3rd Gear Vibration

TomTheTyke · 4th May 2022, 20:28

Anyone got thoughts on this:

My V6 saloon gearstick vibrates, but only between about 1750-2000 revs and only in third gear.

It's not particularly bad, at least not bad enough to make me do anything in the 6 months+ I've driven the car every day, but it is audible and 'feelable.'

If you put any pressure forward, backward or side to side on the gearstick as it vibrates, it stops. Drives fine and pulls sweetly throughout all gears.

I'm thinking it could be something in the linkage but before I remove the gaiter and have a look, I thought I'd check nobody thinks 'I had that' and can give me a clue?

Can't see anything via search.

hogweed · 5th May 2022, 09:42

Don't know about your V6, but on the diesels, this seems to be the resonant frequency of the cars, so if anything's going to vibrate, that's where it will happen.

On the diesels, it's usually a worn engine mount which causes it

Number 6 · 5th May 2022, 13:01

Quote:

Originally Posted by hogweed

Don't know about your V6, but on the diesels, this seems to be the resonant frequency of the cars, so if anything's going to vibrate, that's where it will happen.

On the diesels, it's usually a worn engine mount which causes it

I guess it is the Hydro mount out of the three then??

hogweed · 5th May 2022, 13:20

Quote:

Originally Posted by Number 6

I guess it is the Hydro mount out of the three then??

Think so? That's the bottom one isn't it?

If they're the same on the V6

Number 6 · 5th May 2022, 14:14

Quote:

Originally Posted by hogweed

Think so? That's the bottom one isn't it?

If they're the same on the V6

No, It is the upper one on the left as you look at the engine, Attached to the wheel arch area.

TomTheTyke · 5th May 2022, 14:57

Interesting, car has only done 44k, but obviously things start to wear on age as well as mileage at this stage so could be, especially if investigation of the gearstick itself shows no issues.

Not sure why it would only be third gear though.

xsport · 5th May 2022, 15:15

thats probably the "sweet spot"..

TomTheTyke · 5th May 2022, 17:12

Quick look on DMGRS suggests petrol and diesel are essentially the same mount, so definitely plausible. Could be a summer holiday project.

hogweed · 6th May 2022, 08:35

Quote:

Originally Posted by TomTheTyke

Quick look on DMGRS suggests petrol and diesel are essentially the same mount, so definitely plausible. Could be a summer holiday project.

Aye I wouldn't rely on my diagnosis though... a guess at best. And on mine it was the one at the bottom of the engine

I vaguely seem to remember there's a gearbox-related vibration on some motors too... maybe if you do a search on gearbox+vibration?

TomTheTyke · 6th May 2022, 16:46

Thanks for the suggestion anyway. As I said it's really only a small thing, I half thought the linkage might be fouling somewhere, as it stops if you move the gearstick slightly, still in 3rd.

4th May 2022, 20:28	#1
TomTheTyke Avid contributor Rover 75 2.5 Connoisseur, MG TF 80th Anniversary Join Date: Sep 2021 Location: Pontefract Posts: 157 Thanks: 12 Thanked 22 Times in 11 Posts	3rd Gear Vibration Anyone got thoughts on this: My V6 saloon gearstick vibrates, but only between about 1750-2000 revs and only in third gear. It's not particularly bad, at least not bad enough to make me do anything in the 6 months+ I've driven the car every day, but it is audible and 'feelable.' If you put any pressure forward, backward or side to side on the gearstick as it vibrates, it stops. Drives fine and pulls sweetly throughout all gears. I'm thinking it could be something in the linkage but before I remove the gaiter and have a look, I thought I'd check nobody thinks 'I had that' and can give me a clue? Can't see anything via search.

5th May 2022, 09:42	#2
hogweed I really should get out more....... Vauxhall Insignia CDTi; MG TF 135 Join Date: Jan 2010 Location: Norn Iron Posts: 2,958 Thanks: 942 Thanked 378 Times in 297 Posts	Don't know about your V6, but on the diesels, this seems to be the resonant frequency of the cars, so if anything's going to vibrate, that's where it will happen. On the diesels, it's usually a worn engine mount which causes it __________________ Past cars: MGB GT; Escort 1300 Sport; Vauxhall VX4/90; Marina Coupe TC; Celica ST (1972); Montego Turbo; Astra GTE 16V; Astra GSI 16V; Golf GTI 16V (Mk II); Sierra XR4x4 Estate; BMW 325i (E30); BMW M3 3.0; BMW M3 3.2 Evo. Left some of the more embarrassing ones out. And about 30 motorbikes.

5th May 2022, 14:57	#6
TomTheTyke Avid contributor Rover 75 2.5 Connoisseur, MG TF 80th Anniversary Join Date: Sep 2021 Location: Pontefract Posts: 157 Thanks: 12 Thanked 22 Times in 11 Posts	Interesting, car has only done 44k, but obviously things start to wear on age as well as mileage at this stage so could be, especially if investigation of the gearstick itself shows no issues. Not sure why it would only be third gear though.

5th May 2022, 15:15	#7
xsport Posted a thing or two rover 75 club se Join Date: Apr 2011 Location: Leicester Posts: 1,641 Thanks: 358 Thanked 419 Times in 310 Posts	thats probably the "sweet spot"..

5th May 2022, 17:12	#8
TomTheTyke Avid contributor Rover 75 2.5 Connoisseur, MG TF 80th Anniversary Join Date: Sep 2021 Location: Pontefract Posts: 157 Thanks: 12 Thanked 22 Times in 11 Posts	Quick look on DMGRS suggests petrol and diesel are essentially the same mount, so definitely plausible. Could be a summer holiday project.

6th May 2022, 16:46	#10
TomTheTyke Avid contributor Rover 75 2.5 Connoisseur, MG TF 80th Anniversary Join Date: Sep 2021 Location: Pontefract Posts: 157 Thanks: 12 Thanked 22 Times in 11 Posts	Thanks for the suggestion anyway. As I said it's really only a small thing, I half thought the linkage might be fouling somewhere, as it stops if you move the gearstick slightly, still in 3rd.