Elantra MD (2010-15) :: Rough Cold Start And Performance Lags While Driving
Dec 4, 2015
Wife has a 2011 Elantra 1.8L... 5 years old and only has 24,000 kms on it.
Barely uses it, mostly for short trips, keeps it parked outside in the elements.
I've noticed the fuel mileage kinda sucks and has a rough cold start and performance lags while driving.
is it worth replacing the spark plugs? Always seems to fix these kind issues with my past cars.
Even with the low kms I assume they might need replacing since its 5 years old?
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I've got a 2006 Elantra with 102,xxx miles. When starting the car, especially a cold start, it ignition is rough, sometimes a jolt. It runs fine after that. What might be the issue? FYI, i replaced the spark plugs in August or so.
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I have had a rattle that lasts 2 seconds on my 2012 Elantra for the since about 2 oil changes ago. The car has 152,000 miles on it and I've changed the oil regularly per the maintenance schedule, although not always with a Hyundai filter.
I'm strongly suspecting that this is the timing chain tensioner, but I could be wrong. Other than this, the car runs fine. I tried having the oil changed by the Hyundai dealer with the OEM oil filter and the problem appears to be a little worse. It first started to appear on cold start up after the car sat for >8 hrs or so. Now, it appears on cold start up >2 hrs. I noticed that the dealer put 5W20 in it.
I'm wondering if lower viscosity oil makes the problem worse during hot weather. It seems when the weather is colder it takes longer for it to appear. I'm wondering what my options are here. I really don't know how much $$ it is to go after the tensioner and how critical it is - the dealer said they do replace them and that doesn't always fix the problem though I'm not sure what he meant. I have read a few other posts about tensioners here, but I'm also wondering if this is an issue with the new engine.
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Mine is just like this other owner's Elantra. Stealership say's "it normal". Surprise, surprise!
When I asked him how come my car wasn't doing it 50 miles ago and the 2013 loaner doesn't do it, his answer was "it's warrantied to 100k". I call BS. It's the timing chain tensioner or the the guides or both.
I say Hyundai knows about this and does not want to pay for warranty work because it's a costly job labor wise. Just like the Sonata's tensioner problems of the past.
2013 Hyundai Elantra Ticking noise - YouTube
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This just started yesterday on cold start and happened again this morning and this evening always after sitting for hours. I would call it a chatter sound, very distinct and only on the first start. Never heard it before. Have 97K on car, will be changing the plugs soon. Once it is warm the sound is not there on starts. It is only when starting, sounds fine once running. What would only be noisy when cold like this? Timing chain? Valves? I'm going to let others with a better sense of engines than me (my son and his friend who are mechanics) listen to it and see what they think. But it needs to be cold. Never heard such a sound on my Hondas which makes me think it may be the chain. Funny how it just came out of no where.
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When I leave the car in the parking space for a couple of days (in cold weather) and then start driving it, I notice that when I brake I hear noises (like thud.. thud...). Eventually as the engine warms up the noise goes away. I can never reproduce this at the dealer as I have to drive half an hour to the dealer and by that time the noise goes away. Should I be concerned?
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Here is the link : [URL] .....
Someone with a similar problem said it was a timing chain cover issue and someone else a cam shaft issue. It's a 2012 elantra limited 1.8L with 55000km the short block was replaced around 45000km.
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There's a thread similar to this on the front page, but I wouldn't exactly describe my issue as a "rattle".
I've got a good video of the sound it's making here : [URL] .....
It's definitely much louder with the hood up--doesn't seem quite as drastic when sitting in the driver's seat.
I've come across the thread here on the engine rattle/knock fix, but I'm not sure if this is the same thing. Would this be considered a knock?
It's a 2011 Elantra with about 82,000 miles on the odometer. It has an extended warranty on it, in addition to the 100,000 mile powertrain warranty on it, so it's at the dealership this morning.
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what I have is for the 10-20k miles I've own this car (now at 130k), the first mile or 2 of driving the transmission goes to a higher rpm than normal before shifting to the next gear. Is this indicative of pending failure? It has always done it. Also, I try to do the transmission drain fill every other oil change or so.
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When starting the car and ONLY when it's a cold start, like sitting overnight, it makes this weird "groaning" or "whining" noise. I took a video of it because if I drive it to the dealer, then start the car there, it's not going to do it as it only happens after a long period of being off. Listen really closely after the car starts and right before the radio comes on, you will hear a faint groaning noise. It's louder in person, but this is the best I could do.
[URL] ......
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So I had 1st rough cold start today on 2010 Prius with 72K. Wasn't too cold low 40s. The fix was to shut it down and then turn on again.
Engine sounded like it was working on 3 cylinders. It is probably ignition or perhaps valve train issue.. with ignition being prime suspect. If it happens again I'll pull and check plugs.
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I've had 2 Elantra 2012 models 1 a gls the second a limited. As far as transmission issues both Elantra's from a cold start after allowing RPM's to idle down before taking off they both have started shifting hard going from 1st to second gear 1st car was around 8-9 k miles now 2nd started at 3 k miles. Since owning 2 cars same make same year same transmission and many times to dealer 1st car ended with Transmission replaced 2nd has now started doing the same thing they reset adaptive and next day did it again its now back at dealer waiting for them to diagnose again.
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I have a Hyundai Elantra Limited 2012. A few months ago the Short Block was replaced because the engine was noisy. Now it started to do that noise, if I remember it's a little bit similar : Youtube video: [URL] .... Or search youtube for: Hyundai elantra 2012 engine rattle noise
It rattled very loud for 1 or 2 seconds on a cold start the other day too. Noise appears to be coming from the engine. It does it pretty much all the time, at idling, when I accelerate it accelerates too and when I slow down it kinds of do too slowly. Need another new short block or is it something else like the timing chain or a bearing?
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2013 Elantra with 62k miles. I am dealing with a strange issue where I experience sudden engine shutoff and no-crank no-start situation when I attempt to restart. This typically happens during warmer weather (above 95F / 35C).
When the engine shuts off while i'm driving, the following symptoms occur:
-Temperature gauge (all bars) disappear
-Shift level selection disappears from dash
-stability control light is illuminated
During that state, I'm unable to restart the engine (even when the level is in park or neutral). Anytime the attempt to restart, the following symptoms occur:
-all of the above symptoms when engine shuts off
-TPMS light is flashing
-engine does not crank when attempting to restart.
-Unable to move shift lever from Park when key is in ON position, even when depressing the brake pedal (have to use shift lock release to get it out of park into neutral). Trying to start the car in neutral makes no difference.
The car stays in that strange state anywhere from 5 minutes to several hours. After that, I'm able to start the car and drive it for 10-60 minutes, until above issue repeats.
The issue is NOT any of the following:
-Battery
-Starter
I know that some users have reported a similar issue due to a bad inhibitor switch, but with that issue, only the gear selection disappears from the dash (while the temp gauge and other functions remain normal). Could it possibly be a bad ECU?
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My moms has a 2010 Elantra with 30,000kms on the clock, and we have noticed since new when the vehicle is started cold in the morning it seems to run rough for about 30-60 seconds then stabilizes.
It's almost like it has a slight misfire, or slight fuel flooded from sitting overnight. Now if course we have taken it to the dealership twice for this issue and dropped it off overnight for a cold start, and both times they cannot re-produce the problem.......surprise.
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97 4.6.. So it would appear that I have the wild goose chase of codes. The major symptoms are rough idle and very poor performance. I started off by cleaning the egr valve and ports. Then I checked the egr valve itself and watched the valve open and close under a vacuum. I was suspecting the DPFE sensor but I wanted to trying something else first. I was under the Impression that if at idle you apply a vacuum to the egr valve it would cause the engine to "stumble and stall". I did this and there was no change in the way the engine was running. So now I'm lost as to where to go from here.
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So it's finally been nice this week, only problem was it was Humid as it poured for more than 24 hrs the day before. I tried using my Ac but all it was doing was blowing warm air. I figured it was the car being hot since it it black and it was sunny & I did have the car running. I tried using the Ac yesterday and it was blowing slightly colder air but still warm. I don't know what the problem is and so I went to my moms elantra to compare since we have the exact car just different colors and her car was blowing air as if it was straight from the arctic.
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So I've noticed the past few days that the air coming out of the air conditioner isn't as cold as last summer. The car is only a year and a half old (2013 Elantra purchased Feb '13), so this isn't a problem I was looking to have so soon.
I wouldn't call it warm air, but it's not cold. Temp remains the same if I am driving or idling.
Luckily isn't hasn't been too hot down here in SoCal lately (70s-low 80s) but I know it will probably be warming up into the upper 80s and 90s soon. I'm guessing I am taking it in next time I go to the dealership for an oil change.
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I have a 2013 Hyundai Azera with the 3L V6. I only use 93 octane gas (as recommended) and only use either Shell or Chevron. Each day, when I get in the car for the first time, I can count on it running rough and having inconsistent performance and some minor sputtering or misfiring (don't know the difference) until the car gets warm. Once it gets warm, all is well. It has 24k miles. Any thoughts on what may be the root cause? Should I change the fuel filter so soon? Does that matter being it gets better when it warms up?I change the oil religiously whenever the computer in the car tells me it is time to do so and use Mobil 1 synthetic.
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Since day one there has been a squeak within the cabin, sounds almost like styrofoam cups being rubbed together! Mainly with bounces but getting worse and worse, to the point a simple turn causes it. Almost sounds like inside of car moving within body.........shifting might be better. Nothing in trunk or under seats, checked all that. Lived with it but drives me insane lately.
Second it runs very rough, and with acceleration RPM can jump to 6000 with a tap but trying to merge onto highway leaves me sputtering at 1000. Or it suddenly speeds up like I gave it a ton of gas, but I didn't change a thing.Idles loud too and "misses"
I am a single mom , my only car, dealer 40 minutes away. I just cannot lose a day of work to sit with my car for the recall etc. Will service give me a loaner for a day? Yes I will call them, I just wanted some info before I do! Not too trusting here.
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Occasionally the car would shift rough though the first few gears and then clear up. It did throw a code awhile back, but I didn't take it in right away as the check engine light went off. Last time in they were unable to find a code and I was down to the last 100 miles of the warranty. I was heading in to get the sunroof repaired (For the 3rd time I must add) and on the way there it shifted rough and the check engine light came on. Good timing indeed as I am second owner. Turned out it was the transmission temp sensor and so far it seems resolved. The sunroof needs all new parts besides the glass so they will have me come back at the end of the week. Other then that car is running great and I am still getting around the 35MPG with 80% freeway.
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