Accent MC (2006-11) :: 2009 - Running Rough At Idle And Would Crank Hard / P0496 Code
Check engine light had come on, the car was running rough at idle and it would crank hard. So I threw my code scanner on it only to find out it wouldn't link. Drove it to O'Riley's and had them pull the codes. It ran rough and had next to no power on the way there. O'Riley's pulled the codes and we got a P0300 (random multiple misfire), P0301 (cylinder 1 misfire), P0302 (cylinder 2 misfire), and a P0496 (EVAP emissions system high purge flow). So once I got it back to the house, she told me that she had the codes pulled once before and that they told her it could be her gas cap so she replaced it. She also stated that she had replaced the plugs about 3 months ago.
So with new gas cap and new plugs, and these codes, I did a bit of research and come to the conclusion that it'd replace the purge solenoid. The solenoid was making a pretty loud ticking noise and when I pulled it off, it rattled so I figured that was the fix. Pulled her plugs and you can clearly see that cylinder 1 was running VERY lean and cylinder 2 was a little richer but still too lean. Plugged the plugs back into coils and laid them on exhausted. Turned the car over and we had spark. Lead me to think the misfire had something to do with the P0496 EVAP code. Put everything back together and erased the codes. Gave the car back to her and told her to let me know if the light came back on. That was Wednesday last week. Sunday she told me the light came back on and the only code that came up was the P0496 again. When I gave it back to heron Wednesday, it would still crank hard but would start.
Battery is new and checked good, alternator is pulling about 14v and checked good and the starter checked good. My dilemma is the code and the hard crank. She told me that it only cranked hard for her once so I am assuming that has gone away but we're still left with the P0496. I am not 100% sure as to how this system operates but I understand it for the most part. She told me that she had just put gas in it before the light came on. Not sure how much time had elapsed after filling it and the light coming on but I do know she put gas in it. If it's a high purge flow, that makes me think there may be a leak in the system but I'm not sure where to go from here without throwing a bunch of parts and money at it.
Accent MC (2006-11) :: 2010 - Tachometer Reading 0 And Rough Idle / Hard To Start
I have a 2010 2-door accent, automatic. Today after driving about 45 minutes (engine warm), I stopped the car. When I tried to start again, it wouldn't turn over. Turned over on the third try; tachometer read at 0. Managed to drive home (35 miles), and the car did shift from gear to gear, but engine sounds tinny on idle. Turned off car at home and turned back on, still rough start and tinny idle but tachometer appears to be working again. No check engine light. At a loss; I've heard that there are a couple of crankshaft sensors that could do this, but I really don't know. Car is regularly serviced and has new belts (belts look fine), new strut plates, new tranny fluid, all about 6 weeks ago.
View 2 RepliesAccent LC (2000-05) :: CEL Blinking / Code P0303 - Knocking Sound From Engine
I have an 05 Accent with about 115,000 miles. It is a GLS automatic.
This morning as I was pulling from a stop light about 30 seconds from my office the car was extremely sluggish. I noticed the CEL light blinking and could hear a knocking sound from the engine. I pulled over and found code P0303, cylinder #3 misfire.
I checked the spark plug cable on the coil side it looks ok. I have not been able to check anything else yet as I am at work.
Ford Ranger / B-Series :: 2004 - Rough Idle - CEL With P0303 And P0316 Codes?
I love my Ranger. I'm quite impressed with the power and durability. I'm ticked at Ford for stopping production.
I have searched my problem and could not quite narrow it down. I have also tried several remedies with no improvement. I need to narrow it down to a specific item.
2004 Ranger, 4.0 liter, 4x4, 131,000 miles, runs great above idle.
Problem: rough idle, idles at about 750 rpm's. If i raise the rpm's to 850 and up, smooth as silk.
The truck did this a few years back. Not quite as rough and it went away by itself.
Engine light came on this time with P0303 & P0316 codes. I have replaced: plugs, wires, coil pack. I know that the #3 plug is sparking quite well. the #3 injector is getting signal to spray not sure if it is. I have 4 O2 sensors and I believe I tested them correctly (passed). The passenger side upstream or pre cat sensor has not been tested yet. Had to rent a tool and will do that in morning. I slid a piece of aluminum roof flashing between the crank position sensor and the crank pulley. Not a noticeable difference. While at idle (750 rpm's) I pulled each (#3,2,1,) (one at a time) injector wire plugs off the injectors. No noticeable difference. I pulled the vacuum line off the egg and operated it with a vacuum tool. Seems to be working fine. Sprayed carb cleaner around on vac lines. No engine surge
Accent MC (2006-11) :: Rough Idle At Stops
My 2011 Hyundai Accent 1.6 runs fantastic and has since I purchased it three year's ago until two weeks ago when my domestic partners friend changed the spark plugs, oil, air filter and stuff so I could go on a short trip and back. About 200 miles into it I pulled into a rest stop and noticed it was rough before I put it in park. As soon as I put it in reverse it was running rough and sounded like it was going to die. Forty miles later the check engine light was on and it was running terrible. A parts store recommended different spark plugs. A nice man who was there overheard the conversation and offered to put them in for me since I know nothing about doing. He said he gapped the spark plugs at 0.40? When I started it it ran like a dream until about 75 miles later and it began doing it again but the light never came on. It is doing the same thing which is a rough idle when stopped but it smooths out when I put it in park.
View 3 RepliesAccent LC (2000-05) :: 2001 - Running Rough After Filling Up
A few weeks ago my car was running perfectly fine, i filled it up with fuel and then it started running a bit rough. Would drive ok but could feel it surging and if i backed off on the accelerator it would try stall.Also the fumes in the car were a lot stronger than usual. Got home and it stalled, started it up and was idling rough and blowing black smoke :/ no engine light has come on though. I did the typical thing and googled possibilities, the mojority said that it was the purge control valve so i replaced that with a new elantra one (part numbers were the same) and its still running rough We are now thinking it could be the oxygen sensor? Have checked vacuum lines and stuff for air leaks and cant find any. Unplugged the oxygen sensor while car was running and it made no difference at all.. If the oxygen sensor was working properly it would of affected how the car was running, right?
View 1 RepliesAccent MC (2006-11) :: Rough Idle But Fine When Air Conditioner Off?
I've had my 2010 Accent for about 9 months. It's got about 63K miles on it. Serviced regularly, no issues there. Yesterday while coming home from a road trip....6 hours there, heavy driving while in town, 6 hours back 2 days later, the check engine light came on the dash. I then noticed that the car was idling very rough. When I put it in gear after starting, I can visibly see the car the shake. Having major problems accelerating, I have to mash the gas to the floor to make it go. Shutting off the air conditioner seems to work a bit, but not totally.
I should note that I live in the South East US, it was over 95 degrees when we left town and the destination was over 100 the entire time we were there. I was told this could be vapor lock, but am not sure about what to do to clear that when the temps won't drop around here for some time. I took it to AutoZone this morning to have them read the codes on the check engine light and was told that their code reader was incompatible with my car.
Accent MC (2006-11) :: 2009 - Super Rough Idle / CEL Came On
I have a 2009 Accent and after about 20 minutes of driving it started running really rough and my check engine light came on. It's worse at an idle (feels like it's going to stall out) but isn't quite as bad when I rev it. My first thought is water in the gas tank since we've had a lot of rain for the past week or so and I filled it up a day or two ago.
View 2 RepliesAccent MC (2006-11) :: CEL Flashing / Rough Idle - Cylinder 1 Misfire
I did not get the specific cel code but its what the guy told me at autozone.
Long story short. Washed engine, let sit for about 30 mins. Car started with flashing CEL and was "puttering" and very rough idle. Drove home took intake off and replace with stock, took spark plugs out and they were not wet. Then let it sit for about 15 mins. Started just fine. No CEL at all.
The accent saved the CEL and the guy told me that Cylinder 1 had a misfire.
My question is, should I do anything now even though the car seems to be running ok?
Accent MC (2006-11) :: Rough Idle - No Power Or Acceleration When Driving
I have a 2008 Accent SE and I'm having some issues... The car was driving fine the other day all the sudden check engine light came on started flashing then and just stayed on. This happen before and the car was under warranty so the dealership fixed it but now it ran out and it's happening again. Anyway the car is running very rough at idle like the car shakes and acts like it doesn't want to run. Also when driving it honestly feels like the car has no power or acceleration what so ever. I replaced the air filter with a brand new K&N filter, I also changed the spark plugs today. I put NGK's in and the problem is still the same. I had it hooked to a code reader and it said I had a misfire in cylinder 2. I thought the plugs would have fixed it but I guess not.
View 9 RepliesAccent MC (2006-11) :: Misfiring On Idle - No Code
Recently got broadsided (passenger), got the body fixed up. Now it is Misfiring on idle and only on idle...
Prior to this I had Coil go out on me, got that changed out, changed the spark plugs. It was running great then the accident happened an this Misfire on idle problem.
Took it to the shop, had them check for a code, no code. They suggested that it made be do to carbon buildup from the previous misfiring issue and suggested using STP engine treatment on it.
Accent MC (2006-11) :: 2008 - CEL Blinking / Car Started Stuttering And Idle Was Rough
I have a 2008 Accent. Yesterday the check engine light started to blink and the car started stuttering and the idle was rough. I've changed the air filter, which worked. But, it was recommended that I change the fuel filter. But, when I went to the parts store, they say that this model has a fuel strainer instead. What is that and where is it on my car? Is it easy to replace?
View 4 RepliesAccent MC (2006-11) :: Engine Was Idling / Little Rough And P0302 Code Thrown
So I bought my accent used a couple months ago. It is a 2007 SE 3dr 5spd manual. It ran nice during my test drive and the price was right so I bought it.
Now I'm wondering if there is any way to find out the service history on the car...at least the major one's (30k, 60k)?
I ask because recently the engine was idling a little rough and it threw a P0302 code so I changed the spark plugs and holy-cruddy-deposits-batman those things were black. Gapped the new ones and popped them in and its a noticeable difference. My CEL keeps coming on and throwing a P0496 code as well, virtually once every tank of gas. Its not the gas cap so my next step there is to check the PCSV and hoses.
With these little problems, it makes me wonder about any larger issues. I know the timing belt on these things is supposed to be replaced at 60k. Additionally I would be willing to bet that my ECM software is out of date. Would Hyundai have records for any of the big maintenance milestones since they are required for warranty work?
How much does it cost to have a dealer check your ECM software and update it if needed?
Accent MC (2006-11) :: Rough Idle - Check Engine Light Flashes And Then Stays On
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.
Accent MC (2006-11) :: 2008 GS - Misfire On 3 Cylinders / Rough Idle And Poor Acceleration
After scouring through hundreds of threads on this forum (which is Awesome, BTW), it seems as if this misfire / rough idle thing is fairly common (which is scary!!). CEL is on steady. Had the codes pulled; P0301, P0302, P0303. At the recommendation of the mechanic, I had the plugs replaced...no improvement. He then replaced the ignition coils...no improvement. Just finished replacing the MAP sensor. This actually had a VERY temporary positive effect. However, after about 5 miles of driving, the misfiring returned. Took the car to the Hyundai dealership, and they acted as if they didn't want to fool with it. They referred me to a couple of local repair shops...????
View 8 RepliesAccent MC (2006-11) :: Buzzing Coming From Top Part Of Intake Manifold And Rough Idle
I was in the process of troubleshooting a quick to die battery tonight (ignition on and if you put a load on it like radio and headlights, a few minutes later it needs the booster pack. ) During this time I discovered a loud buzzing coming from the top part of the intake manifold (ignition on but engine not running.) As my battery drains, this noises this thing makes change. I started the car up and let it run for a sec, then back off/ignition back on and it stopped buzzing.
On a side note, the car has been idling like dump for the last month or so. Sometimes it's smooth as silk as it always has been when stopped at a light, other times you can feel a rapid vibration in the steering wheel, seats, and floor. To the point where stuff rattles sometimes. It's definitely at its worst when the engine is cold. I was hoping it was worn out plugs, but they've just been replaced and it still doesn't run right.
Linked is a video, hopefully it works. Is this the IAC valve?
Lexus RX 2010-15 :: Check Engine Light Came Up With Code P0303 On RX350
My wife's 2010 RX350 with 75K miles on it , the check Engine Light came up with code P0303 (cylinder misfire). Since the warranty is out already so I went to my mechanic and had the spark plugs and the back ignition coils replaced. After a week, the light came back on. So I went to the dealership and they said the engine needs to be taken apart because of low compression and valves could have carbon build up already.
View 11 RepliesGolf/GTI VI :: 2010 - Code Read P0303 Misfires Cylinder 3 Detected
I recently bought my 2010 gti used with 62k miles on it about 3weeks ago. The car had an carbonio intake stage 1 and a stage 1 tune from Apr when I had bought it. On the test drive and for the first two weeks I had it I did not have any problems. A few days ago on a cold start my car threw an MIL and it was flashing. When I got to school I plugged it into the obd2 scanner. Code read P0303: misfire cylinder 3 detected.
My teacher and I went over possibilities of the misfire. Coil pack, plugs , injector, valve float( even tho this should not occur at 1300rpm cold start) we also thought that maybe because the car is direct injection the valve was not closing all the way due to carbon build up on the top of my valves which in this case I'm glad I don't have an interference head. I moved around the coil packs. What is the cause of this? I'm only misfiring at start and when the engine isn't warms up to operating temp.
Accent MC (2006-11) :: Rough Idle At Start Up With Flashing Check Engine Light (while Low On Fuel)
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.