Hello from Poland Guys,
Maybe you will know what is this...
Apart of rattling like a diesel engine on idle my 16' Fiesta ST has that grinding, rattling nosie when revving worm but only between 1000-1300rpm and back when rpms falling down rattles in that range. Do you know what is that? It seems like they were variators (variable valve timing) broken. No such a problem on cold. Someone told me it may be an auxiliary belt but on cold it would not make that noise?
Apogee at 1:00
[video=youtube;z4c7zlS5vqA]https://www.youtube.com/watch?v=z4c7zlS5vqA[/video]
Maybe you will know what is this...
Apart of rattling like a diesel engine on idle my 16' Fiesta ST has that grinding, rattling nosie when revving worm but only between 1000-1300rpm and back when rpms falling down rattles in that range. Do you know what is that? It seems like they were variators (variable valve timing) broken. No such a problem on cold. Someone told me it may be an auxiliary belt but on cold it would not make that noise?
Apogee at 1:00
[video=youtube;z4c7zlS5vqA]https://www.youtube.com/watch?v=z4c7zlS5vqA[/video]