2010 SES new idle issue - Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum
Ford Focus Forum
HomeContact UsAbout UsGalleryDiscussion ForumsMarketplace


Go Back   Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum > Ford Focus Second Generation > MK2 Focus

MK2 Focus The place to chat about general questions, window tinting, exterior body, interior and lighting upgrades for the second generation 2008-2011 Focus.

Search This Forum | Image Search | Advanced Search    
FocusFest

Like Tree1Likes
Reply




 
LinkBack Thread Tools Display Modes
Old 07-31-2019, 09:15 PM   #1
Focus Rookie
 
Join Date: Jul 2019
Fan#: 414659
Posts: 5
Points 19, Level 1
Points: 19, Level: 1 Points: 19, Level: 1 Points: 19, Level: 1
Level Up 37% Completed
Level up: 37% Level up: 37% Level up: 37%
Forum Activity 13%
Activity: 13% Activity: 13% Activity: 13%
FF Reputation: 1 ronheater70 Good Standing Member
Buy-Sell-Trade Rating: (0)
2010 SES new idle issue

I am having an issue that I feel mimics the IAC valve needing cleaning or replaced. However I don't think the 2010 has it if I am correct? Sporadic idling suddenly, mostly with air on. Will idle down , then up and then hold for a bit, then down again.. Stalls a time or two. With throttle it runs perfectly. So Im naturally thinking IAC, but I don't have that so maybe I need the throttle body cleaned. I should mention I bought the car with 120K on it 2 weeks ago. It had been sitting for a year so I put in fresh gas, new rotors, pads and calipers, new battery, new oil change, recharged ac, etc.. and it had been running perfectly until this happened today. We bought it for my Mother N law. Any suggestions greatly appreciated!


ronheater70 is offline  
    Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 08-01-2019, 06:38 AM   #2
Focus Addict
 
Join Date: Nov 2011
Fan#: 91663
Location: Houston, TX
What I Drive: 2006 ZX3 SES

Posts: 704
Points 918, Level 16
Points: 918, Level: 16 Points: 918, Level: 16 Points: 918, Level: 16
Level Up 18% Completed
Level up: 18% Level up: 18% Level up: 18%
Forum Activity 99%
Activity: 99% Activity: 99% Activity: 99%
FF Reputation: 6 pbfoot Good Standing Member
Buy-Sell-Trade Rating: (0)
Clean throttle body. Change spark plugs.
zacautomotive likes this.
pbfoot is offline  
    Reply With Quote Quick reply to this message
Old 08-01-2019, 09:29 AM   #3
Focus Rookie
 
Join Date: Jul 2019
Fan#: 414659
Posts: 5
Points 19, Level 1
Points: 19, Level: 1 Points: 19, Level: 1 Points: 19, Level: 1
Level Up 37% Completed
Level up: 37% Level up: 37% Level up: 37%
Forum Activity 13%
Activity: 13% Activity: 13% Activity: 13%
FF Reputation: 1 ronheater70 Good Standing Member
Buy-Sell-Trade Rating: (0)
Thanks pbfoot, thats what Im thinking will be the first steps. And simple enough to do, Thank you! My inlaws car is a 96 toyota with 260K on it and just everything not working, no air, only 2 windows roll down, eats oil, etc.. So we got this for her and it has been perfect in all ways since We got it back on the road and we drove it for150 miles or so with it running perfectly and she came to pick it u p last night and the whole idle thing started.. My luck..L

Last edited by ronheater70; 08-01-2019 at 09:31 AM.
ronheater70 is offline  
    Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 08-01-2019, 03:35 PM   #4
Focus Addict
 
Join Date: Nov 2011
Fan#: 91663
Location: Houston, TX
What I Drive: 2006 ZX3 SES

Posts: 704
Points 918, Level 16
Points: 918, Level: 16 Points: 918, Level: 16 Points: 918, Level: 16
Level Up 18% Completed
Level up: 18% Level up: 18% Level up: 18%
Forum Activity 99%
Activity: 99% Activity: 99% Activity: 99%
FF Reputation: 6 pbfoot Good Standing Member
Buy-Sell-Trade Rating: (0)
Quote:
Originally Posted by ronheater70 View Post
Thanks pbfoot, thats what Im thinking will be the first steps. And simple enough to do, Thank you! My inlaws car is a 96 toyota with 260K on it and just everything not working, no air, only 2 windows roll down, eats oil, etc.. So we got this for her and it has been perfect in all ways since We got it back on the road and we drove it for150 miles or so with it running perfectly and she came to pick it u p last night and the whole idle thing started.. My luck..L
Old cars need work occasionally. Still better than car payments. Check out the fuel filter as well.
pbfoot is offline  
    Reply With Quote Quick reply to this message
Old 08-01-2019, 03:49 PM   #5
Focus Addict
 
zacautomotive's Avatar
 
Join Date: Jun 2018
Fan#: 402829
Location: Pleasant Garden, NC
What I Drive: 2010 Ford Focus,2017 Ford Fiesta ST

Posts: 625
Points 729, Level 14
Points: 729, Level: 14 Points: 729, Level: 14 Points: 729, Level: 14
Level Up 29% Completed
Level up: 29% Level up: 29% Level up: 29%
Forum Activity 100%
Activity: 100% Activity: 100% Activity: 100%
FF Reputation: 2 zacautomotive Good Standing Member
Buy-Sell-Trade Rating: (0)
No fuel filter to change it's in the tank.

Sent from my LG-LS997 using FF Mobile
zacautomotive is online now  
    Reply With Quote Quick reply to this message
Old 08-01-2019, 08:22 PM   #6
Focus Addict
 
Join Date: Nov 2011
Fan#: 91663
Location: Houston, TX
What I Drive: 2006 ZX3 SES

Posts: 704
Points 918, Level 16
Points: 918, Level: 16 Points: 918, Level: 16 Points: 918, Level: 16
Level Up 18% Completed
Level up: 18% Level up: 18% Level up: 18%
Forum Activity 99%
Activity: 99% Activity: 99% Activity: 99%
FF Reputation: 6 pbfoot Good Standing Member
Buy-Sell-Trade Rating: (0)
Quote:
Originally Posted by zacautomotive View Post
No fuel filter to change it's in the tank.

Sent from my LG-LS997 using FF Mobile
Thank you for clarifying.
pbfoot is offline  
    Reply With Quote Quick reply to this message
Old 08-05-2019, 08:16 PM   #7
Focus Rookie
 
Join Date: Apr 2012
Fan#: 98267
Location: Brooklyn, NY
What I Drive: 2010 Silver Sedan SE

Posts: 4
Points 7, Level 1
Points: 7, Level: 1 Points: 7, Level: 1 Points: 7, Level: 1
Level Up 13% Completed
Level up: 13% Level up: 13% Level up: 13%
Forum Activity 11%
Activity: 11% Activity: 11% Activity: 11%
FF Reputation: 1 andycruz77 Good Standing Member
Buy-Sell-Trade Rating: (0)
I actually started to experience that. Initially thinking it was about time with 140k miles that it was time for a tune up. It got better but idle was as described and ended up buying the throttle body with all the sensors. It was simple and worth every penny. Car runs like new. Found out that this is a common issue with the car.

I followed this video "Ford Focus & Transit Connect P1235 Electronic Throttle Body Replace" by FordTechMakuloco and his PCM relearn procedure and now I don't have the issue and idles like new.
andycruz77 is offline  
    Reply With Quote Quick reply to this message
Old 08-05-2019, 10:52 PM   #8
Focus Addict
 
autolite's Avatar
 
Join Date: Apr 2007
Fan#: 46002
Location: hinckley ohio, United States
What I Drive: 2008 SE GRAY

Posts: 658
Points 543, Level 10
Points: 543, Level: 10 Points: 543, Level: 10 Points: 543, Level: 10
Level Up 86% Completed
Level up: 86% Level up: 86% Level up: 86%
Forum Activity 8%
Activity: 8% Activity: 8% Activity: 8%
FF Reputation: 4 autolite Good Standing Member
Buy-Sell-Trade Rating: (0)
mine 2008 146,000 miles started doing it aswell. I cleaned the throttle body and the mass air flow senser they sell a cleaner for it. Its better but still hunts for the idle. No iac on these years
autolite is offline  
    Reply With Quote Quick reply to this message
Old 08-06-2019, 10:25 AM   #9
Focus Rookie
 
Join Date: Jul 2019
Fan#: 414659
Posts: 5
Points 19, Level 1
Points: 19, Level: 1 Points: 19, Level: 1 Points: 19, Level: 1
Level Up 37% Completed
Level up: 37% Level up: 37% Level up: 37%
Forum Activity 13%
Activity: 13% Activity: 13% Activity: 13%
FF Reputation: 1 ronheater70 Good Standing Member
Buy-Sell-Trade Rating: (0)
I just wanted to follow up on this, as one of my biggest pet peeves as a member of several truck and bike forums is someone requesting help to solve a problem and never following up.
So I took advice above and cleaned the throttle body, It had sorta seemed to self correct a bit. Cleaning the TB helped it further. It now idles normally. I just wanted to state it only did it when the AC kicked on. Now witht he AC on, it remains pretty constant. Thanks for the helps guys,
ronheater70 is offline  
    Reply With Quote Quick reply to this message
Old 08-06-2019, 12:29 PM   #10
Focus Addict
 
autolite's Avatar
 
Join Date: Apr 2007
Fan#: 46002
Location: hinckley ohio, United States
What I Drive: 2008 SE GRAY

Posts: 658
Points 543, Level 10
Points: 543, Level: 10 Points: 543, Level: 10 Points: 543, Level: 10
Level Up 86% Completed
Level up: 86% Level up: 86% Level up: 86%
Forum Activity 8%
Activity: 8% Activity: 8% Activity: 8%
FF Reputation: 4 autolite Good Standing Member
Buy-Sell-Trade Rating: (0)
Feel the same it helps others to post results to let them know there on the right track. my next move will be replace t.b. like posted above. If it gets worse.
autolite is offline  
    Reply With Quote Quick reply to this message
Reply

Bookmarks & Social Networks

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:
What I Drive
Year, color, and model of your car. Example: 2003 Focus Centennial Edition Sedan
Name
Your real name.
City
State
Country
Insurance
Please select your insurance company (Optional)

Log-in


Thread Tools
Display Modes

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -5. The time now is 06:25 PM.


Copyright 2002-2015 FocusFanatics.com. All Rights Reserved : : Advertise Information

Focus Fanatics Ford Focus Forum offers many fun ways for you to engage with other Ford Focus Owners from across the world. Whether it be about the aftermarket performance modifications, technical how-to's, European tuned suspension or awesome fuel economy similar to the Mazda CX-3, Audi S3, Mazda MX-5 Miata and Acura TLX. You can find all Ford Focus, Focus ST and Focus RS related information here. Join our Ford Focus discussion forums and chat with local Focus enthusiasts in your area. If you own other makes have a look at Challenger Hellcat Forum, Charger Hellcat Forum, Cadillac ATS-V Forum, Cadillac CTS-V Forum, Lexus RC-F Forum, Lexus GS-F Forum, Mercedes GLA Forum, Mercedes GLE Forum and Volvo XC90 Forum.




 

Search Engine Optimization by vBSEO 3.6.1