maybe smeone here knows the problem im experiencing with my 99 civic ex. when im driving at a speed of 50mph and up, when i step on the brakes lightly the steering wheel starts vibrating. i was thinking maybe the pistons needs some cleaning, balancing or alignment. im not sure, so maybe someone can give me some pointers on this issue. thanks in advance.

 

you recently change your brake pads? Im gonna say it is a warped rotor or 2. I just had the same issue. Rotors changed, no more shaky shaky.

 

also, your car could need a wheel alignment
i had the same problem
went to my local tyre place and got a wheel alignment done and it was perfect

 

I had the same problem but it was both of those. First of all the steering wheel would start vibrating just when driving fast without braking but then I got it aligned so that stopped but since my rotors are warped, when I break on the freeway it shakes horribly, its actually kinda scary.

 

dito... if it shakes when you break then definatly warped rotors......

 

Hey new to the forum but check and remove all the rust behind the rotors when putting new on and get a good rotor not just cheap white box ones BIG difference
good luck

 

I had a similar problem you should check the tie rods on your car thats could be the cause

 

Your rotors need to be turned (machined) or replaced (if they would be too thin after being machined).