Hey guys, I drive a 99 Galant and for some reason, whenever my car is in park, in brake, or driving over 90 mph, it starts to shake! I have no idea what this could be. I got a tune up and a wheel alignment done along with new tire rods. Anyone know what else I might have to fix? Maybe a misfire?

 

you have 2 problems. what would make a car shake in park wouldnt do it at 90mph. is the ses light on? are the rpm's going up and down when it acts up in park? shake at 90 usually means bent rim, bad tire(s) bad axle shaft, or bad alignment. any serious wreck damage in the vehicles past??