Quote:
Originally Posted by Joe01ZX2 I had the hood up while it was making the squealing noise and took the engine oil cap off, the pressure released and the noise stopped altogether. I put the cap back on, and within a minute the noise was back. |
SWAG: Sounds like something to do with the PCV system (opening the oil cap releases pressure). Check/replace (theses parts are pretty inexpensive) the PCV valve, the hose and grommet.