Car Starts light Shaking

[Bustos32]

Recentaly my 99 Cavalier has light shaking when I am around 70 to 80 mph and it has some shaking just when I am around 65 Does anyone know what could be wrong?

[BlazerLT]

Check you tire pressure.

Tire pressure should be 32psi cold, not hot, completely cold.

If that doesn't help, rotate your tires or get them rebalanced.

[richtazz]

Also check your lug nut torque. Uneven torquing of the lug nuts can cause symptoms similar to a warped rotor and/or out of balance wheels, which is what your symptpms indicate.