2008 For sale: Sierra 2008 The car has a tapping sound in the engine. It runs fine, goes and comes. The transmission and chassis are in good condition, and the flooring has just been renewed, but it still needs a rear bearing replacement. The car has been repainted aesthetically by the previous owner. New inspection and registration. The car is open for offers, and I hope that no one undervalues it and that only serious buyers get in touch.