it is probably noise from the valves. The VX has a Dual Over Head Cam with 4 valves per cylinder using a mechanical "Direct attack bucket tappet" configuration. if there is too much clearance you will get a ticking noise.the piston would make a knocking noise,and it would sound like someone beating on the block with a hammer. so if it is ticking not knocking you need to get your valves adjusted. it is supposed to be done every 60,000 miles. shawn
Reply With Quote