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12-08-2020, 07:19 AM
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Fairmont Ghia
Join Date: Apr 2010
Location: Christchurch, NZ
Posts: 27
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So the wife's 2007 Focus made this odd noise after turning off the engine. It went on for about 2minutes and stopped with solid clonk like a solenoid closing. 2litre petrol, no check engine lights, my thought was the idle control valve.
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Now 2009 Fiesta Zetec (the daily) 2007 SY Territory Giha (the weekender) Previously 1991 EA II Fairmont Ghia, which was fun while it lasted, and in the dim dark distant past a Mk3 Cortina XL facelift, with the 2l pinto |
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12-08-2020, 10:57 AM
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Chairman & Administrator
  
Join Date: Dec 2004
Location: 1975
Posts: 107,288
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Can't playback the audio it just gives an error.
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 Observatio Facta Rotae
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12-08-2020, 07:54 PM
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#3 | ||
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Fairmont Ghia
Join Date: Apr 2010
Location: Christchurch, NZ
Posts: 27
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I'll try again, hopefully the link work this time. Any thoughts on the source and/or course?
https://www.youtube.com/watch?v=uhf2tiGDv6g
__________________
Now 2009 Fiesta Zetec (the daily) 2007 SY Territory Giha (the weekender) Previously 1991 EA II Fairmont Ghia, which was fun while it lasted, and in the dim dark distant past a Mk3 Cortina XL facelift, with the 2l pinto |
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13-08-2020, 08:15 AM
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FF.Com.Au Hardcore
Join Date: Sep 2005
Posts: 1,380
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Not sure about the Focus - but quite a few cars are designed to do this. Pretty sure it's part of the fuel/emissions system ie fuel purge solenoid shutting off after it's done it's job.
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14-08-2020, 06:58 AM
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#5 | ||
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Fairmont Ghia
Join Date: Apr 2010
Location: Christchurch, NZ
Posts: 27
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Thanks for the thought. It sounds like something is being modulated. For a evap/purge I would have thought that a valve would be held open and it would be pretty quite.
Cheers
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Now 2009 Fiesta Zetec (the daily) 2007 SY Territory Giha (the weekender) Previously 1991 EA II Fairmont Ghia, which was fun while it lasted, and in the dim dark distant past a Mk3 Cortina XL facelift, with the 2l pinto |
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15-08-2020, 08:54 PM
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#6 | ||
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Starter Motor
Join Date: Aug 2011
Posts: 8
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Fairly common for the drive by wire throttle motor to cycle after shutdown. They will occasionally do a self test but some do it more often for whatever reason. Feel for a slight vibration on the throttle motor when you can hear the noise.
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16-08-2020, 01:07 PM
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#7 | ||
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FF.Com.Au Hardcore
Join Date: Jun 2009
Location: Adelaide
Posts: 1,024
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Mine's not so loud, nor does it run that long! But I have a similar sound, but sounds more cool, like a little jet engine spooling down.
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XG Falcon Ute, XE Fairmont Ghia & BA Mk II Falcon SR |
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30-10-2022, 04:14 PM
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#8 | |||
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Starter Motor
Join Date: Oct 2022
Posts: 1
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Quote:
+1 Feel like a jet pilot pulling in. 07 LT with 2L petrol |
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2007 Focus noise after engine off
Linear Mode
