Cover everything u can then spray behind the tensioner and the nut infront with a penetrating oil spray. Wait a few hrs and try again.
If this doesn't work then attach a Long pipe, about 24 inches, at the end of your ratchet. Hold the ratchet against the nut while u push the pipe on the other end to loosen it very easily.
This is called increasing your torque.
How do you change the serpentine belts on a 99 chrysler sebring.I can't loosen tensioner.?
then you have to replace the tensioner
