2002 SL1 Auto 1.9L Eng is making a chirp/click noise that changes with rpm, belt is off and still makes noise. It appears to be coming from #4 cyl. area of head or intake. I first thought it was a timing chain issue but it's coming from the back of eng.
There is a round piece on intake with electrical connection on top (maybe egr) The sound is strongest in this area. Or do you think it is a possible crack in flywheel.

 

Sure kyjones46 it could be .... it could be anything smith_angie.

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