When i drive straight because it is loose abit on left side, the steering wheel go left and cause it to steer to the left without my input. Seems to me it is not balance.

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After left corner, the steering wont return to center at 12 oclock but instead , only return to between 11 and 12 oclock (11.30 oclock). This is nothing for short drives but it will be uncomfortable and tiring for long drives as ibhave to contantly adjust the wheel to center manually

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But the is aslight knocking sound on uneven road and after speed bump

Am i right to suspect on the steering column?

Its a Proton. I never see myself selling the car, planning to use it as long as i can that is why i am very particular on thr suspension issues and want to solve all i can

Some say the most experienced in the business.

Ah Hee Motors at Salak Selatan. RM40 for front only (1.8L sedan).

Oh..BTW, when we go to shop and ask for wheel alignment, they only do wheel alignment? They won't do steering alignment? Or it's something that they do together?

Oh..BTW, when we go to shop and ask for wheel alignment, they only do wheel alignment? They won't do steering alignment? Or it's something that they do together?

At the initial stage of performing front (2) wheel alignment job , the steering wheel is always FIRST centred ,
prior to adjustment of camber and/or caster angles (which is often omitted by alignment shop) to be followed by toe angles adjustment at the tail end of the job .

Hence, centering of steering wheel is part and parcel of front wheel alignment job (whether or not front camber and/or caster angles are adjusted) and not separate apart .

Thank you for your replies. I want to update you what have i fixed/replaced

1. Absorber front and rear
2. Absorber bush front and rear
3. Absorber mount front and rear
4. Stabilizer link front and rear
5. Stabilizer bar bush
6. Steering rack bush
7. Front lower arm with bush and ball joint
8. Steering fluid
9. All 4 tyres

Car handling is solid, like new. But the problem is with the alignment,  which i suspect because one of the steering component (not the rack). Most probably the steering column(?)

When idle, turn abit the steering wheel to right feel nice and tight. But to the left,  abit loose. But no play, means when i move to left the tyre it's moving. So no issues with free play.

When i drive straight because it is loose abit on left side, the steering wheel go left and cause it to steer to the left without my input.  Seems to me it is not balance.

If engine is off,  turn left and right is steady and balanced. No loose

After left corner, the steering wont return to center at 12 oclock but instead , only return to between 11 and 12 oclock (11.30 oclock). This is nothing for short drives but it will be uncomfortable and tiring for long drives as ibhave to contantly adjust the wheel to center manually

Fyi, handling of the car is good,  no wobbling right and left like it used to. But the is aslight knocking sound on uneven road and after speed bump

I also dont think it is the steering rack, cause no fluid leak.

Am i right to suspect on the steering column?

Fyi, the steering system is hydraulic, not EPS

like I advice u previously it could be the original/adjustable camber nut bengkok or gave up already... bend knuckle and misalligned subframe also can caused the problem...lastly it could be the rack.. cos preve si famous with inconsistent steering like u said left and right doesn't feel the same. oops forgot it could be also the power steering pump..

Knuckle can bend? I mean, how much force do you need to bend the knuckle?

Hey OP, just sharing here. Finally my steering wheel is centered. Main problem was bad steering rack, left wheel bearing gone bad, left rotor warped and seized caliper pin on both sides of the front brakes. Now my Persona feels ok.

In hindsight, the steering rack was probably still good to use for a few more years, probably better to move from cheaper parts first - brakes and bearings, and then work your way up to the expensive part.

Thank you for your replies. I want to update you what have i fixed/replaced

1. Absorber front and rear
2. Absorber bush front and rear
3. Absorber mount front and rear
4. Stabilizer link front and rear
5. Stabilizer bar bush
6. Steering rack bush
7. Front lower arm with bush and ball joint
8. Steering fluid
9. All 4 tyres

Car handling is solid, like new. But the problem is with the alignment,  which i suspect because one of the steering component (not the rack). Most probably the steering column(?)

When idle, turn abit the steering wheel to right feel nice and tight. But to the left,  abit loose. But no play, means when i move to left the tyre it's moving. So no issues with free play.

When i drive straight because it is loose abit on left side, the steering wheel go left and cause it to steer to the left without my input.  Seems to me it is not balance.

If engine is off,  turn left and right is steady and balanced. No loose

After left corner, the steering wont return to center at 12 oclock but instead , only return to between 11 and 12 oclock (11.30 oclock). This is nothing for short drives but it will be uncomfortable and tiring for long drives as ibhave to contantly adjust the wheel to center manually

Fyi, handling of the car is good,  no wobbling right and left like it used to. But the is aslight knocking sound on uneven road and after speed bump

I also dont think it is the steering rack, cause no fluid leak.

Am i right to suspect on the steering column?

Fyi, the steering system is hydraulic, not EPS

The bold is after another subsequent or redo wheel alignment or caused by 'repairs' or other parts (rack,brake) replacement  that  followed after 'original' alignment ?

My first alignment had the steering wheel properly centred , but car pulling left when hands off the wheel  .

A subsequent redo has improved the pulling left problem , but the steering  wheel is senget slightly to the Right when driving straight ahead .

Did alignment many times, the steering wheel always points slightly to right. I have faith in the technician doing the alignment, he seems to be quite proud and thorough with his work. It goes like this: i get some part replace>go to alignment>replace another part>do another alignment.

Anyway, the steering rack is actually not the culprit. It was a bad front wheel bearings on both sides. Had to diagnose it myself because the bearings does not show usual bearing problem (wheel freeplay and grinding noise) and most workshop prefer not to spend much time on it. The only symptoms I experience is occasional clinking noise coming from the brake pad clips and rhythmic thumping noise when cornering to one side.