The issue with my car is with a metallic tick noise emanating from the engine specifically from 3000-4000rpms when cold or warm, otherwise the engine is silent. It is most noticeable when letting off the throttle while in gear. The current mileage is 145,000kms or
90,000miles. The problem started after getting my intake manifold gasket replaced 2 weeks ago, however I cannot understand how one would relate to the other. I don't believe that its piston slap however am open to suggestions. I've had one mechanic tell me that the engine is gone stating that the crankshaft was bent, pistons were gone, ..., with hearing this I didn't believe that this individual was correct so I had another dealership test for compression, the figures were 200,200,200,205 which basically means the engine is in very good shape. So what could this noise be??, I'm relatively sure its not an exhaust shield rattle, I don't believe its a tensioner issue because the issue is still there when the engine is warm.Otherwise I have had the wires and plugs replaced.
Anybody have any ideas, or similar experiences??
Thanks Gerald