'08 Focus SE "jerks" at a steady speed - 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 Tech Discussions > General Technical Chat

General Technical Chat This section is for technical discussions relating to general maintenance, electrical issues, engine trouble, and recalls.


Search This Forum | Image Search | Advanced Search    
FocusFest

Like Tree2Likes
Reply




 
LinkBack Thread Tools Display Modes
Old 06-08-2019, 03:19 PM   #1
Focus Rookie
 
Join Date: Jun 2019
Fan#: 413321
What I Drive: 2008 Ford Focus SE

Posts: 7
Points 30, Level 1
Points: 30, Level: 1 Points: 30, Level: 1 Points: 30, Level: 1
Level Up 60% Completed
Level up: 60% Level up: 60% Level up: 60%
Forum Activity 12%
Activity: 12% Activity: 12% Activity: 12%
FF Reputation: 1 dp155 Good Standing Member
Buy-Sell-Trade Rating: (0)
'08 Focus SE "jerks" at a steady speed

If I have my foot barely on the gas pedal at a steady speed (usually 50-55mph), I feel an occasional "jerk". But when I take my foot off the gas, the jerking goes away. When the jerking occurs, the RPMs do not fluctuate. Also, the car idles really well. I take really good care of it since it has 124k miles and its 11 years old. No dash lights are on and the only code I get from the OBD II scanner is a P0581 Cruise Control Multi-Function Input A Circuit High.

Anyone know where this problem could be originating from? Thanks.


dp155 is offline  
    Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 06-08-2019, 03:21 PM   #2
Focus Enthusiast
 
Gingershrek's Avatar
 
Join Date: May 2019
Fan#: 412805
Location: Ridgecrest, CA
What I Drive: 2001 ZX3

Posts: 52
Points 105, Level 2
Points: 105, Level: 2 Points: 105, Level: 2 Points: 105, Level: 2
Level Up 10% Completed
Level up: 10% Level up: 10% Level up: 10%
Forum Activity 61%
Activity: 61% Activity: 61% Activity: 61%
FF Reputation: 1 Gingershrek Good Standing Member
Buy-Sell-Trade Rating: (0)
Iím guessing here, but, maybe, just maybe, disconnect the cruise control, then take it for a spin and see if it still does it. Kinda sounds like the cruise is acting twitchy, maybe trying to engage on its own while youíre driving?


Sent from my iPhone using FF Mobile
Gingershrek is offline  
    Reply With Quote Quick reply to this message
Old 06-08-2019, 04:17 PM   #3
Focus Enthusiast
 
Join Date: Nov 2011
Fan#: 91663
Location: Houston, TX
What I Drive: 2006 ZX3 SES

Posts: 439
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)
Have you replaced the spark plugs?
pbfoot is offline  
    Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 06-08-2019, 05:53 PM   #4
Focus Rookie
 
Join Date: Jun 2019
Fan#: 413321
What I Drive: 2008 Ford Focus SE

Posts: 7
Points 30, Level 1
Points: 30, Level: 1 Points: 30, Level: 1 Points: 30, Level: 1
Level Up 60% Completed
Level up: 60% Level up: 60% Level up: 60%
Forum Activity 12%
Activity: 12% Activity: 12% Activity: 12%
FF Reputation: 1 dp155 Good Standing Member
Buy-Sell-Trade Rating: (0)
Yeah, I replaced the plugs about 10k miles ago.
dp155 is offline  
    Reply With Quote Quick reply to this message
Old 06-08-2019, 06:30 PM   #5
Focus Enthusiast
 
Join Date: Nov 2011
Fan#: 91663
Location: Houston, TX
What I Drive: 2006 ZX3 SES

Posts: 439
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)
How about full throttle. Ac on or off.
pbfoot is offline  
    Reply With Quote Quick reply to this message
Old 06-08-2019, 06:49 PM   #6
Focus Enthusiast
 
Join Date: Nov 2011
Fan#: 91663
Location: Houston, TX
What I Drive: 2006 ZX3 SES

Posts: 439
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)
If the car is an automatic can you move the shifter out of park without stepping on the brake pedal?
pbfoot is offline  
    Reply With Quote Quick reply to this message
Old 06-08-2019, 06:50 PM   #7
Focus Enthusiast
 
Join Date: Nov 2011
Fan#: 91663
Location: Houston, TX
What I Drive: 2006 ZX3 SES

Posts: 439
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)
When you replaced the plugs was there any oil on the top part of the plug or the coil pack boots?
pbfoot is offline  
    Reply With Quote Quick reply to this message
Old 06-08-2019, 07:35 PM   #8
Focus Rookie
 
Join Date: Jun 2019
Fan#: 413321
What I Drive: 2008 Ford Focus SE

Posts: 7
Points 30, Level 1
Points: 30, Level: 1 Points: 30, Level: 1 Points: 30, Level: 1
Level Up 60% Completed
Level up: 60% Level up: 60% Level up: 60%
Forum Activity 12%
Activity: 12% Activity: 12% Activity: 12%
FF Reputation: 1 dp155 Good Standing Member
Buy-Sell-Trade Rating: (0)
It does it when the A/C is on and off.
dp155 is offline  
    Reply With Quote Quick reply to this message
Old 06-08-2019, 07:44 PM   #9
Focus Rookie
 
Join Date: Jun 2019
Fan#: 413321
What I Drive: 2008 Ford Focus SE

Posts: 7
Points 30, Level 1
Points: 30, Level: 1 Points: 30, Level: 1 Points: 30, Level: 1
Level Up 60% Completed
Level up: 60% Level up: 60% Level up: 60%
Forum Activity 12%
Activity: 12% Activity: 12% Activity: 12%
FF Reputation: 1 dp155 Good Standing Member
Buy-Sell-Trade Rating: (0)
If I want to move the shifter out of park, I have to put my foot on the brake and when I replaced the plugs, I had to replace the valve cover gasket because there was some oil in on the plugs.
dp155 is offline  
    Reply With Quote Quick reply to this message
Old 06-08-2019, 07:46 PM   #10
Focus Enthusiast
 
Gingershrek's Avatar
 
Join Date: May 2019
Fan#: 412805
Location: Ridgecrest, CA
What I Drive: 2001 ZX3

Posts: 52
Points 105, Level 2
Points: 105, Level: 2 Points: 105, Level: 2 Points: 105, Level: 2
Level Up 10% Completed
Level up: 10% Level up: 10% Level up: 10%
Forum Activity 61%
Activity: 61% Activity: 61% Activity: 61%
FF Reputation: 1 Gingershrek Good Standing Member
Buy-Sell-Trade Rating: (0)
How about try the cruise control? Does it do it cruise on and off? Or just cruise off?


Sent from my iPhone using FF Mobile
Gingershrek 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



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 12:02 AM.


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