Air leak

[damiandvs]

Hi guys replaced the cam shaft positioning sensor yesterday since then I can hear an intermittent air leak or something, sounds like when you pull the dipstick out while the engine is running kind of noise like a little squeal

 

[Legend@wheels]

Its normal if it make that sound only when dipstick/oil cap is open
Pretty sure everyone have it ( in these cars atleast )
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[Jimmy]

Its normal if it make that sound only when dipstick/oil cap is open
Pretty sure everyone have it ( in these cars atleast )
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He's saying it sounds 'like' that noise, not that that's what the noise is

 

[Legend@wheels]

Oh right ,my bad
Embarrassment LOL

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[damiandvs]

It's comes and goes when cold. Replaced the camshaft sensor and cleaned some sensors so will receive check the work I did. Put new one rings on the breather valve just in case. What's the best way to find a fault like this

 

[Foxspeed]

spray round with some brake cleaner...if theres a leak the engine revs will soon change if its on the induction side

 

[wr6warren]

did you ever find out what this was? Think I’ve got something very similar myself!