I bought a new mazda 3 in June or July 2007 and have had no problems until now. when I accelerate past 30 a toward 40 and above the care shakes. when I slow up or come to a stop it does not shake. I just put new tires and had it aligned yesterday (11/20/09) so it can't be the tires. I don't know what to do. I will be taking it back to the dealer this week but any ideas of what could be the problem.
Oh I have a Mazda 3 i Touring 2.0L if that info helps
Oh I have a Mazda 3 i Touring 2.0L if that info helps