interele Posted March 6, 2010 Share Posted March 6, 2010 Thank you for reading this. It's a long story so pull up a chair and pour yourself a drink and listen to my tale of woes. I have posted this problem to a couple of Mondeo forums, so my apologies if you have already seen this somewhere before. Also the car has now been to the garage 3 times now and it is still rubbish. It is getting to a point that I am thinking of selling it and buying an Austin Allegro ..... ( and believe me I had one in the 1980s and it was better than my Mondeo at the moment ) OK Mondeo 04 2.5 V6 Ghia X Auto Start it up in the morning - for the first mile it goes like stink Then it dies - it won't rev over 3000 and won't change gear Pressing the gas does nothing until it kicks down and you end up going slower - letting up on the gas won't make it change up again After about another mile or so it picks up and is OK but a bit gutless for a 2.5 Sometimes it goes really well- the engine purrs and fuel consumption is 20 - 25 + Sometimes it doesn't - it won't go over 3000 rpm the engine sounds awful ( loud and hollow ) and fuel consumption goes down to 10 mpg ish Now the interesting bit Drive it around until it's hot and park up for half an hour or so then start it up again - it absolutely flies for about 5-10 miles then it goes back to being a bit random. Also if I get stuck in traffic for a while it goes really well afterwards for a mile or so So far it's had a full service, a ECT sensor and a MAF sensor. It passed it's MOT 3 days ago and the emissions were spot on I have been over it with a magnifying glass looking for spit hoses to no avail Has anyone had this or know how to fix it Ta M Quote Link to comment Share on other sites More sharing options...
chris bowman Posted March 7, 2010 Share Posted March 7, 2010 have codes been read by the garage. there are people on the site who can decifer them? Quote Link to comment Share on other sites More sharing options...
interele Posted March 7, 2010 Author Share Posted March 7, 2010 have codes been read by the garage. there are people on the site who can decifer them? There are aren't any codes, thats the odd thing. The garage have plugged their computer in and the cars computer answers "Everything is fine, thank you" It's got to be temperature related somehow.... I was driving around this afternoon and it was terrible. I have been home now for about 45-50mins and I just nipped up the road and it was so fast it was scary. Tomorrow it will be rubbish again after the first mile It's driving me nuts ! :-( M Quote Link to comment Share on other sites More sharing options...
artscot79 Posted March 7, 2010 Share Posted March 7, 2010 There are aren't any codes, thats the odd thing. The garage have plugged their computer in and the cars computer answers "Everything is fine, thank you" It's got to be temperature related somehow.... I was driving around this afternoon and it was terrible. I have been home now for about 45-50mins and I just nipped up the road and it was so fast it was scary. Tomorrow it will be rubbish again after the first mile It's driving me nuts ! :-( M has anyone changed the engine temprature sensor? doesnt always throw a code and could be telling the ecu the cars hot when its cold and cold when its hot theres also the slim chance its gearbox related the mrs dad had a zafira auto with almost similar symptomsd it turned out to be the computer programming for the gearbox its unlikely but a possibility ide be looking at the temp sensors strange theres still no codes Quote Link to comment Share on other sites More sharing options...
interele Posted March 7, 2010 Author Share Posted March 7, 2010 It's had a new engine coolant temperature sensor It made no difference at all !! M Quote Link to comment Share on other sites More sharing options...
artscot79 Posted March 7, 2010 Share Posted March 7, 2010 It's had a new engine coolant temperature sensor It made no difference at all !! M it could be either the cat or the lambda sensors but you say the emissions are fine i think its time to head to ford so they can check it on live data Quote Link to comment Share on other sites More sharing options...
GrahamH Posted March 8, 2010 Share Posted March 8, 2010 it could be either the cat or the lambda sensors but you say the emissions are fine i think its time to head to ford so they can check it on live data just a thought but.... is the fuel tank vent blocked? I had a similar prob on a car years ago and the vent was blocked so pump couldn't pull fuel out of the tank as a vacuum depeloped after the car had been running for a few minutes. Let the car stand and air leaked in to the tank. Ran fine at first then happened al over again. Quote Link to comment Share on other sites More sharing options...
interele Posted March 9, 2010 Author Share Posted March 9, 2010 just a thought but.... is the fuel tank vent blocked? I had a similar prob on a car years ago and the vent was blocked so pump couldn't pull fuel out of the tank as a vacuum depeloped after the car had been running for a few minutes. Let the car stand and air leaked in to the tank. Ran fine at first then happened al over again. I've tried driving a bit , then stopping and opening the fuel cap and so on and it doesn't make any difference :-( M Quote Link to comment Share on other sites More sharing options...
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