Topic starter
When we pull up at the lights our mondeo revs on for a bit then settles down to a normal idle.
Looked at the net and changed idle control valve. Next step is to look for a split hose.
Question is am I looking for a suck or a blow?
Posted : 06/01/2013 7:11 pm
They call it a 'blow' but it's almost always a suck.
Posted : 06/01/2013 7:14 pm
An air leak on a petrol at idle will suck .
Try spraying some carb or brake cleaner on vacum/breather hoses with the engine idling . Listen for a change in engine note and note where you're spraying , this is where the air leak will be if there is one .
Posted : 06/01/2013 7:15 pm
Faulty gearbox speed sensor could also cause that, common on Fords.
Posted : 06/01/2013 7:48 pm