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Ford Focus rough idle


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machinegirl1969
New User

Jul 22, 2014, 2:23 PM

Post #1 of 7 (1454 views)
Ford Focus rough idle Sign In

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


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Jul 22, 2014, 2:29 PM

Post #2 of 7 (1451 views)
Re: Ford Focus rough idle Sign In

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.



machinegirl1969
New User

Jul 22, 2014, 2:34 PM

Post #3 of 7 (1448 views)
Re: Ford Focus rough idle Sign In

No, I don't have a scanner, just eyeballs! Have never had any luck with being diagnosed by scanner. I usually take the car to the garage(Ford, private) but, like to have an idea before I go because I seem to have problems...$750 to change coil pack and that kind of thing.

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Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Jul 22, 2014, 2:36 PM

Post #4 of 7 (1445 views)
Re: Ford Focus rough idle Sign In

Autozone or Advance Auto Parts will read codes for free. Just get the code numbers and post them here.



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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.



machinegirl1969
New User

Jul 22, 2014, 2:39 PM

Post #5 of 7 (1441 views)
Re: Ford Focus rough idle Sign In

Thanks, I live 70 km from anywhere but, will try and find someone out here with a scanner. Thanks Sheri


machinegirl1969
New User

Jul 28, 2014, 4:14 AM

Post #6 of 7 (1374 views)
Re: Ford Focus rough idle Sign In

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


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Jul 28, 2014, 5:04 AM

Post #7 of 7 (1373 views)
Re: Ford Focus rough idle Sign In

You have a problem with the circuit for the downstream 0/2 sensor and a lean condition that has to be found.



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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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