Accent MC (2006-11) :: Slight Shudder / Light Dim When Idle
Jan 7, 2016
2008 Accent. 230,000 km's. Most regular maintenance done (belts, oil changes, filters etc). Had to replace a few coil packs in the past like everybody else with this car.
Current problem: Car was working well. It then sat for 3 days (it was cold). Now when I am in park or in drive but idle (worse) the engine will shudder at random intervals. I don't notice/hear anything when driving more than 20kmh. For the first 2 days of driving it was pretty bad while idling. The engine light went on and then turned off later in the day (before I read the code and have since reset the computer so can't read it). It would do what I'm assuming is a misfire every few seconds. It's a bit better after a few more days but still is misfiring. During the 'chug' or 'shudder' the RPM drops ever so slightly, and the headlights and dash lights dim slightly as well. When I am driving and first come to idle, it's not too bad. Maybe 1 'chug' in 10 seconds. As I idle longer is gets more frequent. No more engine light after that first day.
I unplugging each coil pack and each one when unplugged made things way worse. I assume it's not those again. Battery was tested. It's older and should get replaced this year but it was still reading strong. Alternator was tested and is fine. I unplugged the battery to reset the computer but that hasn't worked.
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On my 05 V8 with only 39K miles, I've been experience a very slight engine shudder while the car is at idle. No fluctuations in the RPMs and performance seems normal. I use Shell premium gas and there are no indicators that anything mechanical is wrong. It has been doing this since I purchased the car in Jan 2013.
I had my VW dealer check the car out and they replaced the spark plugs and some other part which can't remember at this particular moment (3:31am can't sleep) but the engine still shudders.
I took it to another VW dealer and the service adviser who is experienced with Phaetons told me to find some Ethanol Free gas and give that a try. I found a place which sales 91 Octane Ethanol free and I put in 3/4 of a take because I was pretty much already full. The shudder is still there.
Do I need to run a few full takes of the 91 Octane Ethanol free before something changes.
I would like to try and get my Phaeton idling smoothly because this slight shuddering kind of bugs me. I've read some post which stated that on some Phaetons this is normal but there has to be something I can do especially since I have a bumper to bumper VW warranty. I just feel that a 86K dollar car should idle as smoothly as my Wife's Toyota Avalon.
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A strange thing happened today. I was the first car stopped at a light on a slight incline and decided I wanted to take my foot off the brake. The incline was not quite great enough to keep the car from slightly inching forward so I set the emergency brake. This light is pretty long, at least 2-3 minutes. About halfway through this wait, I started smelling a burning smell, almost like burning wires. I'm not entirely sure it was actually my car because my windows were down but the smell was quite strong inside my car and started dissipating after releasing the emergency brake and putting the tranny in neutral. So, my question is, is there anything bad about what I did? Setting the emergency brake while in drive should be no different than having the hydraulic brakes holding the car at a light, so I don't see how the tranny was being stressed or the brakes since the car wasn't moving. Nothing else was on in my car, not the vent fan nor the radio. So was this just a coincidence or was I harming something?
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I am having a minor problem with my 05 F150 Lariat. Under light acceleration going up a slight grade the truck sometimes shudders (vibrates?). If I let off the gas or accelerate slightly it stops. At first I thought it was a feedback loop with the electronic throttle so I had the dealer reflash the computer but that didn't fix it. I've noticed that it happens right about the time the torque converter locks (looking at the tach) and I'm sure it has something to do with torque converter locking up and then disengaging continuously. Funny thing, it seems to happen frequently on the same hill at the same speed. What was done to fix it?
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2011 accent gs. We purchased the car brand new and it currently has roughly 32k miles on it. About a month ago the car started to misfire at an idle (in park and in gear stopped at a light, etc.). At this time, I purchased a new air filter, and a new set of autolite platinum plugs. Roughly 3 weeks later it started misfiring again. After a few internet searches it seemed as though some people don't like autolite platinum plugs. At this point I purchased a fresh set of NGK iridium ix plugs and figured that'd be the end of it. I test drove the car for almost an hour myself (the same night I repaired it) with no issue. On my wife's commute the very next morning it acted up again.
We took it to the dealer this morning, and I honestly don't believe what they're telling me. They are insisting the problem is with spark plugs. They say that the manufacturer recommends copper plugs only, and that would be step 1 of their diagnosis/repair which they want $130 for. At this point I declined their service, and they'll let me put copper plugs back in. They said that if it continues to act up to bring it back in after that. Ah yes, and during this whole time there has never been a check engine light.
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2004 accent, manual, 114k miles. for the last 2-3 years it had a slight stumble at idle, and it was getting 36-38 mpg mostly highway. As part of a check on the starter function, I carefully cleaned the corrosion off of both thick wires going to the starter solenoid. When I started it again, the stumble was gone. Then, after almost 400 miles of mostly hy driving, my mileage was 42+. It has never been that high. Is it possible that the corroded wires caused both a stumble and increased fuel consumption? I did nothing else to the car, and most of the hy driving was freeway at very high speed.
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I just bought this car from the original owner. She didn't take that great of care of the car. First oil change was done at 8,000 miles for example. Basically if it was broken she would fix it, but didn't do much preventative maintenance.
I just replaced all 4 spark plugs and coils since one was misfiring and didn't want to have to go back in and replace one in another few months. Replaced the AC belt a few days ago since it was cracked and worn. All other belts are fine. I drove the car around for a few hours the next day and it ran great.
Today, the check engine light flashes and then stays on. The car is idling rough at stop lights and acceleration is poor. Previously, the light came on and it was the EVAP system. Not sure which component and I was told it isn't supposed to affect the way the car drives.
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I have been experiencing some issues with my '06 rio5 (same engine as your hyundais). this forum is way more active than the kia forums, so figured id give it a shot here.
I am experiencing a rough idle at start up while the car is low on fuel (<1/4 tank). it idles rough for a few seconds, the check engine light flashes a bit, and then it runs fine.
The car is an '06 rio5 with approx 19k miles on it, five speed manual. Also, sometimes after refueling and it will just shut off while waiting at an intersection. Not sure whether these two issues are related, but thought i would mention it just in case they were.
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I have a 1991 Celica GT. 175K miles. The car recently developed an issue where it jerks back and forth at light throttle, sort of like a newbie trying to learn to drive a stick. It happens at pretty much any speed, but is less pronounced at the higher speeds (45 MPH). In addition, it will not idle at a constant speed and cycles between 1100 rpm and about 300... or kill.
I've taken the throttle body off and IAC valve off and cleaned them both but it didn't change the behavior. If I pinch the line to the MAP sensor, the idle straightens out at about 1100 rpm. Disconnecting the MAP sensor gives good idle, but no performance while driving, so not a solution.
Things I haven't done yet: check continuity on throttle position sensor, checked MAP sensor (how?).
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I have a 2007 Accent that I love but have a strange issue. I had both front wheel bearings replaced about four months ago. Recently (about the past three weeks) there has been a slight vibration at speed once I hit over 50 kph, which sounds/feels like an alignment/axle issue (almost like there is a flat tire type of sound) but there isn't any sway when I let go of the wheel and I had the front end inspected and they told me there are no loose parts.
I took it to a shop, and they said a wheel bearing needs to be replaced. So of course I took it back to the original shop and had them check it again for free - they said it isn't a wheel bearing but what it could be.
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2008 Accent. Timing belt broke. Took the head off and had valves replaced (2) and head work done. Had everything put back together. Car runs. Except it makes a slight ticking sound when warm. When it's cold it ticks a lot.
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Experienced slight vibration at idle with the ac on ranging from 780-825rpm n causes shaking. Don't remember it ever doing it before. Also once I off the ac it goes away. Also the car started dropping rpm a little when slowing down.
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I just bought a 2008 Elantra SE with 26K miles. So far, I've really enjoyed it, except for, at times, it does vibrate somewhat during idle.
I took it to the nearest Hyundai dealer, and they clipped the throttle cables to the inside of the firewall. This did make some improvement, but I still feel vibration during idle when the engine is warm (doesn't seem to as long as RPMs are up). It's almost as if the idle is set a little too low.
Maybe this is just normal vibration? It's not too bad, just noticeable. Can idle in these cars be adjusted? It seems the car is too new to have clogged fuel injectors. Everything else about driving it feels great, acceleration, etc. Do you think using a higher octane gas would work?
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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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So I've always been aware of my slight oil leak on my 2003 Hyundai Accent. But it wasn't until I took it to Firestone for a discount oil change that it started getting worse and began to actually smell of burning oil while driving. I've checked the obvious places (ie the oil pan bolt and the newly installed oil filter) and I've determined it's definitely coming from higher up in the engine. Also, when putting cardboard underneath, you can see that it drips from right behind the engine. I figure it is probably that seal that costs but loads of money in labor to replace but when checking it today I noticed that the oil SEEMS to be in the top part of the engine dripping down. I'm attaching pictures of the one spot in particular that appears wet with oil. I'm not sure what it is but I believe it is next to the injectors.
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Today I went and test drove a used 2006 Dodge Stratus SXT from a private party. Everything about the car was great except it had a bit of a rough idle; there was a slight sputtering noise when not in motion, and the car itself vibrated very slightly. It didn't bother me too much while I was driving because it accelerated and shifted fine and the engine sounded very strong, otherwise.
When the test drive was over I pointed out the noise to the owner, and he admitted that he had mis-timed the timing belt slightly which was causing the sputtering (he is a mechanic and replaced it himself). I was worried about this, but I did some research when I got home and learned that this model of Stratus has a non-interference engine.
My question is this: should that timing belt be a deal breaker for me? Will this cause major mechanical issues down the road? I know it will reduce power but I only really need the car to commute, so I don't mind if I'm not toe-to-toe with a Challenger. I'm just worried it will eventually cause a costly problem.
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I have a high milage (210K) '07 2.4L which has a slight engine rattling noise at idle RPM at cold and operating temps, in gear or park. It is a fairly constant noise at idle but does vary a little. Otherwise, engine/tranny operate beautifully with no obvious problems.
I am concerned this could be a timing chain/tensioner related issue although I also wonder if it may be some other component. I have not been able to determine the source or location of the sound.
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When I accelerate to merge onto the highway or pass my battery light blinks as well as my headlight flickering and a slight loss in power. My car has 140k miles on it, original battery which seems to test fine on my charger. I just change the spark plugs.
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I'm new to owning an ISF. I purchased it almost two months ago and couldn't be more happy with it. I know after owning a car you will start to notice more and more about the car. About a month into owning the car I was on my way to work and I stopped at a light. I noticed that there was a very slight shutter at idle. No where near the shutter if it was missing on a spark plug. After that day it has drawn my attention whenever I stop.
My question is is this normal? I know having a V8 in the car there is going to be some vibration. It's a 2009 with 29k.
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I have an 06 Avalon that I just went through heck to change the plugs on but I did it. It did not clear my check engine light and actually it is blinking now and I still have the slight shudder like the car is losing power. Should I have changed the coils and if I do will this eliminate the problem? I am getting a bunch of misfire error codes and I am trying to eliminate these issues one at a time.
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I recently purchased a 2013 forester and noticed a slight shudder in the car once I start to accelerate but it only lasts until I hit 20mph or so then disappears. The salesman tried telling me it was a normal subaru characteristic and being new to AWD and subaru I was a suckered and listened to him but after owning the car for a week it's more noticeable than when I first drove the car off the lot. I'm not sure if its the tires out of balance or my half shafts or possibly drive shafts are screwy.
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