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Having previously driven a car with a mildly unreliable power steering system, it’s an extremely good thing that the power steering was backed up with a mechani
by amluto 3y ago
Having previously driven a car with a mildly unreliable power steering system, it’s an extremely good thing that the power steering was backed up with a mechanical linkage (that worked very well — it was surprisingly subtle when the power steering crapped out at 30mph).
A drive-by-wire system had better be a lot more reliable and also notice impending failures.
- dkjaudyeqooe 3y ago> it was surprisingly subtle when the power steering crapped out at 30mph It's not a problem at those speeds, having it crap out when turning slowly and sharply around fast traffic is much more likely to be deadly.
- dotancohen 3y agoThe opposite is true. Those old AMCs without power steering were just as easy to steer on the highway as any other car (once you managed to get up to speed) but the parking lot was a chore and parallel parking was neigh impossible.
- bombcar 3y agoFancier power steering systems basically fully disengage at speed because you don’t need them; they’re for moving the wheels when you’re stopped or nearly so.
- dkjaudyeqooe 3y agoI guess I got the wording wrong because that's exactly what I meant.
- amluto 3y agoThe most dangerous situation I encountered was turning left across traffic from a stop.
- dkjaudyeqooe 3y agoYeah that's exactly what I was thinking about (and thought I wrote, but the downvotes say otherwise). If your steering assist conks out just as you're trying to turn at slow speed you could end up heading into oncoming traffic, at an angle at least. It's actually pretty dangerous, good thing you don't drive it any more.
- amluto 3y agoA combination of whatever fiddling the mechanic did and making sure the fluid was topped off seemed to solve the issue. Also, it was a good, if somewhat old, car, and the mechanical steering was quite good. I was able to steer it without much difficulty at pretty much any speed even in no-power-steering mode. But yes, I agree, unpredictable steering response is dangerous.
- devmor 3y agoI personally cannot stand power steering systems. There’s always a dead zone and the feedback is delayed, in some vehicles more noticeably than in others, but it’s always there. I feel like I have had several close calls that would have been accidents for sure had I been driving with power steering.
- lathiat 3y agoWhat car do you have without power steering? Or, are you referring to electric as opposed to hydraulic power steering? I haven't seen a car without power steering since the early 00s (which was a 90s car). The steering deadzone is not purely a function of power steering. Some of it is design or could be attributed to that, but a bunch of it also comes from slop in the physical connections in the steering column, as well as the suspension bushings, your tyre profile, etc.
- amluto 3y agoI once drove an early car with an electric steering assist system. (It was either a renta or a test drive, I think it was an American car, and I don’t remember what brand or model.). It was terrible. There was essentially no feedback from the road to the wheel. These systems have improved.
- devmor 3y agoIt turns out I was mistaken! I haven’t done enough research to determine the actual cause of the effect I have noticed. It might be hydraulic vs electric but I don’t want to make that assumption and be wrong again - I’m going to have to research the steering in other cars I’ve noticed that issue in.
- lathiat 3y agoThere’s definitely a different feel to the electric motor driven assist. Though there are just many different implementations probably the specific one you had was particularly quirky. Relatedly I had a Hyundai i30 for a while which has a well known fault where the plastic gear connection (called a Spyder Bush) from the electric motor to the steering column would break. Resulting in slop and a clunk. Not hard to imagine similar failures or bad design.