KuzuRyuuSen

hi guys, i just want to know how often you do wheel balancing. i haven't driven my 8 on highway for almost 2 months. when i drove my car, i run about 105 mph and the car start vibrating, then i tried to push it up to 140 mph and it's really horrible. the vibration is getting really worse, i didn't even dare to push more becuase of that crazy vibration. do you think its the wheel? 'cause as i remember, i ever run at 134 mph very smoothly. my second guess is it might be the tire pressure, 2 days before i drove my car to the highway i got warning light for the tire pressure, since i run out of gas, i just drive the car to the gas station. during the trip, the warning light goes away and up to now i never get that warning light again.

yiksing

Only a shimmy steering wheel needs wheel balancing and it normally occurs at about 100-120 km/h. If it vibrates all over the speed range then something else is wrong.

Go48

Not a problem. Driving like that you won't be around long enough to have to deal with it.

KuzuRyuuSen

i agree with you, that's why i tried to push my car a little bit more. but you know, it's surprisingly really bad. i really don't have enough time to take my car to the car service or monkey with it lately so i'll let you know once it's fixed.

Im_DANomite

iTrader: (1)

usually with balancing issues...you will feel it around 50-70 mph. any faster and it's probaby something else. tires cupping or bent wheels. ball joint play, who knows. 100+ mph is just too fast to be balancing issues.

beachdog

Car hasn't been on the highway for 2 months. Bridgestones? Could be flat spotted.

QBallz

The tires cold pressure is low if the light was on and then went off after driving it. I once had some stupid place lose a lugnut and replace it with a heavier one and not say anything. But you could feel it at about 70-80 mph.

KuzuRyuuSen

hi, i just checked my tire pressure today, it dropped 10 kPa only compared to the standard in the manual book (220 kPa), so my tire was 210 kPa when i checked it. i don't think that was the problem. but i added more pressure today to 220 kPa. wanna test it tomorrow maybe, definitely not today.

my tires are stock, so don't know much about them. even though i didn't drive my car on highway, i drove it around the town everyday. but that could be a problem too i think, i left my car during summer(may-aug) for about 3 months going back home to my country and no one drove my car.

beachdog

Between the low pressure and sitting for 3 months they are flat spotted. Should go away with regular use and keep the correct pressure.

Low profile tires don't hold a large volume of air. It doesn't take a loss of much air for the pressure to drop significantly. They need to be checked weekly. Especially as the weather gets colder.