Thanks for your replies. I recently changed the tires from original japanese 175/70/R14 to 195/70/R14 Yokohama blue earth. The problem did get worse after the tires..but according to the tire seller, Yokohama are soft tires..Secondly there is no padding that I have installed, need to get it checked as I bought the car used, but as I said this problem has surfaced suddenly with no change expect tires..