I would like to know how to change this part as I have had this problem before, i.e. the car over-revs when I am slowing down.
I would appreciate any help out there. My Dad used to help me with my cars when he was alive, but now I need to do this by myself.

Gill (ever-so-hopeful), August 2008

having another think about this,ive remembered something.early zetec's were prone to damage to the throttle position switch(sometimes called a potentiometer) and did give the symptoms described.although my advice about code reading it stands,said part is located on the air intake.difficult to be more precise not knowing car details.suggest buying a haynes manual.

caine, August 2008

I know what a potentiometer is,but I'm at a loss to think what u mean.So if you'r going to diy it,then go to argos and buy their rac code reader.£40.(garage will easilly charge you this much) and follow directions and plug it in and read the fault codes stored in the memory.once u have the fault codes then u will have a much better chance of fixing the fault.oh and next time,make/model/engine size,cc/year and fuel type please,and is the engine managment light on.

caine, August 2008