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Fiesta-Si.com • View topic - lumpy, bad or rough idle solution!!!! (1.4)
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PostPosted: Tue Mar 24, 2009 7:52 pm 
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Joined: Mon Mar 09, 2009 9:18 pm
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right ive been working my bum off today....

ive now found my rough / lumpy idle problem! i went through the idel control valve, lambda sensor and maf, i have came to the conclusion that there is a emmisions control valve ( little black plastic thing, with 3 hoses, 1 coming from the rocker cover, 1 goes to the breather in the air box and the final one is a vacum hose) this vacum hose is the problem ( the one that fits in the bottom of this plastic vlave ) if you disconnect this and put your thumb over the end it should stop your lumpy idle!! ive got a new valve from ford for £20.01 + vat!!!

i will get some pictures up of what im on about, trust me im 100% sure on every 1.4 with lumpy idle this little buger is your problem!!

hope this help's!!!

thanks


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PostPosted: Sun Oct 18, 2009 11:27 pm 
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Location: Bournemouth
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ive got that problem, after a little while on tickover it pulses up and down?

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PostPosted: Thu Nov 19, 2009 10:28 am 
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yeah thats it.. replace the part :thumbsup:


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PostPosted: Thu Nov 19, 2009 2:40 pm 
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Joined: Wed May 20, 2009 3:07 pm
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mine sometimes has a wild one and goes up and downt he revs or the throttle seems to stick, ive been told its a steppermoto or something

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