I get this loud fast tapping noise coming from my engine when im stopped and my idle is 600-800.Its a 99 Civic EX. Everyone says my valves are loose or something, so im going to get a vavle job. I have 83k miles on the car. I/H/E too. About how much does a valve job run and what exactly do they do when they fix them? Will I notice a difference in the throttle reponse at all, I feel my car is less reponsive since the tapping noise started. Im going to get my timing belt changed at the same time. Might as well. Im trying to sell my car and get a GSR swapped Hatch. Yeah! Tell me your opinion.