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Thread Tools | Display Modes |
19-05-2021, 06:04 PM
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#1 | ||
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Starter Motor
Join Date: Feb 2021
Posts: 11
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Hi all,
I have a 2006 ford focus LS zetec automatic. has been a problem child since we got it 3 months ago. I recently replaced the PCV valve and hose (hose had a massive split). This helped it idle lower round 800rpm, but now it stalls when using the aircon while stationary! the idles is unsteady and the fuel economy is also still rubbish 14L+ / 100kms. when driving its fine but pulling up to a stop the rpm drop to about 400rpm before bouncing back up. if the aircon is on the engine really struggles to maintain a steady rpm. any ideas what might be happening. i had one of these 8 years ago and it was awesome! this one has issues..... which are proving difficult to solve. There are no codes when i scan it. the car has 170k kms any help is greatly appreciated |
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21-05-2021, 09:52 AM
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#2 | ||
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Starter Motor
Join Date: Feb 2021
Posts: 11
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Update: latest issue P2110 code and car goes into limp mode. i took out the TMAP sensor and cleaned it but it didnt help.
i find it curious how its all gone wrong after the massive vacuum leak from the PCV was fixed. Anyone else experienced this? |
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21-05-2021, 10:48 AM
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#3 | ||
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FF.Com.Au Hardcore
Join Date: Sep 2005
Posts: 1,380
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Remove, clean & reinstall the idle control valve ?? There's a few videos on you tube that show the procedure.
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04-07-2021, 02:50 PM
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#4 | ||
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Starter Motor
Join Date: Sep 2019
Posts: 10
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Have had trouble in the past, with the 2006 LS focus fuel consumption. My posting in another forum section covers the matter. Look for my name to find it.
My problem was due to a faulty thermostat, which, because the car was used on short runs over a long period of time, allowed significant build up of crud in the throttle body, with the motor running cold. I believe this is a Focus problem. Cleaning the throttle body fixed the problem, but the related matter of high revs on startup was not addressed. Will look into this soon. prumpfy. |
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04-07-2021, 04:23 PM
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#5 | ||
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FF.Com.Au Hardcore
Join Date: Jul 2008
Location: Melbourne
Posts: 804
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I would also look for vacuum leaks in the various intake manifold tubes and the Exhaust gas reticulation valve given the age of the car
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15-07-2021, 04:21 PM
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#6 | ||
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FF.Com.Au Hardcore
Join Date: May 2016
Posts: 1,828
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I had one of these once and one day out of the blue upon fire up it revved up pretty hard tried all the usual fixes and gave up in frustration and dropped it of to a local mechanic. Turns out there is a s shaped hose behind the intake manifold which must be a vacuum hose of sorts this was blown out. After replacement it was as right as rain.
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LS Focus rough idle poor economy
Linear Mode
