VeeKay

I just bought my 1994 GS300. I love it but every time I'm on the highway going around 60, the whole car starts shaking. Does anyone have any idea what it could be?

sputniknyc

iTrader: (2)

The wife??
JK!
Check to see if your wheels are balanced.
Road forced balance may fix it.

Welcome to CL!!!

smuv gs3

iTrader: (1)

Could be warped rotors or a bad hub bearing, if the steering feels a bit loose check out your front end

Caius

unless it's vibrating while the brake is applied then it's probably not a warped rotor....and in my experience hubs usually make noise rather than vibration....I would say it's most likely the wheels out of balance, especially if the vibration comes in at a particular speed (and I'd wager that it will smooth out a bit above a certain speed as well).

Machog

http://www.gsp9700.com/pub/features/StraightTrak.cfm

This should cure it. Tried to get my wheels balanced 5 times before I found a shop in Seattle are that had one of these. Make sure you get all 4 done. Make them show you the results and inteview the guy doing it to make sure he knows what he's talking about. Mine are now perfect at 60-65mph after being terrible for months.

Jmac

Och

iTrader: (3)

Check your brake lines and calipers.

Xeeeeeem

If its a temporary vibration....it could pottentially be your brakes pads stickin due to failure of calipers. To test this, jack up your car...prefferably all 4 tires and spin them with your hands to see if there is resistance.