High speed unstable problem

[ahtim]

Hi guys, my 1m currently doing 3000km, but I don't know why if I am doing hard acceleration on 3rd gear after like 140km high rev, it feels really unstable, the steering wants to move left and right. Anyone know whys wrong with it? I am running all pss, stock tyre pressure

Thanks in advance

[MDORPHN]

Check you alignment.

Neil

[SHFT]

Originally Posted by MDORPHN

Check you alignment.

Neil

or it could be that your wheels need to be road force balanced

[Artemis]

Take a quick look at this: http://en.wikipedia.org/wiki/Tire_balance

"Vibration in cars and light trucks occurs for many reasons. Common reasons are poor wheel balance, imperfect tire or wheel shape, brake pulsation, and worn or loose driveline, suspension, or steering components. Occasionally and rarely, one will find foreign material stuck in tire's tread causing vibration e.g. road tar in summer."

[Amnizu]

Stop hitting potholes.

[bdaddylo]

Originally Posted by MDORPHN

Check you alignment.

Neil

+1

[MDORPHN]

As I read OP, his issue was not a vibration but that the steering wheel pulls right and left. This suggests to me an alignment, not a wheel balancing, issue.

If I had to guess, he probably has some toe-out in front.

Neil

[ozinaldo]

Originally Posted by MDORPHN

As I read OP, his issue was not a vibration but that the steering wheel pulls right and left. This suggests to me an alignment, not a wheel balancing, issue.

If I had to guess, he probably has some toe-out in front.

Neil

+1. Last week I had a strong vibration (steering wheel) around 120-130 km/h speeds and there was no apparent reason that to happen which is usually the case with loss of balance. Took the car to a tire/wheel shop, after fronts got balanced it was totally gone, like new again. That's the issue with loss of balance. Pulling right or left can't be balance or merely balance, alignment is number 1 suspect.

Also OP: did you check this leaning right or left issue with different gears? Did you check it like this: on an empty/safe and straight road without visible camber, at a decent speed, leave your hands off the wheel and hit the brakes. Where does the car lean? Repeat it and see if that's the same.

Collect these data and just go to a good wheel/tire shop, 99% it will be resolved pretty quickly.