OK, I parked my car at my house after driving it and I take my girlfriends car everywhere becuase me and her were hanging out. I get home, try to move my car and it doesn't want to go into gear while the car is on, now when the car is off it will go in gear all it wants. I try to put it in reverse while car is on and it grinds, the rest of the gears don't grind, it just doesn't want to go in. The shift fork moves just fine. I don't know what it could be considering I didn't physically do anything different I just parked it...and it was driving fine. Please help me! I havn't taken the transmission off yet becuase its outside and still cold and its a PITA to remove the tranny. I have a 1988 honda civic and its got a b16a3 rebuilt in it. please any info would help i dnt wanna have to change the clutch and still have the problem