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Discussion Starter #1
Hello fellow Accent owners/fans. I was hoping someone here might be familiar with a problem I've been having with my 2011 hatchback. The issue is as follows:

My car randomly stalls when I approach a stop or even while parked and idling. It happens on hot days and even during relatively mild temperatures. Most of the time, it will restart immediately. Sometimes, it takes awhile to restart. There are days when it doesn't happen at all and days when it happens more than once. It doesn't bring up any codes when I take it to a mechanic. I have had some suggestions from friends but before I start replacing random parts, I would love to hear any and all advice from those out there that might have a better grasp of what's going on with my car.

I appreciate taking the time to read this and for any responses.
 

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What happens when it happens? Like turning the key off? Dash lights On/off.....etc..
 

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Discussion Starter #3
The engine completely shuts off but the electronics still work. When I try to start it up again, it will usually crank longer than normal to restart. Sometimes it won't restart. Twice, it restarted but the check engine light came on. But upon the next restart, the check engine light went away.
 

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More than likely a dirty IAC valve. This happened on my Accent a couple years ago. First thing I noticed is I lost fast rpm on a cold engine start. Eventually it would stall from low rpm and set a code.

But it is easy to fix. A couple bolts hold it on and it comes off and you can clean it out with some brake or carb cleaner.

It's a barrel like cyclinder than has a varied with slot. As it rotates it can adjust the air flow past the throttle plate for idle control. This gets carbon on it and makes it sticky. Just spray it out good. It only goes back in one way so it's hard to mess up.
 

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The TB you can just hold open with your hand or jam something at the throttle lever then spray away. Hit the throttle plate shafts the hardest and move the throttle open and close.

If you take the TB off, which is not that hard, be sure to have a new gasket before hand.

The IAC needs to come off. it's only a couple bolts and it's a barrel type that hangs up. Spraying and exercising it by hand will fix the issue. Only goes back together one way.

Disconnect he battery to reset the idle learned values.
 

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Discussion Starter #8
Problem solved. I took my car to a mechanic that inspected the issue and found the culprit: my crank position sensor was damaged. $100 later and my car is back in business!
 
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