Nightsabre
New Member
When I start up my 1994 SC400 there is a continually ticking or clicking sound from the engine when I open up the hood. It is a rather quick and to me it sounds as if a specific component is rotating and tapping on something. But when you rev it the sound just seems to disappear completely and when you let it idle the sound returns. I have used a mechanics stethoscope to determine where it is loudest. Unfortunately I am not too familiar with engine terminology. I have seen a full diagram of the engine but cannot find it now. If someone would be able to locate a diagram for me I can point out the part. Does anyone have any ideas?