What might be causing my Ford Mondeo to misfire intermittently?

My car is a Ford Mondeo 2.0-litre petrol Duratec, mileage 200,000. Problem is like a misfire but intermittent. Most noticeable under load. Any ideas?

Asked on 5 September 2010 by slimtim

Answered by Honest John
Might be the inlet manifold swirl flaps coming adrift. If one breaks off and gets ingested by the engine it's goodbye to the engine.
Similar questions
I've got Ford Mondeo 2.0 petrol and it stopped dead. I got it going again and managed to get it to a carpark, but could hear a tapping sound and it was misfiring. What could this be?
I have the 2.0-litre petrol 2001 Ford Mondeo Duratec. It has suddenly started to misfire and bring out an awful eggy smell, then the engine light came on and it started to run roughly. I've replaced the...
My wife's Fiesta was slightly lagging a bit on take off so I gave the car a service, the usual like oil air filter plugs. After installing the plugs the car was misfiring. So I have done a full check on...
Related models
Very good to drive. Refined and comfortable to travel in. Massively roomy cabin and huge boot. Reasonable value. Efficient ECOnetic and EcoBoost models.

Value my car