I have an 01 cobra that has been making a squealing sound the past few weeks. It does it on start and when I rev the engine. I thought it was the belt so I replaced it but the sound continues. Found another idler pulley that felt bad so I replaced it but the sound didn't stop. I took the belt off completely and started the car and it still squeals. It sounds like its coming from the driver side valve cover area but I cant figure out what it could be. Any Ideas on what to check for next?