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Discussion Starter · #1 · (Edited)
Apologies if this has been covered before, had a quick snout and couldn't find it.

My 156 'kicks back' quite violently through the steering during hard (starting to understeer) cornering. It is made worse when on the power but occurs even when not.

My previous 156 was near identical spec and showed no sign of this. I have had the steering checked by a specialist I know to be good and they found no fault. As I drive the car quite hard and intend to take it on the odd track outing, this is more of a problem for me than perhaps it normally would be. It detracts from the feel of the steering and also the driving enjoyment.

Has anyone any ideas as to the problem / solution?

Thanks in advance for any advice given,

Paul
 
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Paul,

You don't mention whether it is in just one direction or both ways.

As it's been looked at already I'd check the tightness of the drive shaft hub nuts (just in case) and then the tension of the power steering pump drive belt.

Tom
 

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Do you get a similar effect if you spin the wheels pulling away in a straight line? If so, then I reckon your shock absorbers are shot and allowing the wheels to bounce; this causes kickback. Same problem on my JTD at the moment.
Cheers,
Simon_S
 

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Discussion Starter · #6 ·
No it's not torque steer and does not happen in a straight line. Torque steer feel similar to 'tramlining' and it's nothing like that, it feels like crashing over potholes for example, but occurs on perfectly smooth surfaces. I've had the wheel alignments checked and it is running standard wheels and tyre sizes. If it is the suspension itself I would be surprised as the damping feels fine other than this. Although if it was the suspension it'd give me the excuse needed for coilovers...
 

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autocad said:
Check you driveshaft joints if theres to much play in them they some how get locked in one position then jump free as you straighten up.
I second that. A knackered CV did that to me too. A second idea is a failing power steering pump? Could it be a brief, split-second PS failure?
 

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Maybe your front wishbone bushes or ball joints are knackered and the wheel isn't really being controlled under pressure?

ITs defintely not normal behaviour, I have only experienced kickback when hitting a pothole or severe bump under cornering in my t-spark.
The GTA is much better at absorbing things when this happens mind.

Cheers,
TB
 

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Discussion Starter · #10 ·
Thanks all, I at least have some directions in which to look now! The joints have been checked and were ok, though because the problem only occurs when driven very hard, the garage couldn't find it and I think they thought I was making it up...

Can anyone recommend any Alfa specialists in Salisbury / Andover areas??? I've just moved up here to Amesbury and don't know any garages around here to trust yet. And I'm not going to Alfa themselves...
 

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Discussion Starter · #12 ·
No it's not that, I've driven 30k miles in my last 156 V6 and that never behaved like this! The tyres are sliding slightly when it happens (usually but not all the time) but it's not this feeling that I'm getting through the wheel. It's a voilent jerking motion that is occompanied by a knocking noise at times. I've had a lot of cars and driven them all quickly and none has ever done anything like this through the steering, even when fully sliding.
 

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Don`t be daft :) That was a fair answer to a cheeky question ;)

You said occasional knock though, which does make me think of CV again. They can be sods to diagnose and can be failing even though they look just fine to all sorts of inspection.

I've had a few garages couldn't spot my CV joint was pooped. they swore blind it wasn't but when I insisted they change it - what do you know! - the joint was completely dry of all grease.
 

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Discussion Starter · #18 ·
CV joint sounds like the common opinion here then! It does make a fairly nasty knock and noise and from what you've all said I'd say it's this. Glad we've helped someone else too! I'll let you all know for sure what it was when I find somewhere round here to sort it.

Thanks again!
 

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Discussion Starter · #19 ·
Tried Benalfa cars who could find no problems with it. But then despite hearing good things about them they also said my brakes were responsible for a noise that (I told them) was a wheel bearing. And couldn't find a noise I told them was from the exhaust, which I found in about a minute once the car was on a ramp, by tapping the rear downpipe where the two sections join - there's something metallic rattling inside it. So not best pleased with them! Going to do all the work I can myself now, cheaper and I know it's been done properly!!!
 
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