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machinegirl1969
New User
Jul 22, 2014, 2:23 PM
Post #1 of 7
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Ford Focus rough idle
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2000
Ford Focus wagon
2.0 4 cyl. manual trans.
200,000 km
Hello, car runs fine while driving but when sitting and idling it starts running rough, hesitates and almost stalls. Does this when just started and after running for long periods. Probably would stall if I didn't give it a bit of gas.
Idle control valve maybe? Thanks, Sheri
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Hammer Time
Ultimate Carjunky
/ Moderator
Jul 22, 2014, 2:29 PM
Post #2 of 7
(2364 views)
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Re: Ford Focus rough idle
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Have you scanned for stored trouble codes?
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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Hammer Time
Ultimate Carjunky
/ Moderator
Jul 22, 2014, 2:36 PM
Post #4 of 7
(2358 views)
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Re: Ford Focus rough idle
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Autozone or Advance Auto Parts will read codes for free. Just get the code numbers and post them here.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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machinegirl1969
New User
Jul 22, 2014, 2:39 PM
Post #5 of 7
(2354 views)
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Re: Ford Focus rough idle
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Thanks, I live 70 km from anywhere but, will try and find someone out here with a scanner. Thanks Sheri
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machinegirl1969
New User
Jul 28, 2014, 4:14 AM
Post #6 of 7
(2287 views)
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Re: Ford Focus rough idle
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Okay, I have had someone read the codes and got the following: PO 136, PO 141, PO 171. All airflow related. I also found a nest in my engine comp. I removed that and took the air filter off and cleaned that out. There was some signs of nest material in the filter compartment as well. I will check my exhaust pipe as well. Could be something in there too. It is still running rough after cleaning air filter and re-setting codes.
Thanks, Sheri
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Hammer Time
Ultimate Carjunky
/ Moderator
Jul 28, 2014, 5:04 AM
Post #7 of 7
(2286 views)
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Re: Ford Focus rough idle
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You have a problem with the circuit for the downstream 0/2 sensor and a lean condition that has to be found.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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