|Steering wheel not aligned
Question : My car's steering wheel is perpetually not aligned. It feels
heavy, rough and vibrates spontaneously at low and high speeds. The car is
under warranty and each time I take it to the Proton service centre, they
never seem to fix the problem or are only able to temporarily fix it.
I find your explanation regarding the tyres unlikely as the source of the
problem. There is no way that my tyres are already 50 per cent worn, as the
problem has been present since delivery of the car. The service centre
insists there is a problem with the 'steering bush' but no matter how many
times they mucked around with it, the problem persists. Can you provide more
information regarding other causes of this problem? What exactly is a
'steering bush'? Is it possible that the 2005 special edition Waja is
defective with regards to this seemingly crucial component? Do I need to get
the service centre to check the car's suspension joints and shock absorbers?
Answer : When one speaks of steering not aligned or wandering,
etc. there are many areas that can be the cause of the problem. With the
space that this column has, we cannot go into all the details But try to
make an educated guess. If tyres are not the problem, then one has to look
1. Wheels. If the wheel offsets are not according to specs, then one can
have heavy steering and even wandering on uneven roads. If your original
wheels have been replaced with wider ones, this could be a problem area as
the offsets could be incorrect.
2. Steering. There could be a problem with the power steering pump, the
rack assembly or even the rack mountings. Many steering racks are rubber
mounted and if the mountings are no good due to age or even fit, the rack
could move resulting in wandering, etc.
3. There is a possibility of a third cause and
that is the control valve within the steering rack
assembly. This control valve has a torsion bar
that deflects when steering load is put on it and
this opens a valve to allow hydraulic fluid on
either side of the rack -- thus providing power
assistance. If this control valve is faulty, the steer
ing will be heavy sometimes. The solution is to
pull the whole assembly out and service it.