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Help End My Nightmare Before Christmas!! Idle Issue Fiesta 1.4 Zetec

Zetec 1.4 fiesta idle shaking

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31 replies to this topic

#31 sazwahhh



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  • Name: Sarah
  • Ford Model: Ford Fiesta
  • Year: 2003
  • Location: ValeofGlamorgan

Posted 17 November 2013 - 03:32 PM

Ok so start with:


HT Leads

Clean idle control valve

Reset base setting of throttle butterfly.


See if that works if all else fails..


Temp sensor

02 sensor (is this the lambda sensor?)


Thanks :) your a star!! I will update in the week hopefully can find a decent mechanic now!



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#32 wase16ll


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  • Name: Tony
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Posted 17 November 2013 - 03:44 PM

your jumping the gun


you 100% need to know if engine is misfiring

if it is then your looking at..


coil pack

ht leads



(start from scratch, dont dismiss anything thats been already changed, faulty new parts/poor workmanship is far too common)


if it isnt misfiring...then an idea of where to look..bearing in mind this can be a lot harder to trace and ideally needs to be done with diagnostics/live data and somebody that knows what they are doing with it ;)


get those emissions tested first as that will narrow things down

idle air control valve

butterfly base setting (should never be touched, but going on the previous bodges, may well have been tampered with)


02 sensors

air leaks

cam sensor

also not forgetting poor wiring/connections are common on focus

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Also tagged with one or more of these keywords: Zetec, 1.4, fiesta, idle, shaking

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