i have a 02 blazer that had bad engine mounts when i bought it so i had new mounts installed, now when i start the engine the exhaust flange hits the frame and when i put it in drive and take off it hits the frame but only on the passenger side, the driver side has lots of room.I took it back to see if they could fix it , they said they needed to do some research to see how to fix it , anyone ran into the same problem?