SVTf Skips, revs oddly, slows down. - 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

Reply
 
LinkBack Thread Tools Display Modes
Old 08-22-2013, 11:10 AM   #1
Focus Jr. Enthusiast
 
maineway's Avatar
 
Join Date: Apr 2013
Fan#: 113885
Location: Augusta, ME
What I Drive: Silver 2005 Zx4 ST

Posts: 33
Points 294, Level 5
Points: 294, Level: 5 Points: 294, Level: 5 Points: 294, Level: 5
Level Up 88% Completed
Level up: 88% Level up: 88% Level up: 88%
Forum Activity 0%
Activity: 0% Activity: 0% Activity: 0%
FF Reputation: 1 maineway Good Standing Member
Buy-Sell-Trade Rating: (0)
SVTf Skips, revs oddly, slows down.

This issue has only happened after i drove the car and turned it off for a little while and drove it again. I accelerate and The car reaches around 3000rpm and just stays there revving and skipping and such. I shift into neutral and without pressing the brake the car slows down. if I accelerate again, same issue. If I turn the car off it fixes the issue. I know I have a bad VSS Sensor but dont know if that would be it. Changing the timing belt, serpentine, water pump, alternator, and now I think Crank shaft and Cam shaft sensors as well just to be safe. I'll also clean the throttle body and MAF sensor. INPUT please. TY in advance


maineway is offline  
    Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 08-22-2013, 02:01 PM   #2
Focus Enthusiast
 
rent's Avatar
 
Join Date: Sep 2004
Fan#: 12823
Location: Allen, TX
What I Drive: 03' SVTF

Posts: 120
Points 741, Level 14
Points: 741, Level: 14 Points: 741, Level: 14 Points: 741, Level: 14
Level Up 41% Completed
Level up: 41% Level up: 41% Level up: 41%
Forum Activity 0%
Activity: 0% Activity: 0% Activity: 0%
FF Reputation: 2 rent Good Standing Member
Buy-Sell-Trade Rating: (2)
Quote:
Originally Posted by maineway View Post
This issue has only happened after i drove the car and turned it off for a little while and drove it again. I accelerate and The car reaches around 3000rpm and just stays there revving and skipping and such. I shift into neutral and without pressing the brake the car slows down. if I accelerate again, same issue. If I turn the car off it fixes the issue. I know I have a bad VSS Sensor but dont know if that would be it. Changing the timing belt, serpentine, water pump, alternator, and now I think Crank shaft and Cam shaft sensors as well just to be safe. I'll also clean the throttle body and MAF sensor. INPUT please. TY in advance
Check your spark plugs. I managed to beat the crap out of mine after doing my T-Belt.
__________________
-James

'03 SVTF *FOR SALE*
'14 FoST Ingot Silver, bone stock...
rent is offline  
    Reply With Quote Quick reply to this message
Old 09-06-2013, 02:37 AM   #3
Focus Rookie
 
Join Date: Aug 2004
Fan#: 11509
Location: Phoenix, AZ
What I Drive: 2004 Pitch Black SVT Focus

Posts: 9
Points 13, Level 1
Points: 13, Level: 1 Points: 13, Level: 1 Points: 13, Level: 1
Level Up 25% Completed
Level up: 25% Level up: 25% Level up: 25%
Forum Activity 0%
Activity: 0% Activity: 0% Activity: 0%
FF Reputation: 1 Quick6 Good Standing Member
Buy-Sell-Trade Rating: (0)
Having the same issue man. Trying to track it down myself, but no luck so far.
Quick6 is offline  
    Reply With Quote Quick reply to this message
Old 09-06-2013, 04:14 AM   #4
FF's Night Security
 
sleepyboy's Avatar
 
Join Date: Nov 2004
Fan#: 15335
Location: SW Houston, TX, United States
What I Drive: 01' Yellow ZX3 euro, 04' ZX5 SVT

Posts: 28,678
Points 158,006, Level 100
Points: 158,006, Level: 100 Points: 158,006, Level: 100 Points: 158,006, Level: 100
Level Up 0% Completed
Level up: 0% Level up: 0% Level up: 0%
Forum Activity 8%
Activity: 8% Activity: 8% Activity: 8%
FF Reputation: 51 sleepyboy Excellent Standing Member
Buy-Sell-Trade Rating: (11)
Moved to the Technical Chat area
__________________
I started out with nothing and I still have most of it left

Hatch Nation #15 (Ole' Yeller') & #150 (The SVT)
Moderator for

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
sleepyboy is online now  
    Reply With Quote Quick reply to this message
Old 09-06-2013, 08:42 AM   #5
Focus Enthusiast
 
Insaniac's Avatar
 
Join Date: Apr 2006
Fan#: 34327
Location: Altoona, PA
What I Drive: 2003 ZX5 SVT

Posts: 182
Points 630, Level 12
Points: 630, Level: 12 Points: 630, Level: 12 Points: 630, Level: 12
Level Up 60% Completed
Level up: 60% Level up: 60% Level up: 60%
Forum Activity 0%
Activity: 0% Activity: 0% Activity: 0%
FF Reputation: 5 Insaniac Good Standing Member
Buy-Sell-Trade Rating: (3)
Sounds like it could be a throttle positioning sensor to me. Our cars are known to eat TPS's due to moisture getting in them.
__________________

2003 CD Silver SVT Focus ZX5
| Audiophile | Moonroof | Mach HID's | Sony MEX-BT4100P |
| Russell stainless brake lines | Aluminum shifter base bushings | Anarchy Motive 'Mammoth' shift knob |
Insaniac is offline  
    Reply With Quote Quick reply to this message
Old 09-07-2013, 12:39 PM   #6
Focus Rookie
 
Join Date: Aug 2004
Fan#: 11509
Location: Phoenix, AZ
What I Drive: 2004 Pitch Black SVT Focus

Posts: 9
Points 13, Level 1
Points: 13, Level: 1 Points: 13, Level: 1 Points: 13, Level: 1
Level Up 25% Completed
Level up: 25% Level up: 25% Level up: 25%
Forum Activity 0%
Activity: 0% Activity: 0% Activity: 0%
FF Reputation: 1 Quick6 Good Standing Member
Buy-Sell-Trade Rating: (0)
Seems the issue is the front O2 sensor is grounding out somewhere in the engine loom, causing the erratic behavior of the fuel trims. They don't have any harnesses available to buy. So I'll replace the pigtail and follow the harness up as far as it goes, checking for tight bends and spots that will rub or get too hot. Probably not a fun job.
Quick6 is offline  
    Reply With Quote Quick reply to this message
Old 09-07-2013, 02:20 PM   #7
Focus Jr. Enthusiast
 
maineway's Avatar
 
Join Date: Apr 2013
Fan#: 113885
Location: Augusta, ME
What I Drive: Silver 2005 Zx4 ST

Posts: 33
Points 294, Level 5
Points: 294, Level: 5 Points: 294, Level: 5 Points: 294, Level: 5
Level Up 88% Completed
Level up: 88% Level up: 88% Level up: 88%
Forum Activity 0%
Activity: 0% Activity: 0% Activity: 0%
FF Reputation: 1 maineway Good Standing Member
Buy-Sell-Trade Rating: (0)
so the radio wasn't stock and the vss needs to plug into that. swapped to the stock radio and it didn't fix the problem. changing the vss tomorrow
maineway 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 Pitch Black ZX3
Name
Your real name.
City
State
Country
Insurance
Please select your insurance company (Optional)

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



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 10:44 PM.


Copyright 2002-2015 FocusFanatics.com. All Rights Reserved : Privacy Policy : 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