caravan sounds rough/newbie

I,m new here and a lady. I don,t know alot about cars, but I have a 1994 caravan that I have had for 2 years and had no problems to speak of with it. I recently had an oil change and the guy offered a free tire rotation, so I took it. Ever since he did that my van has ran rough.No starting problems, ever, just this rough sound. Its almost like its coming from the tires, but I,m not sure. No smoking, always starts, doesn,t heat up and no lights come on. Any idea what it could be? Thank you in advance.:screwy:

If all he did is rotate the tires then the tires are probably out of balance and need to be re balanced , this happens when you rotate from the rear to the front . Usually it will sound like a helicopter as you go down the road . Go to a good tire place and have them balance all 4 tires .

:lol: If all he did is rotate the tires then the tires are probably out of balance and need to be re balanced , this happens when you rotate from the rear to the front . Usually it will sound like a helicopter as you go down the road . Go to a good tire place and have them balance all 4 tires .
Thanks!! My daughter suspected this was what it was, but I wasn,t sure. Whats the going rate for a tire balance job?

Usually it is less than $10 per tire.