95 Civic Lx - 5-speed. My dad is obsessed with getting my air conditioning back up, so today he threw a few cans of A/C crap into the system. He told me to take it around the block. As soon as I put my car in gear, my whole car started shaking. Once I took off, every few seconds I'd stop accelerating and it sounded like the air I had just put in was trying to explode out under the car. I turned off the air so I could make it home. Any ideas as to what may have caused this problem? Thanks.