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Old 12-09-2013, 09:08 PM   #1
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New 2014 Unlimited Rough Idle and engine light blinking

Howdy all!

I just got a brand new Wrangler unlimited on thanksgiving (I have been driving it a lot so it has about 600 miles ) I started it up today and it started up fine, when I was at the first traffic light it started vibrating and the check engine light flashed on and off. The vibration goes away when I accelerated out of the stoplight. I think it is a temperature issue. The outside temp is 39ºF and the transmission temp when this happened was 63ºF and I believe the oil temp was 120º.

Could this be caused by the cold temps? I didn't wait at all for it to warm up. I just fired it up and went.


TIA

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Old 12-09-2013, 09:23 PM   #2
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I also have 2014 unlimited rubicon with similar temps and have had no issues like that.

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Old 12-09-2013, 11:05 PM   #3
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update: Now the check engine light stays on.
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Old 12-10-2013, 12:11 AM   #4
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A blinking CEL usually indicates a misfire. I'm sure you're already planning on bringing it in to the dealership since it's brand new.
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Old 12-10-2013, 12:13 AM   #5
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run a system scan with a scan tool, and bring it into dealer ASAP

Keep us posted
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Old 12-10-2013, 12:27 AM   #6
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i had this happen once before, similar scenario and temperatures. My brothers 2012 also did the same thing. He found that when you start the engine for the first time after its sat long enough to be cold (winter time) he says dont move the Jeep until the tach drops under 1k (about a minute or two) then it wont do what we've experienced.

I called BS so i tried starting it and moving it immediately after i started it and sure enough it did it. He hasnt had it happen in 2 1/2 years so there is some method to his madness i have yet for it to happen again since ive started doing this!

would love to know why though ?
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Old 12-10-2013, 01:12 AM   #7
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My guess is the huge belt on this engine gets cold and loosens up a bit on the pulleys. Whe first started, it takes a minute or so for the belt to run smooth and everything in the engine as well. I know I got a belt 'flicker' in the cold, and my girl's car gets it bad.. we have to go a tighten her belt up every winter or it squeals. I had a dash light flicker I noticed today, tapped the gas pedal just enough to bump to 1k and it settled down and quit even after I let it go back to idle for 2 minutes.

I wouldn't let the problem go, it would be best to have it checked on, adjusting the belt won't take a dealer long if that's what it is.
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Old 12-10-2013, 02:12 AM   #8
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The problem with a blinking check engine light is that means it needs immediate attention, it may go into limp mode too. A solid check engine light is less severe.
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Ice storm casualty in 2007 - 2003 TJ, green, auto, 3.73, 33" Duratracs, 4" lift
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Old 12-10-2013, 04:08 AM   #9
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Yeah it was blinking then it turned to solid. My roommate seems to think it is a oil/transmission fluid problem so I'm going to check those fluid levels tomorrow. If those check out I will schedule an appointment with the dealership. I'll probably swing by an auto parts store and see what the trouble code it's giving is as well. Just so I know. Thanks for the insights everyone! I will keep this thread updated.
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Old 12-10-2013, 11:13 AM   #10
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I took it to advance auto parts and they told me their code reader was not interfacing with it. I will take it to the dealer after finals tomorrow.
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Old 12-10-2013, 12:25 PM   #11
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It's a misfire condition. Take it to the dealer since its brand new. End of story.
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Old 12-12-2013, 12:34 PM   #12
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I picked up my 2014 rubicon unlimited on 12/2 and yesterday (12/11) was the first time I drove it since then (I have another vehicle I drive to work). Stopped to do some shopping on my way home yesterday. Left the store and was sitting behind a vehicle at a stop sign in the lot. I was in first gear with the clutch pedal down. The jeep started shaking real bad and felt like it was going to stall. Shifted into neutral and the same thing. Revved it up and then the same thing happened. Drove to the next store and shopped for about 20 minutes. Came out and started the Jeep and the check engine light was on. This was at 85 miles on the odometer, so that has to be some sort of record. Went straight to the dealership. Still haven't heard from them today. Needless to say, I'm not very happy.
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Old 12-12-2013, 12:54 PM   #13
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Blinking check engine light means that you are in danger of frying your catalytic converters. That something detrimental in your motor is happing. DO NOT put this off!!! Dealer immediately.
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Old 12-12-2013, 06:02 PM   #14
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Dealership told me this was a known jeep issue that they were notified about. The gas that comes from the factory was bad.

error codes pointed to misfiring
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Old 12-12-2013, 06:22 PM   #15
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CJD is near the bottom of JD Powers reliability but I've never really cared about that one report since that's what warranties are for and both durangos I've owned have turned out to be the most reliable vehicles I've ever owned.

Well the statistics caught up with me.

I drove our new '14 JKU Sahara home and it was fine. Next day, engine throttle control light came on and others, engine stumbling and went into limp mode. I couldn't believe a brand new car was getting towed to the dealer. They isolated it to the pcm and I had it back the next day with a new pcm. No problems since.
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Old 12-12-2013, 11:41 PM   #16
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The day I was going to take it to the dealer the check engine light turned back off. Have driven a couple hundred miles since then and no problems. The guy at the dealership seems to think it might have been bad gas or something.
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Old 12-17-2013, 05:01 AM   #17
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Around here Advanced Auto is like having a 2 year tell you what's wrong. Avoid...

Bad gas may be possible, the factory only puts a few gallons in though, did everybody get a full tank when they left the dealer? Has anyone put in a fuel treatment like Lukas?

I haven't heard anything here, but I also haven't looked for it. Anybody get a code number - does it show up on the dash when you do the key check?
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Ice storm casualty in 2007 - 2003 TJ, green, auto, 3.73, 33" Duratracs, 4" lift
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Old 12-17-2013, 04:18 PM   #18
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My '13 with 8300 miles did that last week after a cold soak at work. The misfire cleared after a minute or so. I have a scanner and got "pending" codes for multiple misfire and exhaust cam position sensor slow respond. It hasn't repeated this week.
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Old 12-17-2013, 10:37 PM   #19
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I know the dealer filled it up for me before giving it to me. But this happened after my first tank of gas so I don't think that was it. It could've been the gas I got from Sam's Club but I don't know. It hasn't happened to me since and I couldn't get the code to show up on the dash… I'm not sure if I'm doing it wrong or what.
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Old 11-19-2014, 10:58 AM   #20
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This just happened!

Quote:
Originally Posted by 3PedalMINI View Post
i had this happen once before, similar scenario and temperatures. My brothers 2012 also did the same thing. He found that when you start the engine for the first time after its sat long enough to be cold (winter time) he says dont move the Jeep until the tach drops under 1k (about a minute or two) then it wont do what we've experienced.

I called BS so i tried starting it and moving it immediately after i started it and sure enough it did it. He hasnt had it happen in 2 1/2 years so there is some method to his madness i have yet for it to happen again since ive started doing this!

would love to know why though ?
Ditto!
I just experienced the terrible shuttering/sputtering/no power/blinking check engine light phenom.

Just at 5,000 miles and no issues on my 2014 JK, until this chilly morning.
Yesterday, after sitting for 2 days, it was started briefly and moved a few feet, then parked again right away. This morning it ran like crap...as though it couldn't clear it's throat- lol

Luckily I work at a dealership that isn't far away. It threw some goofy codes that indicated that the oil was dirty or the wrong viscosity (it was changed less than a week ago), fresh oil & filter have been replaced and the light is staying off now.

This is very strange, but I wonder if 3PedalMINI's post above about not warming up before moving is valid? Damnedest thing I've ever seen with any of the Wranglers I've owned...
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Old 11-19-2014, 06:46 PM   #21
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Misfire like this is generally one of three things. Coil pack, fuel injector, electronics (PCM/cam position sensor/crank position sensor). If it has gone away and has not come back for a few days, I honestly wouldn't sweat it. Could have just been a software glitch or something similar.
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Old 12-03-2014, 07:07 PM   #22
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I have a 2014 wrangler and it was hesitating about 6000 miles on it. Took it in and they said there was an "update" for the software... get the jeep back and it has ran fine until last week. It died twice while driving in traffic taking kids to school. They said it was the cam and crank sensor not communicating properly. Talked to them today and they said my oil had never been changed and was excessivly dirty and "clumpy". Of course they had just changed the oil 3 weeks ago! Now they say that they changed the oil and filter for free and it's fine.

I guess my concern is that I have a jeep that is going to have these problems permanently...Any thoughts?
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Old 12-03-2014, 08:28 PM   #23
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Quote:
Originally Posted by robbyjobs View Post
I have a 2014 wrangler and it was hesitating about 6000 miles on it. Took it in and they said there was an "update" for the software... get the jeep back and it has ran fine until last week. It died twice while driving in traffic taking kids to school. They said it was the cam and crank sensor not communicating properly. Talked to them today and they said my oil had never been changed and was excessivly dirty and "clumpy". Of course they had just changed the oil 3 weeks ago! Now they say that they changed the oil and filter for free and it's fine. I guess my concern is that I have a jeep that is going to have these problems permanently...Any thoughts?
If it happens again try a different dealer

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