rite i got a prob with the girlfriends car and cant work it out atm if any one can help please
its a ford fiesta mk4 5 door 1.4 zetec s 16v
it judders when she is pullin up a hill at time.
it fells like she has cruise control as the revs dont drop if she is at 3k revs the car will stay at that and carry on driving for a while.
if she dips the clutch the revs increase or just stay at what she left them at.
so have had a full service on the car and cleaned the TB out as was caped up and the Air Idle valve as well but no luck?!?!?!
could my air idle valve be to blame or something else?