Accent MC (2006-11) :: 2009 - Check Engine Light On / Rough Start Almost Like A Misfire
Dec 16, 2015
Yesterday my car had a rough start (lasted all of 5 seconds) and it threw the check engine light on. Now other symptoms. It was a rough start, almost like a misfire then it idle fined, and drove my 60 mi commute home without issue. I had fine acceleration, gas mileage idle etc.
I got home and turned it off for 10 min and it then started normally and ran fine again. I'm thinking it was just a random miss that threw on the light, but I'll take it to Advance to get the code later today.
I replaced the plugs about a year ago with cheap-o plugs so it may be time for a replacement again. I thought maybe an o2 sensor but there wasn't a drop in mpg, at least anything noticeable.
And its been a few days since I've gotten gas so I'm doubting just a gas cap issue... The CEL did NOT flash, only solid the whole time.
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I started my Accent this a.m. The Check Engine Light is on and it runs really rough. I left it here at my apartment - it's that bad. It's got 27k miles.
The only other thing to note is that it's been very cold (for Northern California anyway) - around 45 degrees F right now.
First-time poster, haven't had any problems with the accent except for a sun visor that was replaced under warranty last week. All scheduled services done at the Hyundai dealer.
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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'm having problems with my accent, is been running not so good , and had a check engine light, indicating a misfire cylinder 3 and 4, i was told to put a can of Seafoam on the gas tank, but that didn't work. I replace the spark plugs (not the wire) and air filter and still running bad. Is not happening all the time (check engine light) but you can tell is running ruff at all time. I don't know if I need to change the spark plugs wires. I don't think is the spark plugs wire, they don't look bad or damage.
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The check engine light came on after cleaning the engine and the engine runs rough. Where to look. 2007 Hyundai Accord.
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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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So recently my 2009 hyundai accent has been idling rough, and has been very sluggish when accelerating. Usually the rough idling is the worst when the car is first turned on and tends to tone down as the car keeps running. I had the codes red and I believe it was C0302 C0303 C0304, saying that cylinders 2-4 were misfiring.
I replaced the spark plugs which didn't fix the problem, although cylinder 4 did have a small amount of oil above the spark plug and a little bit more below the spark plug, I am not sure if that means anything useful or not. I don't have a way to check the coils directly but I swapped coil 2 with coil 1 and checked the codes again and it was still cylinders 2-4 misfiring, so I would imagine that means the coil isn't the problem. I then tried spraying WD-40 around the vacuum tubes, and if the intake manifold is on the back of the engine I tried spraying it around that gasket as well, but I didn't notice a change in the idle speed.
At this point I am not entirely sure how to proceed, from what I have read the issue causing a misfire would be either there isn't a spark, which seems unlikely at this point, or the mixture of fuel to air is wrong. That is the part I am unsure of how to diagnose/
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Rough start like some thing missing, check engine light came on, shut off car checked my oil, ok, restart runs smooth but check engine light stays on, went to dealer 8 mile drive, car ran fine ????
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Car dumbie back again with another question.The diagnostic for my check engine light indicates numerous cold start misfire codes. The cylinders are OK. That was checked during the diagnostic.The fuel intake is carboned up. It is recommended that I clean the intake manifold. Does this mean cleaning the fuel injectors, the throttle body or both? 2006 Passat VW....
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I go in this week to recheck my nagging check engine light. Flashes after a warm start, then stays on. Been there once already for it, it has come on too after a cold start... Last time they said it was a very vague miss fire code.... It did shake a bit... On the plus I get to drive a nice new Elantra again.... On the down, I never want my car back after driving it ...
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My check engine light came on in my 06 toyota avalon. i had the code read at pepboys and they said it was something like 0300 misfire. i took it a few days later to my personal mechanic and he said nothing popped up when he tested the code. i notice the car (engine) is running a little rough though. What is the firing pattern as i want to try and fix by putting new plugs and coils.
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In the last month, my car has had an awful time starting on 2 different occasions. The first time it ran really rough for about 1 minute then was ok. The second time was the same but the engine light came on. Took it to an out of town dealer and he said it showed a misfire code but could never find anything else and all looked OK. Spark plugs?
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I have a 2003 ranger and have had ongoing problems with misfire cylinder six and have had three different mechanics diagnose the problem as a bad ground. I have replaced all plugs, wires, coil pack, injectors and am constantly pulling the plug on cylinder six, cleaning and often replacing, I also disconnect the battery so it resets the check engine light and it runs fine for about 100 miles and starts running rough again and on goes the check engine light. I have 134000 miles and have maintained it since new.....
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Bought a 07 GS450h w/ 82k on it last week thursday. car was serviced at 1 dealer it's entire life and battery was changed before I took delivery. After 100 miles of driving check engine light came on and i read 10 codes.
The codes are:
P0300 multi cylinder misfire (6 times)
P0301 cylinder 1 misfire (2 times)
P0303 cylinder 3 misfire (2 times)
Am I just looking at a simple spark plug change or is there something in particular I should look for? Is it worth the effort of bringing it to the dealer to repair?
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Just bought 2007 Gs 350 in Dec 2015 with 60k miles. The other day I filled up with gas and drove to work. On the way home check engine light started blinking, check VSC appeared on display screen and traction light came on, car ran rough, and wouldn't accelerate. Got home and searched the net.. So I removed gas cap... No change.. Then removed neg battery cable for 10 min. Fixed problem for about 10 min. Then it all happened again. Next morning took it to Lexus dealer. The rep called and said it gave misfire cylinder 3. They said they checked valve springs and they are good, exchanged coil pack with different cylinder and still misfire #3. He said has to be injector so they want to replace injector ....
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This morning started to drive to work and the check engine light came on or actually did not go off. Not sure which. Anyway it is a steady light not blinking and the car runs fine. Problem is that the warranty is out by about 3 weeks, not by mileage and I have an appointment at the dealer on Monday. If I take it to Partsource and have the code read will it delete the code or turn off the light. Just wondering as I don't want to spend money at the dealer if whatever is wrong is not covered under the emissions warranty if I can get the code and fix it myself. Don't want the code deleted either if the dealer needs it.
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As the title says, my CEL goes on and flashes too.
I've read up a bit on why the CEL comes on/flash and it says it has something to do with the exhaust system and if continue operating will damage the catalyst converter (which I don't understand since I'm a car dummy.
In addition, the engine vibrates like crazy. I can feel the engine vibrating when I'm inside the car as well.
I already got the car tolled to the dealership and they kinda just told me it might be misfirings and then they said they couldn't locate the problem. So my car basically has to stay there until they open again on Monday and hopefully they will figure out the problem/fix it under the warranty and call me back.
The problem arise late Friday night and I just did a 30K maintenance on Thursday. (but the car already has 43,000 miles on it).
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My check engine light has been on for months and the only code coming up is for the VSS. I got the VSS replaced and the light came back on as soon as I hit 70 on the freeway. Checked the code again and the same one came up. Is this a common issue with 06 Accents? I'm wondering if it might be a wiring or computer issue... My ABS light is also on, would this have anything to do with it?
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I just bought a used 2009 Accent. After a few months, I had it in for an oil change and the mechanic said there was NO air filter even installed in the car. Obviously I know enough that I need one, so I had one put in. Within a few miles of doing that, the check engine light came on. I took it to autozone and it gave error P0172 which appears to be an oxygen sensor. I would really like to know if it's possible the previous owner took the air filter out on purpose because they knew that the check engine light would come on if they put one in.... etc?
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Today the CEL on my 2010 HB with 30,000km came on and the car ran rough like it had a bad spark plug. I went straight home and luckily had a set on hand and replaced them. Car now runs like before but the CEL is still on.
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I just bought a Hyundai Accent 08, and the check engine light has been coming on after I put gas in the car, it doesn't run poorly, it only happens after I put gas in the car. and usually after I drive it a while after. Not sure what is going on?
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