First time post. I am looking for some help please in regard a problem with my Mondeo. it's a 2009 2.0 TDCI Titanium with 30k miles.
When I floor the throttle at around 2000-3000 rpm, usually in 3-6th gears, (mostly 4th and 5th and usually from about 2ooorpm), the rev's suddenly rise much quicker than you'd expect by about 500rpm, before dropping back and then increasing again. On partial acceleration and from standstill it's absolutely fine.
It's almost like the clutch is slipping but given that the revs drop again without lifting the throttle, I am thinking it might not be the clutch. I had it serviced at a main dealer last week and asked them to look at it, but they say the clutch is fine.
I'd read elsewhere about leaking hoses etc., and will do that at the weekend, but in the meantime I'd welcome any ideas any of you might have on possible causes?