Join Date: Feb 2006
Location: Sydney, Australia
Surprised you cant move the flap. Could be bound against the abs housing which may have been distorted with heat. Try pulling at the housing at the top while you are trying to free the flap.
If you get movement then oil the axles of main flap and butterfly flap below with oil drops on a thin wire and put a touch of grease inside the housing where the top corners of the main flap rest.
Vale Mr Chip 1998-2015