One problem related to engine grinding noise has been reported for the 2004 Honda Civic. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2004 Honda Civic based on all problems reported for the 2004 Civic.
Manual transmission Honda Civic lx 2004 reaches rattling/grinding noise when reached 2000 rpm or so. The noise is loud and downshifting becomes very rough. The car slows down when not pressing accelerator. Even when in neutral the car sounds with a rattle. Only when the clutch is pressed does the sound minimize. Car feels vulnerable when driven like this. It's mainly due to the noise, and feeling of the car. The input shaft bearing is the problem. Many reports were blogged and diagnosed. The car still runs. Unfortunately it's not clear for how long.