Hello, have an o2 sebring with the 2.7...the oil light flickers at idle.. so i pulled the sender.. checked the psi and had 25 psi hot.. had 70 psi at 3k rpm.. replaced the switch and the light still flickers.. not all the time tho.. and the hyd tensioner knocks.. we change it and it was a lot quiter.. now its a light tick sound.. anyone else have this problem with thier 02??