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artscot79

normal idle speed

8 posts in this topic

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

Yours seems a little low :)

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

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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

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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.

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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

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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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