2.0 L Duratec HE losing power and missing at low revs - 1.8L / 2.0L Duratec Petrol Engines (Mondeo Mk3) - TalkFord.com

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2.0 L Duratec HE losing power and missing at low revs

lose power misfire egr

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#1 VIC_CAR_POP

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Posted 26 April 2016 - 11:43 AM

I have a 2007 Mondeo 2.0 L Duratec HE Engine that has a new Coil, Leads and Spark Plugs which is losing power and missing at low revs (1,500 RPM).
It starts up fine, first go and sounds perfect after about 2,000 revs.
The engine warning light came on last week, but has cleared.
Has anybody got any answers? Is it the EGR Exhaust valve, it is a Petrol Engine.
Regards Vic.


Edited by VIC_CAR_POP, 26 April 2016 - 11:50 AM.


#2 siruncle

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Posted 26 April 2016 - 07:04 PM

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http://www.fordwiki....Fault_-_Duratec

Just read the above and do the check to make sure that it isn't the above.

 

Its also worth checking vacuum pipes and the pcv valve. You can clean out egr valves with carb cleaner but they are a bit of a pain to get off.




 


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#3 RB2004

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Posted 27 April 2016 - 08:03 AM

Mk4 mondeo has 2 sets of flaps, imrc and tumble flaps.

Check the swirl flaps are working correctly.

At lower revs should be using the longer inlet tract, but at higher revs should be using the shorter tract.

If for some reason the solenoid is stuck and it's using shorter Tract at lower revs then that can cause problems


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#4 paul05149

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Posted 27 April 2016 - 12:40 PM

I take it that the OP has a problem with a MKIII as it is in the MK III section?
Was/is the coil pack a genuine/OEM one as this engine does not seem to get on with aftermarket ones at all and assuming a new one is good may have you going round in circles.

Paul m.
[URL=http://www.fuelly.com/car/ford/mondeo/2001/Texus/756013]

#5 RB2004

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Posted 27 April 2016 - 06:17 PM

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Yep sorry missed that so ignore bit about inlet tracts my misfake


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#6 VIC_CAR_POP

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Posted 03 May 2016 - 09:26 AM

It is a Mk 3 and has started missing at full throttle now.
Thanks for the reply.

#7 paul05149

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Posted 03 May 2016 - 09:42 AM

So what was the situation with the inlet flaps? As many a good engine has succumbed to the inlet flap problem which normally writes a car of this age off unfortunately,
All ignition connections sound are they and plugs gapped ok? As deffo sounds like an ignition problem if car idles ok, but fails under load.
Try and get any codes read but if it (elm) was on last week now off I would put money that was an EGR detect, but no actual fault present as just engine breaking can throw up an EGR 'fault'.
Have you done the 'tube off manifold' test to check flap condition?
Paul m.

Edited by paul05149, 03 May 2016 - 09:50 AM.

[URL=http://www.fuelly.com/car/ford/mondeo/2001/Texus/756013]





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