I here a faint noise as I drive,as the revs pic up i here the tapping quicker, to me it sounds like the lifters but im not sure because I have Hyundai in paarden island sort out the same noise which they said was the pulleys so they worked on that but i am still not happy I want my engine to be dead silent and I am tired of taking it back to them over and over again for nothing, I just wish i could find someone to trust to permanently work on my car.