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Nedron
Novice
May 29, 2015, 5:43 PM
Post #1 of 11
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Car Has Trouble Starting
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I own a Ford Focus 2003. I've been having an intermittent issue where the car would almost start for a moment and then die immediately. I'd have to wait a while until the car decides to start like it should. Any idea what this is and how to fix it? If any extra info is needed, just say so, please. Thanks for helping me!
(This post was edited by Nedron on Jun 14, 2015, 2:04 PM)
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Discretesignals
Ultimate Carjunky
/ Moderator
May 29, 2015, 6:09 PM
Post #2 of 11
(2380 views)
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Re: Car accelerates by itself
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Which engine? automatic or manual? Check engine light on? If so, which trouble code(s) number is stored?
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Nedron
Novice
May 29, 2015, 6:14 PM
Post #3 of 11
(2377 views)
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Re: Car accelerates by itself
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It's the 2.0 engine, automatic, and the check engine light is NOT on.
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Discretesignals
Ultimate Carjunky
/ Moderator
May 29, 2015, 6:36 PM
Post #4 of 11
(2373 views)
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Re: Car accelerates by itself
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Is this DOHC or SOHC?
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Nedron
Novice
Jun 1, 2015, 9:29 PM
Post #5 of 11
(2344 views)
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Re: Car accelerates by itself
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I replaced the throttle position sensor. Now I have a new problem: the motor now increases the RPM by itself without me pushing the gas pedal, especially when I'm driving at more than 40MPH.
Anyways, anything helps. Thanks!
EDIT: DOHC Engine
(This post was edited by Nedron on Jun 1, 2015, 9:34 PM)
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Discretesignals
Ultimate Carjunky
/ Moderator
Jun 2, 2015, 5:04 PM
Post #6 of 11
(2318 views)
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Re: Car accelerates by itself
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Does the engine have a high idle speed?
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
(This post was edited by Discretesignals on Jun 2, 2015, 5:04 PM)
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Nedron
Novice
Jun 14, 2015, 2:03 PM
Post #7 of 11
(2276 views)
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Re: Car accelerates by itself
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No, it doesn't. It has a low idle speed.
Since last time I put the old idle control valve back.. Now, I have the original problem again, where it wouldn't start for 30 or 40 minutes at a time.
It seems to happen more often when I do something intensive such as start it and turn it off a few times.
(This post was edited by Nedron on Jun 14, 2015, 2:05 PM)
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Discretesignals
Ultimate Carjunky
/ Moderator
Jun 14, 2015, 3:55 PM
Post #8 of 11
(2259 views)
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Re: Car accelerates by itself
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If you keep your foot on the accelerator, can you keep it running when it tries to die? Or if you hold the accelerator down 1/4 the way, will the engine start right up?
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
(This post was edited by Discretesignals on Jun 14, 2015, 3:55 PM)
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Nedron
Novice
Jun 19, 2015, 3:59 PM
Post #9 of 11
(2231 views)
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Re: Car accelerates by itself
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Yes, if I keep pressing the gas pedal as I attempt to start the car I can keep it somewhat alive. As soon as I release the gas, however, the car dies immediately.
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Discretesignals
Ultimate Carjunky
/ Moderator
Jun 19, 2015, 6:10 PM
Post #10 of 11
(2222 views)
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Re: Car accelerates by itself
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So you can keep the vehicle running if you keep your foot on the accelerator? Maybe the replacement IAC was defective. Have you installed another?
Did your replacement IAC look the same as the original? Did you replace the gasket also?
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
(This post was edited by Discretesignals on Jun 19, 2015, 6:12 PM)
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Nedron
Novice
Jun 23, 2015, 5:53 PM
Post #11 of 11
(2192 views)
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Re: Car accelerates by itself
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No, I had returned the original idle control, I ended up cleaning it as well. It doesn't happen all that often, but it does happen every so often (with the original idle control valve), seems to particularly happen when the engine is being used intensively (ie being turned on and off).
When I replaced it with the new idle control valve I did indeed replace the gasket, and that replacement gasket is still there.
Could it be an air leak? Sometimes I can hear a very faint whistle when I go at about 40 (disappears after I go faster) that decreases in pitch.
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