Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum - Reply to Topic
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 > Weird problem

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    
Ford Focus Tire & Wheels FocusFanatics Merchandise

Thread: Weird problem Reply to Thread
Title:
  
Message:
Post Icons
You may choose an icon for your message from the following list:
 

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:

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.



Additional Options
Miscellaneous Options

Topic Review (Newest First)
04-30-2013 10:22 PM
jalissa01 I am having about the same problem. When I turn on my car it has a lot of issues switching into gear; it dies sometimes multiple times. It is normally easy to start back up but occasionally it acts like the battery is dead and does not try to turn on. Also, my rpms seem to be all over the place. Here is a video of what it does, it dies at the end. http://www.youtube.com/watch?v=ez4mmQA539w also, it is making a lot of noise which is here: http://www.youtube.com/watch?v=3b0VsTt3-S0 Any Ideas?
04-14-2013 12:51 PM
FoMoCus I've never owned a Ford that didn't at some point have an Idle Air Control valve fail. Actually I take that back, my mustang never did. But it failed twice on my ranger and twice on my f-150.
04-14-2013 04:55 AM
amc49 Have a look at the TB inside, if it has any buildup around the throttle blade idle setting. Clean it with like acetone on a clean towel, you can get pretty much most of it without removing the TB, that could help and cost nothing. May even help engine starting. Dirty IAC too or 'idle air control' valve.........but they suck getting to on these.

If car doesn't do it in normal driving around town, I'd tune it out of my head.
04-14-2013 12:30 AM
drummer829
Quote:
Originally Posted by firststrike51 View Post
sounds like a faulty iac valve

iac?
04-12-2013 06:23 AM
firststrike51 Sounds like a faulty IAC valve
04-12-2013 12:09 AM
drummer829
Quote:
Originally Posted by sailor View Post
Could be one thing, or a combination of many - Not a "normal" driving pattern as mentioned - and not uncommon in the particular circumstances.

As amc mentioned, the engine is slowing fast and tends to keep doing so in this circumstance. It's got ONE chance to "catch" before continuing to a stop, and the slightest "misfire" for example would be enough that it dies at that point.

Plugs/boots not quite perfect, an injector a bit dirty, IAC a little slow to respond, you could chase the issue quite expensively without solving it if all possiible suggestions were followed. That's probably a major reason for a lack of suggestions to "solve" the problem.

Drive it as is, see if it does anything similar at other times, consider "tune up" type maint. if not done recently (plugs, fuel filter) and see how it goes for now.

Luck!
I was going to swap out the plugs and filter soon. It has been running fine since then, so hopefully maybe my cars warning me to get a tuneup
04-11-2013 02:56 PM
sailor Could be one thing, or a combination of many - Not a "normal" driving pattern as mentioned - and not uncommon in the particular circumstances.

As amc mentioned, the engine is slowing fast and tends to keep doing so in this circumstance. It's got ONE chance to "catch" before continuing to a stop, and the slightest "misfire" for example would be enough that it dies at that point.

Plugs/boots not quite perfect, an injector a bit dirty, IAC a little slow to respond, you could chase the issue quite expensively without solving it if all possiible suggestions were followed. That's probably a major reason for a lack of suggestions to "solve" the problem.

Drive it as is, see if it does anything similar at other times, consider "tune up" type maint. if not done recently (plugs, fuel filter) and see how it goes for now.

Luck!
04-11-2013 12:30 PM
drummer829
Quote:
Originally Posted by amc49 View Post
What a question. If you continue to zing the motor to 6k and let off, then expect the same result. Those things don't fix themselves.

My suggestion? Get one of these...........

'They simply made up a device that slowed the engine speed from dropping so fast'

It's called your right foot.................I've been doing it for 40+ years when the need shows. Basic physics, young jedi.
I don't normally do that though, but once in a while its fun to get the car going so I was confused why it happened
04-10-2013 07:38 PM
amc49 What a question. If you continue to zing the motor to 6k and let off, then expect the same result. Those things don't fix themselves.

My suggestion? Get one of these...........

'They simply made up a device that slowed the engine speed from dropping so fast'

It's called your right foot.................I've been doing it for 40+ years when the need shows. Basic physics, young jedi.
04-10-2013 01:24 PM
drummer829
Quote:
Originally Posted by amc49 View Post
If it's running up to 6K then not fuel. He says it dies after letting off or going to neutral. Could be IAC or TB aircrack carboned up, which are supposed to take up idle throttle when letting off, or could be nothing. I used to hotrod both bikes and cars, sometimes dying after a hard pass was the norm, nothing wrong there at all other than whatever is supposed to maintain idle speed is not working as well as it should. The main reason for damping dashpots on oldschool carbs in the later '70s and '80s was this very thing. They simply made up a device that slowed the engine speed from dropping so fast, a 6000 to 700 rpm drop has a tendency to keep dropping, inertia, you know.
So would you suggest just driving it for a few days and see if it continues?
This thread has more than 10 replies. Click here to review the whole thread.

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


All times are GMT -5. The time now is 03:51 AM.


Copyright 2002-2014 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 Audi S3, Ford Fusion and Acura TLX. You can find all Ford Focus and Focus ST related information here. Join our Ford Focus discussion forums and chat with local Focus enthusiasts in your area. Challenger Hellcat - Charger Hellcat