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  #1  
Old 08-01-2013, 08:47 AM
 
Join Date: Aug 2013
Posts: 9
Default 2003 Accord stalls at idle.

Hey all,

I have an 03 with 4 cyl engine and auto trans.
When I start the car cold, it idles high to about 1200 RPM for a few moments then when it starts to warm up the idle drops... too far.
It drops to about 600 rpm. It will sit at that idle all day long as long as I don't put it in gear.

If I start to drive it will drive fine, but when I come to a stop the idle drops low again and will now stall.

It restarts without any issue and as long as I keep my foot on the gas to keep the RPM's up around 800 its just fine.

Where should I start?

It has 221,000 miles and its been using oil for the last 30,000 or so


Thanks in advance

Dave
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  #2  
Old 08-01-2013, 08:49 AM
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any codes or warning lights on? i would start looking at the IAC valve and throttle body for excessive deposits and/or being gummed up. also change you PCV valve, i'm betting that has never been done.
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  #3  
Old 08-01-2013, 09:01 AM
 
Join Date: Aug 2013
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I had a Rear O2 sensor light on for about 120,000 now, but thats it.
nothing new otherwise
IAC = ??

(edit) just found Idle Air Control)
(/edit)
I have never done more than brakes and oil/tranny fluid changes.
I'll look into how to change the PCV
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Old 08-01-2013, 09:28 AM
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Quote:
Originally Posted by davedejonge View Post
I'll look into how to change the PCV
In the video that hose referred to, is part of PCV system. However, the actual PCV valve is located next to the alternator.

This other thread shows how to change the PCV valve on an 8th generation 4 cylinder Accord; however, the same procedure is applicable to your 7th generation 4 cylinder, as they are both K24 engines.

2008-2010 Honda Accord PCV Valve Guide (2.4L I4)
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Old 08-01-2013, 09:37 AM
 
Join Date: Aug 2013
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Quote:
Originally Posted by redbull-1 View Post
In the video that hose referred to, is part of PCV system. However, the actual PCV valve is located next to the alternator.

This other thread shows how to change the PCV valve on an 8th generation 4 cylinder Accord; however, the same procedure is applicable to your 7th generation 4 cylinder, as they are both K24 engines.

2008-2010 Honda Accord PCV Valve Guide (2.4L I4)


Awesome, looks straight forward, I'll give that a shot first as it looks simplest.
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Old 08-01-2013, 10:02 AM
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IAC valve and throttle body may be where the problem is at. However, in terms of maintenance, when was the last time the air filter, spark plugs, etc. changed?
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  #7  
Old 08-01-2013, 10:46 AM
 
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I just checked the Air Filter, its dirty, but not terrible, I was thinking of doing the plugs as at the same time as the PCV valve,
I should do the plugs first and then check to see if that maked a difference...

perhaps with the oil usage one of the plugs is fouled enough to give me headaches too.
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Old 08-01-2013, 11:49 AM
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sparkplugs every 100k miles or so.
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  #9  
Old 08-01-2013, 12:57 PM
 
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Yeah, my plugs are probably 85,000 old I did them a little late ( around 140,000 or so )


I'll be able to get out to the store tonight. I'll try and post up the results of just the plug change.

Thanks for all your help so far everyone, I know this can be solved.
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Old 08-01-2013, 04:03 PM
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My car had idle issues which I literally just resolved today which was a dirty IAC valve. Air, spark or fuel. I'd check spark plugs, pvc, the easy things and go from there
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Old 08-01-2013, 04:03 PM
 
 
 
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1999, 2003, 2008, 24l, accord, air, car, control, dies, honda, idle, idling, stall, stalling, stalls, valve


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