high speed problem..

Xantia94 · Unread post by **Xantia94** » 28 Jul 2010, 16:27

what could be the problem? my car run approx. 120~130 km/h and it shakes alot.. i mean ALOT.. usually it can go 140~150km/h smoothly.. some advice is appreciated..
cheers

spider · Unread post by **spider** » 28 Jul 2010, 16:37

Usually wheel balancing is the first thing to try. I bet a weight has come off. More likely with the adhesive ones (typically fitted to centreless wheels)

120 kph = about 70 mph so should be OK.

Xantia94 · Unread post by **Xantia94** » 28 Jul 2010, 16:51

planning on that, hope it is the weight problem.. nothing more.. haha

thanks..

Unread post by **Peter.N.** » 28 Jul 2010, 18:51

...or it could be ply seperation causing a bulge on a tyre.

Unread post by **xantia_v6** » 28 Jul 2010, 19:22

Does the shaking stop if you ease off the throttle at the same speed, or do you have to slow down? If the former, then it could be a bad engine mount, the V6s certainly go like that, at about that speed. Wheel balance always shows up at lower speed, tyre separation usually at lower speed.