ford mondeo oil consumption

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Mon 21 Jun 2004 23:03
ford mondeo oil consumption - stressed eric
I have serviced my friends 1.6 Mondeo Zetec for a number of years, and it has now failed the MOT on high Lambda and Co emmissions; also high HC readings. I am of the opinion that one or more piston rings have failed, but none of the sites I have visited have recorded any similar problems, although another friend commented how he has suffered the same fault. Other than the usual Mondeo problems, is this a known fault? No running problems recorded.
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Mon 21 Jun 2004 23:27
ford mondeo oil consumption - dieselhead

CO and HC are high so must be running too rich as confirmed by lambda >1. Suggest check air filter, plugs+leads, switching of lambda sensor, and air leaks into exhaust, temperature sensors etc.
With correct fueling lambda =1 and CO at 0.3% , if the HC still too high then look for piston ring, valve guide problem etc. Think it's unlikely unless its a mega miler.
Ford specialists here might know better.



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Mon 21 Jun 2004 23:52
ford mondeo oil consumption - Civic8
As has been said,I doubt piston ring failure.Lamda sensor controls co emissions would be inclined to replace it.if you still have a prob then you can only get checked out.
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Tue 22 Jun 2004 02:03
ford mondeo oil consumption - stressed eric
Thanks for the info so far, although my mate has also reported unusual higher oil consumption, blue smoke... I will try a new lambda sensor, as this seems another common problem at 100K or more (105000mls)but I will let you know. thanks again all..
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