This Trooper 2 months ago started a hi pitched squeal in the eng compt. Sounds like vacuum/intake leak. Have checked every vacuumline all intake gaskets finally found if I manually change the pos of the butterfly the squeal stops. Always squeals at idle. If I move the butterfly and it goes into limp mode, Higher idle and reduced power on dash and no squeal. I have cleaned the t-body and replaced base gasket with no change. Butterfly has no rough edges or worn edges that I can see or feel. When driving only squeals at idle. Any thoughts?
Wednesday, December 26th, 2012 AT 1:17 PM