Well my gears are pretty hard to push in, i have to force them in and it will grind a very LOUD one to mention. i was thinking the pressure plate is dead probably but it only happens during hot weather or if the engine is warmed up. at night or after idle for about 2-4hours i can shift back into gears decently. also maybe clutch fluid? i have already changed the tranny fluids. i have a 98 civic coupe.