Accent RB (2012+) :: Rough Idle / Mild Shaking When Cold
Feb 11, 2015
I bought my 2012 Accent a few months ago. I have been noticing that when its cold it has a bit of a rough idle. Nothing bad, no reving, but just a general mild shaking. No check engine light either. It happens in park, reverse, neutral, and drive. It stops and runs smooth after a few mins of driving. Since I bought it I have been using Top Tier gas and a bottle of gumout at oil change. Could it be just the way the engine is, since it is a small 4cyl? Like I said its not bad or affecting the way it drives, just seems strange to me.
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When I start the car and its cold outside the car is shaking like a leaf for about 1 minute and when I arrive at 3000rpm there is like a vibration in the steering and in the pedals.
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While driving on the freeway my car started to surge as if it was starving in fuel. I had to press more gas to go the same speed. My gas tank was at a 1/4 full so I pulled into the gas station to fill in gas. As I was leaving my car could not accelerate while pressing the gas pedal. I could floor the gas and it would go only five miles an hour! The engine temp was okay, no engine lights, and no weird smells. I was fortunate to be close to home and slowly made it letting cars pass me on the side. I called the road side service who towed my car to my dealer. They checked for codes, ran fuel injector cleaner twice through the system, checked the fuel pump, and the pressure on the fuel system, no problems. The third day they gave me a Sonata for a loaner and I allowed the service manager to drive my car to see if the problem reappeared. No problems found and I picked up my car today. The problem hasn't reappeared yet but I am keeping track of any rough acceleration or idle.
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Noticed this to be a problem with our older 2011 Accent, now with the 2012 Accent.
The car has a rough idle usually in mornings, it seems like it is going to stall at stops, it also has a tough time accelerating.
The computer scan does not show there is anything wrong until the problem becomes worse.
This is what I have discovered through the 2011 Accent. Car will stall at stops. Very inconvenient in rush hour traffic. Until they replace the Crankshaft Point Censor, the problem would not go away.
I would insist on looking at this rather than replacing sparkplugs or having any other service performed if one is experiencing these same symptoms. The good thing is it is under warranty.
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I'm new to diesels. I just bought a 2004 F250 with the 6.0 V8. I have the high and low circuit, contribution codes on cylinders 4 and 8. I've only had the truck for a few days but I've been reading a ton. The symptoms are hard start, rough idle/shaking, no power when cold. When it heats up and I'm over 2000 RPM it seems to be just fine. Even when hot and below 2000 RPM it does ok. I've check the FICM. It reads 48V with key on and 48V running. My plan is to do the following:
Change the Fuel Filters
Change the oil filter
Change Air Filter
Change oil with 5-W30 synth and I have both Hot Shot/Rev-X
If that doesn't work, I'll replace the two injectors. How does that sound.
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I have a 2006 Hyundai Accent that won't start. My wife was driving home the other day, and while she was sitting at the light she said she noticed a sudden change in the idle. She said the car starting shaking a little and idling really rough. When she tried to accelerate after the light changed, she said the car sputtered and would barely go.
She was only a couple of blocks from the house so she continued home. The car made it the rest of the way home, but she said it never went over about 5 mph even though she was pressing the accelerator as she would if she were going about 30...the car just never responded. When she pulled into the garage the car died as she was turning. Now it will crank but it won't start at all.
I tested the crankshaft position sensor with my multimeter and it was bad. I bought a new one and put it on, and I tested it immediately. The new one works, so I plugged everything back in and tried to start the car...nothing, just cranks and won't start. It's getting fuel and fire as well (tested both), but it's not hitting on any of the cylinders.
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Just bought a 2015 golf TSI 4-door. First time VW buyer so Im not sure if these are normal or I should bring the car in to get checked.... At a dead stop when I accelerate the car seems to shake a little (until 2nd gear kicks in) then it stops shaking, Also, When Im in traffic and I go from dead stop to accelerate to slow down again, it feels like it is down shifting very hard.
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2007 Accent Hatchback. Put gas in it from an Exxon we have bought from before with no problems. My kids car, running on vapors, put 1/2 tank of gas in. Pulled out of gas station and car starts running really rough, shaking. Still running though. I have gathered some knowledge from other threads, like timing belt needs to be changed (65000 on car). I replaced the plugs as an initial attempt at correcting the problem. Runs better, not great. Saw a thread with changing to better gas, will try that.
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Yesterday I was driving home from a long road trip (1425 miles in 2 days) and I was listening to my stock radio/speakers. It was a bit chilly with the front windows down, but too warm with them up and I didn't want to turn on the a/c. (no specific reason. I just didn't want to). So I thought I would just open the back windows.
As soon as I did this, the radio bass was just shaking the whole car. It was nuts. I wasn't even listening to anything with a strong bass to it. I closed the windows, it went away. It was better when I turned off the super bass, but I found this odd. Especially since I see people put these large speaker boxes in the trunk.
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I have problem with my 2006 Prius , idle shaking and when the engine stops its really rough.
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I have been searching and it seems I am not the only one who has a rough idle with the I4. It is very rough even without the A/C on. I can see the dash shaking, I can feel it in the steering wheel, brake pedal, seat, and arm rest.
The dealership cleaned my throttle body and MAP sensor (They forgot to put one of the screws back in the MAP). This is the third time they have cleaned them. When they returned it to me I told them to keep it until it is fixed. So they took it back in and decided that it might be the motor mounts so they went ahead and replaced them aside from the dogbone or whatever it's called.
When they returned the vehicle it was still having the same issue, they told me that its just the nature of the beast and to live with it. Well my neighbor has the exact same car, and yes it does have a SLIGHT vibration in gear but nothing like mine. I can't stand this car I really wish I would have bought something else.
I currently have 70,000 miles and for the last three oil changes I have been running Full Synthetic in hopes it would work but it has made no difference.
Just a note I have had multiple problems with this particular dealer lying to me. They even ripped up my passenger seat and would not fix it they said it was pre existing. I am over the seat I don't care anymore but I am tired of the rough idle. I plan on taking into another dealer but I am hesitant because they told me if there is no real problem I will have to pay in full for the diagnostic.
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My exhaust system was replaced on my 2005 Corolla in August. After driving it for just a few days, there was a shaking when the car idled. The mechanic replaced two engine mounts and the idle was much worse! He said it was ok to drive, so I started on my planned trip across the country. In Denver I took it to a mechanic at the Toyota dealer and they adjusted the throttle. It was better for a while, maybe a week and 1,000 miles. Now it is worse than ever! Having gotten two totally different causes from mechanics, I am not sure what to do next.
Also just before the exhaust sytem went, I had the 60,000 mile service done and had the car totally checked out by both Toyota, and an independent mechanic who specilizes in Japanese cars. After a car wash in California, the maintence required light came on.
What is going on?
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A couple of days ago (Friday, Sept 14th), I noticed my 98 V8 5.0 liter Mountaineer was idling rough. I had the codes pulled and got P1401, P0455 and P0308. I did find a vacuum leak and fixed it (changed the air filter and cleaned the MAF while I was in there). I also replaced all the plugs (based on the P0308 misfire). I cleared the codes after that with a neg battery pull.
I'm still running slightly rough at idle, but not as bad. However, I have found that when I get up to about 45MPH (1500 RPMs) I started to get a worrisome shaking/ vibration. It's difficult to tell where it is coming from. If I let off the gas, or give it more and go up to about 50 mph, the shaking stops. It is only when I'm pressing the pedal in this range (like it is having trouble switching gears, perhaps?). Over the past two days of driving it and testing, I have been to autozone and had the codes checked. Nothing comes up, and no CEL.
I just had a new trans put on about 6 months ago. The only thing that preceded this issue was I got an oil change the day before this started at a place I don't normally go to (unlikely, but since they didn't write the type of oil they used on my window tag, I figured I'd mention it). I've read some suggest it to be a tire issue; but that strokes me as odd, since the shaking only happens when applying gas.
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I have Subaru B9 Tribeca 2006. Week ago started the following problems - after starting up, engine is shaking (rough idle) for a few (20-30) seconds and then it's OK. Then I got Check Engine, Cruise and ABS lights on. Diagnose shows mistake in 1st cylinder. changed spark plug, air filter, checked all connections, cleaned injector and throttle. Lights went out and engine was working as new. but the second day car had rough idle again....
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I have a great vw 2008 rabbit with 115,00 miles on her. I just completed a round trip. On my way back during terrible stop and go Washington DC traffic..I noticed the car started to rev a bit. After that the idle has been rough with some light shaking. No engine light, but it does sound almost like it is choking a bit. Not extreme..but definitely not the smooth engine sound I had. I am guilty of NEVER HAVING MAINTENANCE on her..so I had new spark plugs put in and a new air filter. The problem is less..but the idle is still on the rough side.
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It's a 2004 V8 Touareg with 100k miles.
Getting horrible misfires and they're jumping around to different cylinders + other intermittent codes. The symptoms are ROUGH idle, and hesitating/shaking under acceleration.
The MIL has never come on in this car. But, it illuminates when you turn the key forward. (Almost like previous owner coded the light out?)
Replaced all 8 spark plugs, just ordered 8 new ignition coils. Hoping the misfires are the coil packs but obviously theres some other stuff going on here.
Pulled codes 2 weeks ago:
1) random/multiple misfire (P0300)
2) misfire cylinder 4 (P0304)
3) misfire cylinder 8 (P0308 )
4) warm up catalyst efficiency below threshold bank 2 (P0431)
5) secondary air injection system insufficient flow bank 1 (P0491)
6) secondary air injection system insufficient flow bank 2 (P0492)
7) 02 Sensor Circuit Slow Response Bank 2 Sensor 1 (P0153)
Pulled codes 1 week ago:
1) random/multiple misfire (P0300)
2) misfire cylinder 2 (P0302)
3) misfire cylinder 3 (P0303)
4) 02 Sensor Circuit Slow Response Bank 2 Sensor 1 (P0153)
Pulled codes tonight:
1) random/multiple misfire (P0300)
2) misfire cylinder 2 (P0302)
3) misfire cylinder 3 (P0303)
4) misfire cylinder 4 (P0304)
Cleared codes. Swapped ignition coils from 2 & 3 with 7 & 8. Drove around the block, then re-ran them:
1) random/multiple misfire (P0300)
2) misfire cylinder 4 (P0304)
3) misfire cylinder 5 (P0305)
4) misfire cylinder 6 (P0206)
5) misfire cylinder 7 (P0307)
6) misfire cylinder 8 (P0308 )
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I have a 2008 Ford Focus - 4 Door Sedan SE 60300 miles.
I've gone to 3 mechanics now and no one can seem to figure out whats wrong with my car. Here's whats happening:
About 1 1/2 years ago I took my car to get an oil change at Jiffy Lube (Yeah never again). When I left, my car was idling funny... Silly me didn't take it right back and have them tell me what was wrong.. so I let it go, well about a month later it started idling even weirder. Basically it feels like my car is shaking when it gets under 1000 RPM and I notice my RPM dial start falling and bouncing back, acting like its going to stall, but never does. I notice a loss of power when this is happening (on speed up and just accelerating in general). All of this is random, I can't seem to put a pattern to it as to when it happens. One day I'll start it up and everything is perfect... Then I'll shut it off and restart it later, and it starts vibrating and puttering again... No signals as to if its hot/cold or wet/dry, no environmental variables seem to cause it to happen anymore than others. And there is no check engine light on, everything "looks" normal.
What I've had done to it so far is:
Air filter changed / reseated
3 oil changes (keep getting told it will work)
Throttle cleaned
Computer reset for idle sensor data rebuilding
Now I'm told that I need new engine mounts, and that could be the reason for the vibration. I'm thinking that the vibration caused the mounts to wear out, more so than the mounts being the cause. Mainly because I don't see how bad mounts could cause loss in power/bad idling.
What could be wrong?!? Really bugging me and don't want to keep throwing money at it for phantom solutions. Seems like mechanics I go to can't figure it out unless there is a check engine light on with some diagnosis code to tell them exactly whats wrong.
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My 99 Explorer XLT V6 SOHC has been misfiring lately. In idle the RPM needle fluctuates a bit and the vehicle vibrates and shakes. At night when the lights are on I notice them dim a bit as the engine struggles in idle. It doesn't stall very often at all. Accelerating I notice way less power and the engine studders. That's when the engine light comes on flashing. Then remains on solid afterward. I brought it to a mechanic friend who read the code and it was cylinder two misfire as well as the O2 censor.
I replaced the plugs and leads and censor. Noticed the plug in cylinder two had little to no gaping. Thought I had fixed the problem. The vehicle ran perfectly. Three or four days later driving on the hwy same problem came back. Thinking it must be the coil pack I got one for a good price and replaced it. Again, the truck ran great for four days and now the problem has returned. Same thing, shaking studdering and flashing engine light. I have verified the locations of the wires and plugs a few times so i believe they are all properly installed.
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Having issues on cold morning starts where the car is shaking/trembling at warmup idle? Obviously this problem isnt as prominent at this time of year...
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I'm having a problem with my 6.0 back in September I started to notice a little miss with some black and white smock while accelerating so I took the truck to a power stroke specialist near my house to have it diagnosed they said my number 5 injector was starting to go bad so just this last week I finally got up enough money to get the injector changed I got the truck back yesterday from the mechanic. While driving I get a lot of shaking right around 1500 to 2000 rpms when I let off the accelerator it smooths out if I mash on it and keep the RPMs above 2000 it smooths out the truck still has a lot of power no check engine light has ever been on through this whole ordeal and there's a rough idle I guess the best way to describe the shacking would be if the truck was a standard shift and you were pulling a hill in to hi of a gear.
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My 99 Explorer XLT V6 SOHC has been misfiring lately. In idle the RPM needle fluctuates a bit and the vehicle vibrates and shakes. At night when the lights are on I notice them dim a bit as the engine struggles in idle. It doesnt stall very often at all. Accelerating I notice way less power and the engine studders. Thats when the engine light comes on flashing. Then remains on solid afterwards.
I brought it to a mechanic friend who read the code and it was cylinder two misfire as well as O2 censor. I replaced the plugs and leads and censor. Noticed the plug in cylinder two had little to no gapping. Thought I had fixed the problem. Vehicle ran perfect. Three or four days later driving on the hwy same problem came back. Thinking it must be the coil pack I got one for a good price and replaced it.
Again, the truck ran great for four days and now the problem has returned. Same thing, shaking studdering and flashing engine light. I have verified the locations of the wires and plugs a few times so i believe they are all properly installed.
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