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normal idle speed


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#1 artscot79

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Posted 03 December 2009 - 10:28 PM

hi guys just a quickie what is the correct idle speed when the engines warm on a y reg 1.8 zetec? the dash trick is showing it varying from 690 to 730rpm max

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#2 InstructorPiggy

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Posted 03 December 2009 - 10:51 PM

petrols generally 850-900rpm, little more when auto choke on.

Yours seems a little low :)

#3 artscot79

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Posted 03 December 2009 - 10:54 PM

thats what i thought its under warranty so ill be making a phone call

#4 InstructorPiggy

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Posted 03 December 2009 - 11:01 PM

yeah, sounds like idle valve having a party! :)

#5 artscot79

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Posted 05 December 2009 - 08:28 PM

yeah, sounds like idle valve having a party! :)

well the whole lot a new idle valve plus fitting will cost me the whole of 30 quid so that will be sorted tuesday

#6 stef123

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Posted 05 December 2009 - 08:48 PM

my idle speed is usually about 730rpm which is about right according to autodata which states it should be 700rpm +/-30rpm
this is also the same for the 1.8 petrol too so i think your ok.

#7 artscot79

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Posted 05 December 2009 - 10:16 PM

my idle speed is usually about 730rpm which is about right according to autodata which states it should be 700rpm +/-30rpm
this is also the same for the 1.8 petrol too so i think your ok.

for 30 quid it will be done than i know i dont have to worry about it for a while

#8 artscot79

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Posted 10 December 2009 - 06:08 PM

for 30 quid it will be done than i know i dont have to worry about it for a while

its been changed and firstly the idle sits 730 not 690 and jumping up and down a fairly steady 720-730rpm secondly the car starts perfectly everytime now and its a lot happier and smoother idling so if anyone else has the same issues its worth changing the idle control valve for a new one

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