Steering Wheel Vibration

tintin · 2nd January 2021, 16:41

Hi All,

I've got a problem with my ZT Tourer Diesel, I'm feeling a vibration through the steering column/wheel when "accelerating only" approx. 2000rpm!

There is no vibration felt under any other conditions or at tickover nor any knocking noises.

The Hydramount was changed about 2 years ago when there was cabin vibration (which fixed it)

Hope you can help?

trikey · 2nd January 2021, 22:09

Lower engine mount??

COLVERT · 2nd January 2021, 22:49

Out of balance crankshaft damper ????

Resonant frequency 2,000 rpm.---

Sonic ZS · 3rd January 2021, 16:16

As Trikey says, check the lower engine mount (sump to subframe), I've just changed mine and it's surprising how this limits vibration !

I fitted a Mondeo mount (bit of a test really - it's a tougher design, but more NVH now so wouldn't again), but couldn't believe how this small part affected the smooth running of the car

tintin · 3rd January 2021, 16:18

Thanks for the responses I'll give the lower mount a try and see how it goes?

Cheers
Tintin

Sonic ZS · 3rd January 2021, 16:23

Use a large screwdriver or lever bar to 'stress' the big bush when you check it, as any cracks are not easily visible when at rest

hogweed · 3rd January 2021, 16:28

A lot of them do this – about 1800rpm seems to be the car’s natural resonant frequency, so if something’s going to buzz, that’s where it’ll happen.

I got the engine mounts replaced years ago, but didn’t make any difference (even though the bottom one was definitely knackered) – there were lots of other helpful suggestions here, but none of them worked either. Eventually my exhaust (which was fingered as a possibility) fell to pieces a couple of years ago, so was replaced in its entirety – that didn’t help either.

Funny thing… it seems to come and go a bit. Sometimes I won’t feel it much for many weeks, then it’ll be quite noticeable. It *seems* to happen more in really cold weather

2nd January 2021, 16:41	#1
tintin Newbie MG ZT-T Join Date: Nov 2015 Location: Chesterfield Posts: 27 Thanks: 6 Thanked 4 Times in 3 Posts	Steering Wheel Vibration Hi All, I've got a problem with my ZT Tourer Diesel, I'm feeling a vibration through the steering column/wheel when "accelerating only" approx. 2000rpm! There is no vibration felt under any other conditions or at tickover nor any knocking noises. The Hydramount was changed about 2 years ago when there was cabin vibration (which fixed it) Hope you can help?

2nd January 2021, 22:09	#2
trikey Premium Trader Rover 75 Join Date: Nov 2010 Location: Devon Posts: 33,764 Thanks: 8,837 Thanked 14,831 Times in 8,030 Posts	Lower engine mount?? __________________ Lest we forget..

3rd January 2021, 16:16	#4
Sonic ZS Posted a thing or two 75 Conn CDT Tourer, 75 Conn SE V6, 75 Conn V6, 75 Conn CDTi Tourer, ZS 180 Join Date: Jan 2014 Location: Devon Posts: 1,986 Thanks: 1,287 Thanked 963 Times in 534 Posts	As Trikey says, check the lower engine mount (sump to subframe), I've just changed mine and it's surprising how this limits vibration ! I fitted a Mondeo mount (bit of a test really - it's a tougher design, but more NVH now so wouldn't again), but couldn't believe how this small part affected the smooth running of the car __________________

3rd January 2021, 16:18	#5
tintin Newbie MG ZT-T Join Date: Nov 2015 Location: Chesterfield Posts: 27 Thanks: 6 Thanked 4 Times in 3 Posts	R Thanks for the responses I'll give the lower mount a try and see how it goes? Cheers Tintin

3rd January 2021, 16:23	#6
Sonic ZS Posted a thing or two 75 Conn CDT Tourer, 75 Conn SE V6, 75 Conn V6, 75 Conn CDTi Tourer, ZS 180 Join Date: Jan 2014 Location: Devon Posts: 1,986 Thanks: 1,287 Thanked 963 Times in 534 Posts	Use a large screwdriver or lever bar to 'stress' the big bush when you check it, as any cracks are not easily visible when at rest __________________

2nd January 2021, 22:49	#3
COLVERT This is my second home R75 Saloon. Join Date: Feb 2009 Location: France/or Devon. Posts: 14,003 Thanks: 3,851 Thanked 2,167 Times in 1,816 Posts	Out of balance crankshaft damper ???? Resonant frequency 2,000 rpm.---

3rd January 2021, 16:28	#7
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	A lot of them do this – about 1800rpm seems to be the car’s natural resonant frequency, so if something’s going to buzz, that’s where it’ll happen. I got the engine mounts replaced years ago, but didn’t make any difference (even though the bottom one was definitely knackered) – there were lots of other helpful suggestions here, but none of them worked either. Eventually my exhaust (which was fingered as a possibility) fell to pieces a couple of years ago, so was replaced in its entirety – that didn’t help either. Funny thing… it seems to come and go a bit. Sometimes I won’t feel it much for many weeks, then it’ll be quite noticeable. It seems to happen more in really cold weather __________________ 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.