Car Idles Rough But Drives Smooth

It is important to take a car to a certified mechanic soon after it begins idling roughly in order to prevent more expensive damage. I tried replacing spark plugs first and doing valve cover gasket at the same time as I heard oil on the spark plugs could cause a rough idle. 2001 sebring 2. the engine still idles rough but doesn't stall as much. 0 TDi 140 PD (BLB engine), with 177,000 on the clock. I have checked the TPS voltage. I have an extended warranty, (and the dealership are "diagnostic test" people - ugh) I can't get an answer and they seem to think this is a normal function of AWD. Rough idle caused by dirty fuel injectors. hi, have a problem today. When the DPFE sensor is failing or goes bad, it causes rough idling, a reduce in power, and it may cause the "check engine" light to come on. When driving the car for +/-30 minutes (usually highway miles) then coming to a stop, the car occasionally has a rough idle (sometimes very rough - might be missing). They didn't seem concerned with the engine idling problem. But NO ONE, and this includes the Chevy dealer, could find the problem. I have just rebuilt the eNtire motor, rebore 20 tho. Normally, a vehicle should have a smooth and consistent RPM rate of around 1,000. I had a very rough idle at 65k. Put the dwell meter on the car to check rpms. I have a 2010 Ford Escape and for a few years I've noticed that when the AC is on, the car idles very rough when in drive. Plugs are new but checked them anyway and they were wet. I tried replacing spark plugs first and doing valve cover gasket at the same time as I heard oil on the spark plugs could cause a rough idle. Rally Sports Car screaming around the track past the mic. Below are the four most common. Well, just finished installing my KA-T stuff and all went well. Reset the idle to 825 in park and then checked it in drive, 625 rpm. Bad Engine Mount (Idle, Accelerating and Driving) - The engine mount is what connects the vehicle's engine to the rest of the body of the car. The air filter was replaced and the hose wasn't connected properly, once connected the rough idling stopped. 4L - car runs smooth, but idles rough intermittently. All fixed, the car idles better than it EVER has!. Engine cold, Premium Fuel only. 5k RPM then it's smooth. Now when I shut it off and have it sit for more than 5 min and re-start it, thats when it will stutter and shake and when i give it gas, it bogs alot and stutters almost likes its gonna die. Very rough idle in drive but not really in park. While not every car needs closed loop idle, it can help compensate for major changes in load. I hopped into her about 30 minutes ago to run to the pharmacy and noticed while sitting at a light waiting to turn that she was idling pretty rough. You can hear the misfiring in the exhaust. By that I mean it becomes rough and feels like it randomly misses. 4L MultiAir Turbo forums, part of the Dodge Dart Garage - The Mopar Zone category; Originally Posted by cradle667 All of this info has been very helpful. This usually happens when I'm sitting at a stop light or when the car is in park. it begings to idle ro. From the moment I start the car, cold or warm its vibrating badly on idle. It frequently stalls when shifting from park to drive. This customer had a concern that the car was running rough and stumbling off idle. Drivers of direct-injected gasoline engines have been complaining about a rough idle and a check engine light that has been illuminating on the dash. At the end of the drive I ran the car's internal "Key On Engine Running" self test which didn't show any errors. I have the p1518 code on my 98 Mark VIII and here are the exact symptoms. AC Delco sparks and wires, K&M filter was JUST put on, rear O2 sensor was just replaced and all of that was after the rough idle started and none of it helped get rid of the rough idle. De-carbed the throttle body and ICV, good for a day then by the second day rough idle again. I've read some other posts in other categories, and the IAC seems to be a usual suspect. The van runs good in drive but when coming to a stop idles rough and tries to stall completely. dont drive till the temp gauge gets above the min. If I put it into neutral or park, it idles extremely smooth. > My 04 TC idles rough when in drive and when sitting at a red light. not a miss fire feel. That's what warrantys are for. But rental car fees again ($250). I drive car & a few mins later it idles smooth again. Because it is! Personally I'd check to see if the alternator is providing the right amount of voltage. Stutter is hardly noticeable in park or neutral, stutters excessively in drive or reverse. 5rpms) and the car still vibrates when in drive while stopped on a light, it stops vibrating immediately when I step on the gas. Idle problem. I have a 1991 protege dx, and I find that when I drive, often my car has a rough idle when I am in "drive" holding the brake, but if I shift into neutral, it goes down to a smooth, calm idle. I started noticing my car has a rough idle. sometime it is hard running on first gear and sometime it seems smooth. Rough idle can be cause by the AC believe it or not. It's when it warms up that the problems arise. My car idles as smooth as glass. It does not stall, but idles from 500-2,000RPM. you need to learn to let your car warm up propely, if the car hasnt been run for 5 hours or more i'd always give it at least 5 mins to warm up. Fixing Process. Basically run it hard through first and second gear hard (keep it in drive) and watch the black smoke fly out the exhaust. Got to the house and checked codes and has P0171 and P0420. It jumps around from 700rpms to 1000rpms when sitting at a light or in park. Here is a car repair that brought me back to basics. Well, when you put the car in drive (vs N) that puts a slight load on the engine which usually also makes the idle drop. I haven't been able to drive my car in 5 weeks. Nothing extreme, just some slight varying RPMs only during cold start. could this be my egr valve? if so, where can i locate this to change or clean it? some one help please. I have done an oil change, checked motor mounts and trans mount (they seem to be ok). It does not stall, but idles from 500-2,000RPM. If I go back to Drive from Neutral the car will run fine for a while, but the idle will get rough again when I stop at a stop light. As a long-time Jeep enthusiast, it didn't bother me too much. The car only has 21,500 miles on it and appears to have been very well maintained. Plus rental car fees for me ($200). It idles perfectly, and doesn't smoke when idling, but will not rev up, and smokes like crazy if you try. EDIT: today the car was still idling rough, it was jumping around between 1k and 500 RPMs when in drive, so I went ahead and cleaned the IAC like you said with throttle body cleaner, so far its pretty much gone, but it still there ever so small it's almost gone completely. Took the car out again. I just looked at the car and it is in excellent condition appearance wise, with no rust, excellent interior and shiny original paint. Recently (yesterday), it's been doing odd rough idling when in drive. the engine still idles rough but doesn't stall as much. When driving the car for +/-30 minutes (usually highway miles) then coming to a stop, the car occasionally has a rough idle (sometimes very rough - might be missing). > My 04 TC idles rough when in drive and when sitting at a red light. Hi all, I'm fighting with a rough idle when the car warms up above 68-70C ECT. It seems to be something. I've used both 87 and 91 octane gas. Car check engine light came on. I started noticing my car has a rough idle. Chevrolet Silverado 2014-Present: Why is My Truck Idling Rough? Chevy Silverado engines are known for being big but also smooth. Then the other day I started it up and it started idling very rough(my whole car was shaking). Today the car jerks at idle at red light, and i can see that RPM slight jumps up and down, like 400rpm - 700rpm. 0 TDi 140 PD (BLB engine), with 177,000 on the clock. It is because rough idle when warm can either be caused by one faulty component or through series of problems. I turn off car, wait a few mins, turn on car & it idles rough. When under way, it sounds and feels normal, but at idle the engine runs rough and the speed blips up and down quickly. For the past few months, Ive been having a realy rough idle problem. It's a 1970 225 with a Holley 1920. It idles perfectly, and doesn't smoke when idling, but will not rev up, and smokes like crazy if you try. The IQ while idling in park or neutral is all over the board from zero to 3. 5L automatic, and I'm new to the subaru's does the engine idle rough? (but they drove it 2 hours delivered to my local dealer) so it had 180 miles already -- plus whatever test drive miles were already put into it. I haven't been able to drive my car in 5 weeks. Truck idled rough and in reverse going out the driveway. The car has 130,000 miles and has had the head gaskets replaced at 100,000 miles. You may have a misfire, a vacuum leak, or a clogged/faulty idle air control valve. However, the complaint from the driver was a lack of power. Rough Idle After Warmup 10-30-2017, 08:40 PM I have this strange issue where my tudor will idle beautifully after just a few minutes of running but once it warms up to normal operating temperatures, the idle is extremely rough to the point where you think that the car might die on you. I pulled the fuses (#11/14/16) in the front box and did the PCM/TCM reset procedure. Took it for a drive about 30 minutes each way run perfectly. Drivers of direct-injected gasoline engines have been complaining about a rough idle and a check engine light that has been illuminating on the dash. 5 and stays there with no rough idle. The engine seems smooth at higher rpm while cruising. I had a problem with a rough idle and changed the idle valve, seem to sort the problem out but wen I drive car runs smooth and wen I press the accelerator to go faster is starts tp jerk and once I leave the pedal n press again it accelerates proplly. 4L, Double Overhead Cam, 165k miles. I have spent almost $1000. 7 Dodge manual truck and it idles smooth as silk. I know it's AC related because it doesn't happen in the cold months. One of the most common problems is likely a rough running or poorly idling engine. 8 i have come across a rough idle while in drive parked at lights or stopped in traffic it is slightly there in neutral/park if i bring the revs up to about 1000rpm it dissapears. Now that's smooooooooooooooooooth! Our 2012 soul does have a "periodic rough idle" but it has never stalled or appeared like it wanted to. Ya I noticed if I pay attention really carefully to my idle just sitting there parked, the idle is just a little rough, not anything drastic to make the car run bad but it’s not perfect. There is no noticeable power loss at speed. Car starts up and idles fine, will idle all day. I took the car for a drive and it started running rough. LTFT stayed at zero the whole time. The idle is pretty rough; but the rest of the ride is extremely smooth. I cleaned the throttle body and pulled the IAC (idle air control) motor and cleaned it. Tighten the air line going to the engine on the right side of your engine(3800 series 2). It is also smooth while in motion. It almost quits running. Rough idle & rough feeling at low RPM. VERY rough idle when cold, smooth when engine warm? Car is a MY97 9000 2. Computerized Engine Control System is great to start fixing your rough idles. I did not remove the thottle body from the car. in the clutch and allow the car to idle it will stall. Dirty Fuel Injector Modern vehicles are fitted with fuel injection systems, which inject fuel into the cylinders to create a mix of air and fuel to burn. Hello - I just bought a (very clean) 2004 XC70 with 75K on it. I have a 2000 F-150 with the V-6. When at a stop the car does one big shake as the engine shuts off to save gas. Rough Idle / Misfire. We fixed his car the week before for a small accident, didnt start to happen till after the accident ,they all say that. I spoke with my tuner and we agreed to re-tune the vehicle using the new post-recall ECM type. One reason for a rough idle is it could be time to clean out the fuel injectors or it could be time to change out the spark plugs. The fuel filter was changed a few years ago, and the plug wires around 120k miles. it's. Opel Corsa 1. When I first turn the car on everything seems fine but when it warms up and ive been driving for like 5min. We've been noticing for a while now that when idling right after coming to a stop, say at a light, the motor often goes into a pretty low and noticeably rough idle at around 500RPM. I would call it a vibration inside the car and by the gearshift lever when the car is in drive. I just took my 2006 Colorado into the dealer due to rough idle also. Brand new Nismo, less than 2k miles. Rough idling. Anyways next Tuesday she's booked in for warranty, til then gotta manually correct the idle with a quick blip of the throttle. I have a 2000 Lincoln LS. I reinstalled everything and the car still idles rough (1. 5 and stays there with no rough idle. I can get it to idle down to 600-900 but its always rough. At idle its smooth until I put it in drive. 7 with the same rough idle problem came from a vacuum leak behind the throtlebody near the firewall. 5k RPM then it's smooth. nissan frontier rough idle ABMforum is the automotive search engine for search forum discussions and car parts. I started noticing my car has a rough idle. Have been having engine run rough (very loud, even violent knocking and shaking) and idling high (1500-1800 rpms). com and affiliated sites. w/rough idle. I have a rough idle in drive and reverse. Just had the same experience after my 2012 Sierra sat for 2 weeks while I was out of town in my wife's car. If I go back to Drive from Neutral the car will run fine for a while, but the idle will get rough again when I stop at a stop light. While the engine is running [at idle if possible] I used a slow stream of water directed over each of the hoses until the leaky one was found. A rough-idling car can be caused by any number of issues. The fuel filter was changed a few years ago, and the plug wires around 120k miles. When the car starts it idles fine at about 1000 RPM. 2) Also interesting is the relationship with engine speed. I drove the car for about 10 min. bad at stop in drive/reverse only. Hi, I just had a lot of work done on my '88 XJ-S V12 convertible with 39,500 original miles. The 98 US WSM lists the following possible causes for "Idle speed too low and excessive engine shake":. Its not as smooth as it should be at 1200 as well. However this morning I woke up to this (see video below). IT sounds a lot like your car has a serious misfire. Defective ignition wires, restricted injectors, or. At stop lights, it sounded like a race car idling, then when the light turns green and I hit the gas, it sputters a bit and finally takes off - running fine while moving. If the ride gets really bumpy or rough, and you're not on a dirt road, there are some things that could be mechanically wrong. recently had the timing belt water pump and tensioner done. This problem started overnight. I never feel like it is going to stall, but it is not smooth. Well, when you put the car in drive (vs N) that puts a slight load on the engine which usually also makes the idle drop. But when I am stopped at a light it feels like my car is going to die. The car tends to shake when in park or stopped at a light and stalled once in park. I have done a bit of research and am stumped !. Under WOT the car will be pulling smooth up until about 4-5k then it starts to break apart. Im sitting there and all of a sudden the car starts to kind of shake, so I look down at the tach thinking its stalling, however it wasnt. Readout shows multiple Misfires on all cylinders but especially on the on 2-4-6. If you looked on from driver side fender hood open car running, you could see the wobble in the pulley of about an 1/8 to 1/4 inch. The misfire/CEL seems to occur during normal driving when the engine gives no indication of poor running. It’s likely you’ve experienced a rough idling vehicle – which just means the car feels rough and bouncy when the engine is running. When I accelerate, The car is jerky until about 3. The car will feel rough and bouncy when the engine is running. I have checked and cleaned idle speed control, vacuum leaks, and most systems to do with idle. If the ride gets really bumpy or rough, and you’re not on a dirt road, there are some things that could be mechanically wrong. Basically run it hard through first and second gear hard (keep it in drive) and watch the black smoke fly out the exhaust. This Porsche Cayenne S Rough Idle Stumble is and example of one of those instances. Well, when you put the car in drive (vs N) that puts a slight load on the engine which usually also makes the idle drop. Its downright rough idle. EDIT: today the car was still idling rough, it was jumping around between 1k and 500 RPMs when in drive, so I went ahead and cleaned the IAC like you said with throttle body cleaner, so far its pretty much gone, but it still there ever so small it's almost gone completely. Problems with idle speed—things like slow idle, fast idle, rough idle, or stalling after idling for a few seconds—are symptoms that something is wrong with your engine. Defective ignition wires, restricted injectors, or. I did not remove the thottle body from the car. haven't yet checked the condition of the. When we first got it, it was smooth with a higher idle. How to Drive a New Car. My 1998 Outback 2. Rough idle, bad hesitation on acceleration, perfect idle with TPS disconnected (1994 Toyota Previa) Very rough idle with a repetitive cycle that is smooth for a couple of seconds then misses badly, occasionally stalling. seems likely but would damage to this venting pipe cause s. My 200S shudders when sitting still/taking off. Causes of a rough idle. This morning (again temps in the low 50s), rough idle of the same magnitude, backed out and put in drive, same bucking, check engine light this time and the rotten egg small again. Then back in reverse or drive, it is rough. tl;dr - 2000 Buick Park Avenue Ultra, 120,000 miles. It frequently stalls when shifting from park to drive. The car idles roughly at startup, but then runs smoothly after a few blocks. only trouble. Repairing engine problems can mean a significant expense, so it's best to have a rough-idling car checked out by a qualified mechanic as soon as you notice the car idling rough. Toyota Camry 2007-2011: Why is My Car Idling Rough? Why is My Car Idling Rough? Is your Camry running rough at idle and causing the engine to vibrate like it's had one too many cappuccinos? There are some simple solutions that'll cost you less than a Starbucks mocha. hi, have a problem today. Drivers of direct-injected gasoline engines have been complaining about a rough idle and a check engine light that has been illuminating on the dash. Bad Engine Mount (Idle, Accelerating and Driving) - The engine mount is what connects the vehicle's engine to the rest of the body of the car. 4L) vibrates in idle only when in gear (stop light). looking for a rough idle without major engine mods 509s idle pretty rough, but i hear they can be a turkey without decent compression, gearing etc. It didn't start until they replaced the tires and. Well, when you put the car in drive (vs N) that puts a slight load on the engine which usually also makes the idle drop. AC Delco sparks and wires, K&M filter was JUST put on, rear O2 sensor was just replaced and all of that was after the rough idle started and none of it helped get rid of the rough idle. is an adaptive computer that picks up on how the owner drives the car in the first 100 miles (161. I hopped into her about 30 minutes ago to run to the pharmacy and noticed while sitting at a light waiting to turn that she was idling pretty rough. As your car rolls along, the engine takes in a mix of air and fuel that allows it to keep moving. Components in the fuel, ignition, emission and other systems should work correctly. Most of these conditions can make the vehicle dangerous to drive. Dirty Fuel Injector Modern vehicles are fitted with fuel injection systems, which inject fuel into the cylinders to create a mix of air and fuel to burn. A common cause of an engine running rough is faulty ignition timing. We had a rough idle about 2 years ago and all it was, was spark plugs and wires. Shut the car off and put + battery voltage to the blk/yel terminal (on the valve) and momentarily touch ground to the blu/yel side. Idle is only rough when cold. After about 30 seconds when i put the car in drive and drive away the rough idle disappears completely. It still idled a lil rough but not as nearly bad as it has. Engine cold, Premium Fuel only. One reason for a rough idle is it could be time to clean out the fuel injectors or it could be time to change out the spark plugs. EDIT: today the car was still idling rough, it was jumping around between 1k and 500 RPMs when in drive, so I went ahead and cleaned the IAC like you said with throttle body cleaner, so far its pretty much gone, but it still there ever so small it's almost gone completely. The steering wheel shakes and I can feel i in the seat. Hi, I just had a lot of work done on my '88 XJ-S V12 convertible with 39,500 original miles. 4i Lite bad acceleration and rough idling. So, your car, truck, or van is idling rough… what is the cause? And what can you do to fix it? Even if you aren't the savviest person when it comes to vehicles, you should know how to identify rough idling. 6 for the last 5 months and it has been really irritating with the roughness (light constant shaking during idling) coming into the passenger cabin. dont drive till the temp gauge gets above the min. Now when I shut it off and have it sit for more than 5 min and re-start it, thats when it will stutter and shake and when i give it gas, it bogs alot and stutters almost likes its gonna die. I had the car taken in on-schedule for an A service a month ago and it left the ship with a clean bill of health. x and everywhere in between which is most likely the cause of the rough idle. It does not stall, but idles from 500-2,000RPM. While the engine is running [at idle if possible] I used a slow stream of water directed over each of the hoses until the leaky one was found. Rough Idle when in Drive,Idle is smooth when in Neutral and Park. Mass Air Flow (MAF) sensor is the cause of rough Idle/Acceleration 80% to 90% of the time. Basically run it hard through first and second gear hard (keep it in drive) and watch the black smoke fly out the exhaust. If I shifted the truck into drive (D) and didn't move the car forward it stayed smooth! Odd. Rough Idle in Drive and Reverse but not Park / Neutral I have begun to notice that my car shudders / idles really rough in reverse and drive (progressively gets. After reassembling everything the car now idles rough, stalls when coming to a stop. As it turns out, the rough idle, P0172 code & clattering seem related to the failed timing belt tensioner (and consequent stretched timing belt). When I say idle I mean come to a stop , I'm still in drive but stopped. Eventually, as the crack got worse, it started throwing mixture codes which forced me to pull the head and I confirmed my theory of a damaged valve. The car has 130,000 miles and has had the head gaskets replaced at 100,000 miles. DIAGNOSE - ENGINE MISSES OR IDLES POORLY. Hi there, I'm hoping someone can help with the issues my car is having. cant afford repair shops. When I drive the truck the engine light will go on and off. EDIT: today the car was still idling rough, it was jumping around between 1k and 500 RPMs when in drive, so I went ahead and cleaned the IAC like you said with throttle body cleaner, so far its pretty much gone, but it still there ever so small it's almost gone completely. P15 idles smooth but runs rough. I have a 2005 A4 Avant, 2. How to fix and repair a car engine that idles poorly, rough, or low. Took it for a drive about 30 minutes each way run perfectly. Check out Real Tech's recent reply under "check eng,restricted performance" on the leaking cam covers issue. For example, if the idle drops an unacceptable amount when you turn the air conditioning on, you can use the closed loop control to compensate. I have the p1518 code on my 98 Mark VIII and here are the exact symptoms. not bad in neutral. 62, so made the adjustment per the FSM to. Toyota Camry 2007-2011: Why is My Car Idling Rough? Why is My Car Idling Rough? Is your Camry running rough at idle and causing the engine to vibrate like it's had one too many cappuccinos? There are some simple solutions that'll cost you less than a Starbucks mocha. It has a terrible rough idle in and out of gear. This Site Might Help You. I saw this thread over in the Gen1 topics but didn't see anything for Gen2 (so forgive me in advance if this is a duplication). While a rough idling engine may seem to be a simple inconvenience it often indicates a deeper problem within the engine. Great car and barebones. A bad hose in any part of the engine is easy to fix. Car check engine light came on. Under WOT the car will be pulling smooth up until about 4-5k then it starts to break apart. Started to have rough idle problem when in drive. I checked all wires and plugs and everything is sparking though. 0? Mine has a rough idle too, but haven't got it tuned up or cleaned anything (plan to when I can afford to get it done, not car smart enough to do it myself) but it's not really that bad, it's noticeable but hasn't ever died or anything. it will continue to idle very rough/ erattic until I drive the car for 5-10 mins. Pulled over, turned the car off for a couple of minutes, started it back up and it ran smoothly the rest of the day with no odor. It’s likely you’ve experienced a rough idling vehicle – which just means the car feels rough and bouncy when the engine is running. I think its on the lower end of the top part of my intake, but I'm unsure. It almost quits running. it did not set a Lean code condition but a P0300. 3L 103,000 Missing when accelerating after stop. As soon as its put into gear, it sputters and dies immediately. I drive car & a few mins later it idles smooth again. And I guarantee that most of you are having the same symptoms as me. However, the complaint from the driver was a lack of power. I've tried holding the rev's up and pumping the gas when its about to turn off but that hasn't helped. Can you please give me some ideas to help me solve my idle problem. They said there were no codes. You can hear the misfiring in the exhaust. What causes a rough idle? A rough idle can be caused by many different car faults. Now the idle is so smooth I cant even tell if the car is on anymore. As asked previously, what are the rpms in N and what are they in D?. And pulls strong beyond 7500 rpm. org So my car idles like absolute crap and the revs go up and down while in park but it drives fine when going 30 MPH. I reinstalled everything and the car still idles rough (1. Very rough idle in drive but not really in park. It can be so bad it can stall the car or cause the revs to hang at a bad moment for that. Rally Sports Car takes off! Rally Sports Car drives around the track and slides into a turn. My 1998 Outback 2. The steering wheel shakes and I can feel i in the seat. 2001 ls v8 is shutting down the right bank coils at idle, why? engine idles rough but drives smooth - Answered by a verified Auto Mechanic. A general loss of power in the car. 4 engine and auto tranny. I could put it in neutral and it would get better once I put it back in drive it idled rough again as well as rough idle in park. If the gaskets are leaking, the idle will smooth out or change when spraying the WD40. Otherwise, the car sounds and runs smooth. Such was the case when I was recently called to diagnose a rough idle complaint on a 2003 Chrysler Town & Country van with about 170,000 miles on the odometer. Porsche 997: Why Does My Car Have a Rough Idle? While many owners report the 997 may ride a little rough, don't assume everything is normal. My 2003 325i has a lot of the same issues described in the thread, rough idle, maybe low idle and intermittent idle RPM hiccups where it dips very low under 500 RPMs. Back in December 2015, I got a used 13 JKUR. When my missus took it for a test drive she drove it out of the dealership and got out on the road, pulled up at the first set of lights and whilst in Drive with foot on the brake the idle went very rough to the point it would almost stall. Put the C4 automatic in drive while at a stand still and the smooth idle turns rough. When we first got it, it was smooth with a higher idle. Car idles rough in drive but when in neutral it idles The difference between the rough and smooth ER is that the rough ER has ribosomes studded throughout the structure while the smooth ER. It does not stall, but idles from 500-2,000RPM. Rough idling. Note: An additive can sometimes, however, cause a rough idle problem. VS Ecotec rough idle Discussion in 'VR It drives beautifully and really smooth, but when coming to a stop it starts to misbehave. But rental car fees again ($250). Thanks Steve, for that draft of the dissertation on how to fix idle/stumble. 1989 mercedes 190e 2. Before it would stumble between 500 to 700 RPM’s and idle rough. Was fine one day ,next day could not even drive it. If I were to put it in neutral it idles fine. My car shakes a lot when idling, runs very rough and using too much fuel. We've been noticing for a while now that when idling right after coming to a stop, say at a light, the motor often goes into a pretty low and noticeably rough idle at around 500RPM. This will probably be my last post on this thread. They didn’t seem concerned with the engine idling problem. Then the other day I started it up and it started idling very rough(my whole car was shaking). When I first turn the car on everything seems fine but when it warms up and ive been driving for like 5min. I have done an oil change, checked motor mounts and trans mount (they seem to be ok). Multiple times to the dealer, one TSB done with no success.