Passenger Door Knocking

[pete_rawli]

Whenever the door is fully opened, you only have to move the door slightly and there is a knocking noise? Happens when you move it both ways, and I cannot for the life of me see where it is coming from, but it is really loud. Anyone have any ideas? It happens when the door is fully open...
Thanks

 

[ShaunL]

Will be the check strap. Look down by the hinges, a rod mechanism going into the door. Probably worn due to lack of lubrication. Try giving em a good spray/grease up.