Hello HAF, my accord 98 with auto transmission, 4cylinders experience thumping when braking. I don't know if it is the engine mount(sitting) or transmission mount(sitting) that is causing this thumping. The transmission shifts smoothly in all gears. Please help any suggestion. Also my accord 1990 model with auto transmission make a grinding noise when in 'park' and when shifts to 'neutral'. The noise reduce when shifted to other gears. Any idea on what causes it? Thanks