probably covered by engine sound and tyres)

it comes from front part of the car( it loks like). So I changed right hub bearing, new tyres(old was damaged), checked tyres pressure if equal to spec., change front plates and disks(were uselless), checked CV joints and all suspension parts including transfer box and diffs by LR AD and other mechanics mostly due to some loose or used parts , eventually accordng to LR suggestions(after all investigation) I changed Torque converter for new one(i took it directly from ZF for 1/3 LR price thats why I am still here not in lunatic asylum)...

In the meantime I changed oils in all gears parts that is gearbox(during TC change) , boths diffs, transfer box.
there was no contamination in rear diff in old oil however dif is hearable slightly when I exceed 60 km/h

Additional symptoms arrived yeasterday , i found oil in the garage under the car, after investigation I found that it came from front diff breather pipe , so today my mechnics friend "curing" that issue.

As I said no clicking juddering etc.. just harshness -grinding and some short sound during setting off acceleration

I found in some forums that its normal, I dont want to belive it that car which new cost over 100k pounds could has such a "issues"

Any idea what to do ?

There is a forum for the range rover vogue

http://www.fullfatrr.com/forum/

npinks wrote:

There is a forum for the range rover vogue

http://www.fullfatrr.com/forum/

I think the problem is your front diff.

I'd suspect a pinion bearing in the differentials.

Can you vary the sound with accelerator on and off?

drdelrrs wrote:

I'd suspect a pinion bearing in the differentials.

Can you vary the sound with accelerator on and off?

only when on (means throtle pedal pushing ) when I take foot off and braking using engine no symptoms



rgds

andrzejb wrote:

drdelrrs wrote:

I'd suspect a pinion bearing in the differentials.

Can you vary the sound with accelerator on and off?

only when on (means throtle pedal pushing ) when I take foot off and braking using engine no symptoms



rgds

If noise is only when car's under power then I'd suggest the inner pinion shaft bearing (i.e. the diff. input shaft bearing) as its under pressure when the load is on.

Could actually be the crown wheel and pinion teeth that have become pitted. Either way you'd need the diff. out of the car to check - you might 'feel' the roughness if you disconnect the prop-shaft at the diff end and with both wheels of that axle jacked clear try and rotate the prop-shaft.

drdelrrs wrote:

If noise is only when car's under power then I'd suggest the inner pinion shaft bearing (i.e. the diff. input shaft bearing) as its under pressure when the load is on.

Could actually be the crown wheel and pinion teeth that have become pitted. Either way you'd need the diff. out of the car to check - you might 'feel' the roughness if you disconnect the prop-shaft at the diff end and with both wheels of that axle jacked clear try and rotate the prop-shaft.

andrzejb wrote:

drdelrrs wrote:

If noise is only when car's under power then I'd suggest the inner pinion shaft bearing (i.e. the diff. input shaft bearing) as its under pressure when the load is on.

Could actually be the crown wheel and pinion teeth that have become pitted. Either way you'd need the diff. out of the car to check - you might 'feel' the roughness if you disconnect the prop-shaft at the diff end and with both wheels of that axle jacked clear try and rotate the prop-shaft.

But if failure ,diff needs to be changed yes? As i said no such a parts(bearings) from prop-shaft side available as a spare parts ...this bearing is inside diff as i see in microcat

small update... after the rear pads and disk change (including hand brake parts) sound vanished. ... harshness remains.... maybe its normal for that car

Shouldn't be any harshness. If it is just at take up, I would be checking diff, gearbox and engine mountings and exhaust clearance/mountings. Also centre prop shaft bearings are known to fail at higher miles. New prop is £235 so dont bother to try changing carrier bearing Having had both Sport and now Fullfat, take up is smooth and seamless. I did have a front diff failure last year that gave noise and harshness most noticed at around 25-30 mph and could be felt through steering wheel amongst many other failures  2x TDV6. SE and HSE. Both returned to sender with issues👀
TDV8 Sport HSE...... Gone. Loved it but it didn't love me!!
Now rolling in MY10 Fullfat TDV8 Vogue. Slammed it to go round corners🙈
Cruising daily #56 mph in a Volvo V8. 😱
Lots of other toys in the cupboard...😜

simple1 wrote:

Shouldn't be any harshness. If it is just at take up, I would be checking diff, gearbox and engine mountings and exhaust clearance/mountings. Also centre prop shaft bearings are known to fail at higher miles. New prop is £235 so dont bother to try changing carrier bearing Having had both Sport and now Fullfat, take up is smooth and seamless. I did have a front diff failure last year that gave noise and harshness most noticed at around 25-30 mph and could be felt through steering wheel amongst many other failures

Today after the "noises" after the rear brakes change disapeared I clearly felt what is like with harshness and vibration

so I have two specifi condition
1)at low rpm (1000-1200) when I smoothly accelerate or just touching the throtle pedal trying keep low rpm i
I feel vibration at floor area as well as throtle pedal , it happens at each gear
2)at 2200 rpm at each gear peak during acceleration (vibration at the same area however at higher freq then above)

reading some topics here i visualy checked hoses from intercooler as well as area aroung vacuum pump.. all clear.

any idea?
vibration at low rpm could be coused by injectors? how to check that?
one more time I laid under the car and check porpshaft(gearbox on N)all looks fine.

Was there ever a resolution to this one, or was the prevailing advice of 'get rid of it' taken?