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Rough Idle When Cold


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#1 pdg33

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Posted 07 December 2013 - 11:08 PM

just picked up my 2003 focus zetec today.

 

the idle runs rough (jumps up and down) when the car starts from cold - i read elsewhere on here that this can be 'normal' in some cases but i've never heard of that before - surely not?    

 

it settles down once the engine is warm or when the accelerator is blipped a few times.

 

any ideas?



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#2 mick85

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Posted 07 December 2013 - 11:15 PM

Try cleaning idle speed control valve with carb cleaner

#3 pdg33

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Posted 07 December 2013 - 11:17 PM

any links to a how to guide for that, is that likely to be the problem then?       where would i find the idle speed control valve - is it easy to access?

 

i also haven't any carb cleaner - would anything else work like wd40 or electrical contact cleaner?



#4 mick85

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Posted 07 December 2013 - 11:23 PM

Carb an throttle cleaner is best if ur best bet be buy Haynes manual if u ain't got clue it be points less me tryin to explain it google give u a good picture so u at least get an idea wat looks like


#5 eliaskok

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Posted 08 December 2013 - 12:27 AM

Here is a guide from another website on how to clean idle air control valve.

 

http://www.saxperien...ad.php?t=174710




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