I have a 1996 N reg' Ford Escort 1.6 16valve zetec.
The problem i have is that the engine seems to rev up to around 2k rev's, stay there for a moment and then drop down suddenly to almost stalling point at 500 rev's and proceeds to dance up and down on its own with absolutely no feet on any peddles. It doesn't do it all the time, only usually after a run down a motorway or when lengthened driving in and around streets when at work. (I use car for work as im a take away delivery driver)
CAn anyone help me? Has it ever happened to you, if so, how did you rectify the problem?
I liken to say that the engine likes to have a sing song every now and again and the rev counter likes to dance along, but thats gotta stop as its using up petrol!!