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1.8 Duratec Rough Idle Grr!


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#1 b44dam

b44dam

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  • Name: Adam
  • Ford Model: Mondeo + Focus ST
  • Year: 2008
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Posted 21 July 2012 - 05:50 PM

hey fellas,
bought a 1.8 duratec 2001 mondeo yesterday, all is fine except somestimes it hunts a little,
when first started idles hight like normal, the the auto choke cuts out like normal, idles fine, then after about 5 mins the revs fall down to just below 800 and it starts to hunt a little bit,
if you rev it, it will idle fine, then after a while go down to 800 again.

another think i noticed, when i rev it and let off the revs take a while to come down.

adam

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#2 b44dam

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Posted 21 July 2012 - 05:56 PM

oh and sometimes its hard to start.

#3 fintious maximus

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  • Name: Andy
  • Ford Model: Modeo Estate 2.0 Zetec
  • Year: 2001
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Posted 21 July 2012 - 06:50 PM

Seems fairly common on this age of Mondeo (mine included) that they benefit from new plugs, leads and coil pack. Mine was a bit rough and hunting when I bought it and changed above and it was fine. Just started to hunt a bit at 2k rpm again but it did have an ebay special coil pack on so now looking at getting a better one. Hope this helps

#4 b44dam

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Posted 22 July 2012 - 06:18 PM

i changed the coilpack for a genuine one, new set of plugs, still dont seem to have changed it, i was thinking maybe the idle control vale? when i un-plug it, it makes no diffrence to the running of the car what-so-ever. adam


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