I have a very strange noise after I turn the engine off. It is coming from inside the valve cover. Its starts out as a rather fast clicking noise, and then continually slows for about a minute or two and then quits.
Definetly near cylinder 2 or 3 area on an I-6 242. This does this every time the engine is turned over. Does not matter if hot or cold. It doesn't even have to start, just turning it over causes this noise. However the faster the engine was reving when shut off causes the ticking to be faster.
I plan on pulling valve cover off to inspect it tommorow, but was hoping someone had run into this before, and could give me some tips on what to look for.
....Just a thought...If a Fuel Injector is 'leaking pressure' would it possible click like this after the engine is shut off to relieve the pressure?