rb20det whining noise. HELP!

[volcomskater773]

So the rb has been running fine for a good while now. The other night I started it and I get this really weird screech/whine noise [not the average belt screech] that doesn't go away and gets high with revs. While driving it sounds like either a supercharger or a dyno. It sounds like its coming from the front more over by the alt. or water pump area. I'll try to upload a video but in the meantime I would appreciate any advice. Where should I start looking?

[preston240sx]

sounds like one of the timing belt pulley's has a bearing going bad .... there like 30 bucks each pretty cheap fix

[volcomskater773]

That crossed my mind. Which should I try first? Idler pulley or tensioner pulley?

[preston240sx]

i would just replace both while your in there ..... just in case you choose the wrong one ...

[R32ONP]

yeap mine had a noisy tensioner AND idler...take them off and spin them u will hear them lol plus u notice it alot more with the cam cover off and running