Steering Issues - Help

CMPQS · 16th October 2008, 19:36

A few months ago I noticed that the car oversteered quite seveerly if going enthuisiastically into a right hander. I put it down to the top suspension mounts having gone & decided to ease off & get it looked at at its next Service.

Lates couldn't find anything obviously wrong, no telltale clunks & all the bushes are OK. The Tracking was miles out though, as it always is. They suggested getting this done properly & then trying to work out the problem when this was known to be OK. Well it took me a couple of weeks but I have had this done properly & swopped the tyres around so that the fronts are evenly worn. Below 30mph she tracks true & is no problem. However above this speed I get various symptoms.

1) if i accellerate reasonably quickly & then lift off I get a tug through the steering wheel. But not all the time. usually occurs if I go from 40mph to 70 7 lift off.
2) Occaisionally when the car hits a section of rough tarmac the steering goes light for a split second & then bites & you have to be ready to catch the steering wheel. usually occurs at 50ish mph
3) She still oversteers suddenly on Right handers but only if its a bit tight & you are being enthusiastic.
4) Occaisionally croosing the camber in the road causes a tug through the steering wheel.

I am thinking that the PAS has had it, but I am not at all sure. Anybody had similar symptoms or got an alternative suggestion as to the problem / possible cure?

Car Is Facelifted ZT 190 Full service history & any repairs carried out at main dealer & lates nearly 50K miles, 90 % of which are by me.

Thanks in advance.

CMPQS

JohnDotCom · 16th October 2008, 21:02

I would say a Power Steering fault myself,
but also Certain Makes of Tyres can cause similar effects more so Cheap brand or unknowns.
I have had this on Son's Car when he fitted NAUGHTY WORD-NAUGHTY WORD-NAUGHTY WORD-NAUGHTY WORD- because short of funds (and that was on a Cosworth!)
I am sure now tracking sorted, Lates would soon be able to have a look and confirm or deny.

Greeners · 16th October 2008, 21:07

try swapping tyres front to back........cheap to do and see if you get any improvement.

Also check tyre pressures with the manfacturers recommendations rather then MGR.

Make sure if you've got directional tyres, they are on the right way round.

CMPQS · 17th October 2008, 08:34

Thanks guys. I favour PAS. The tyres are indeed cheep %$^%. I always had contis previously but started my own business just over 7 months ago & three weeks in realised I need 600 quids woth of rubber & just didn't have the funds at the time. I have a couple of spare wheels with worn contis on. I will try them & see if any difference is apparent.

JohnDotCom · 17th October 2008, 08:40

You would be surprised at the difference Cheap Tyres can make,
also any tyre that goes faulty.

16th October 2008, 19:36	#1
CMPQS Avid contributor MG ZT Join Date: Nov 2006 Location: Milton Keynes Posts: 152 Thanks: 0 Thanked 0 Times in 0 Posts	Steering Issues - Help A few months ago I noticed that the car oversteered quite seveerly if going enthuisiastically into a right hander. I put it down to the top suspension mounts having gone & decided to ease off & get it looked at at its next Service. Lates couldn't find anything obviously wrong, no telltale clunks & all the bushes are OK. The Tracking was miles out though, as it always is. They suggested getting this done properly & then trying to work out the problem when this was known to be OK. Well it took me a couple of weeks but I have had this done properly & swopped the tyres around so that the fronts are evenly worn. Below 30mph she tracks true & is no problem. However above this speed I get various symptoms. 1) if i accellerate reasonably quickly & then lift off I get a tug through the steering wheel. But not all the time. usually occurs if I go from 40mph to 70 7 lift off. 2) Occaisionally when the car hits a section of rough tarmac the steering goes light for a split second & then bites & you have to be ready to catch the steering wheel. usually occurs at 50ish mph 3) She still oversteers suddenly on Right handers but only if its a bit tight & you are being enthusiastic. 4) Occaisionally croosing the camber in the road causes a tug through the steering wheel. I am thinking that the PAS has had it, but I am not at all sure. Anybody had similar symptoms or got an alternative suggestion as to the problem / possible cure? Car Is Facelifted ZT 190 Full service history & any repairs carried out at main dealer & lates nearly 50K miles, 90 % of which are by me. Thanks in advance. CMPQS

16th October 2008, 21:07	#3
Greeners Moderator MG-ZTT Join Date: Mar 2007 Location: Ware, Herts Posts: 19,798 Thanks: 161 Thanked 1,249 Times in 1,036 Posts	try swapping tyres front to back........cheap to do and see if you get any improvement. Also check tyre pressures with the manfacturers recommendations rather then MGR. Make sure if you've got directional tyres, they are on the right way round. __________________ *David* Impecunity is the mother of ingenuity Useful how to's for common problems Car Of The Month Jan 2014 [SatNav Power Down] [Coolant Level] [SatNav Repair] [Diesel Non Starting] [Paint Codes] [Rear Light Seals] [Reversing Light Switch] [Bleeding Brakes][Sunroof Drain] [Early ZT's][Instrument Pack Diagnostics][ATC Diagnostics]

16th October 2008, 21:02	#2
JohnDotCom * Rover 75 FaceLift Tourer CDTi 170BHP Auto ConnSE 2005 Model Starlight Silver Join Date: Nov 2006 Location: Abergele Posts: 28,735 Thanks: 0 Thanked 6 Times in 5 Posts	I would say a Power Steering fault myself, but also Certain Makes of Tyres can cause similar effects more so Cheap brand or unknowns. I have had this on Son's Car when he fitted NAUGHTY WORD-NAUGHTY WORD-NAUGHTY WORD-NAUGHTY WORD- because short of funds (and that was on a Cosworth!) I am sure now tracking sorted, Lates would soon be able to have a look and confirm or deny.

17th October 2008, 08:34	#4
CMPQS Avid contributor MG ZT Join Date: Nov 2006 Location: Milton Keynes Posts: 152 Thanks: 0 Thanked 0 Times in 0 Posts	Thanks guys. I favour PAS. The tyres are indeed cheep %$^%. I always had contis previously but started my own business just over 7 months ago & three weeks in realised I need 600 quids woth of rubber & just didn't have the funds at the time. I have a couple of spare wheels with worn contis on. I will try them & see if any difference is apparent.

17th October 2008, 08:40	#5
JohnDotCom * Rover 75 FaceLift Tourer CDTi 170BHP Auto ConnSE 2005 Model Starlight Silver Join Date: Nov 2006 Location: Abergele Posts: 28,735 Thanks: 0 Thanked 6 Times in 5 Posts	You would be surprised at the difference Cheap Tyres can make, also any tyre that goes faulty.