Startup is normal & smooth for first few minutes. Then a hissing sound starts ( constant, not pulsing ) seems from passenger side of engine, and engine idles rough-ish ( runs rough-ish too ). ODB scan tool has no codes to show, no check engine light either.
? something vacuum related, PCV valve ?
Attempt at video link here:
https://photos.app.goo.gl/dqfam5dRiengvn9W8
seems like clicking on the video on google photos page will open it full screen with audio.
? something vacuum related, PCV valve ?
Attempt at video link here:
https://photos.app.goo.gl/dqfam5dRiengvn9W8
seems like clicking on the video on google photos page will open it full screen with audio.