Hyundai elantra shaking at idle

I purchased my brand new 2020 Hyundai Elantra last September. In fact, it is an import, all parts were made and assembled in South Korea. I must say the car is amazing: transmission is good, the 2.0 engine packs a punch and it's super maneuverable. After my first service at ~4800 miles, my brake system started to feel strange.

When your 2017 Hyundai Elantra's ECM (electronic control module), which is the vehicle's onboard computer, finds a problem in the electronic control system that it can't humane, a computer turns on your check engine light. This amber or yellow light is naturally labeled "check engine" or "service engine soon", or the light may be ...Feb 26, 2015 ... Hi Everyone: This 2001 Hyundai Santa Fe with a 2.4L engine has a rough idle and hesitation. The code is PO171, system lean, freeze frame ...Your 2017 Elantra's ignition depends on this order for best performance. If the cylinders light up in the wrong order, you might notice your engine sputtering, shaking while idling, and it could even get damaged. Knowing this firing order helps you figure out and fix ignition issues, keeping your Elantra running well for a long time.The idle on the Elantra is set at around 600 rpm with the car warmed up, in drive mode and stop like at a red light. I ask the dealer if they can push it up by 100 rpm …Exterior color: Silver · Interior color: Seller's Description. Salvador, BA. Location is approximate. Log in for Details. Garden & Outdoor. See allOn average, the cost for a Hyundai Elantra GT Car is shaking or vibrating Inspection is $95 with $0 for parts and $95 for labor. Prices may vary depending on your location. Car Service ... As mounts wear over time, the vibration may be more pronounced at idle while in gear, and may change when the vehicle is placed in neutral or park. Broken ...So here we go I have an 03 Elantra GLS 2.0L (40,000miles) and after sitting over night you need to turn the key off and on 3 times to get it to fire up. Once it starts it runs fine all day no problems even after sitting 8 1/2 hrs till I am done work. This is what I have done to try and fix the problem with no luck, Plugs,wires,fuel pressure ...Rough idle. My 2020 ES has 17k miles on it. Noticed about 1000 miles ago that when my engine is warmed up and I'm at idle the engine almost feels like it is misfiring. Just used CRC intake valve cleaning thinking it might be carbon build up but no difference. Changed the air filter and cleaned the throttle body as well.

Motor mounts or spark plugs could cause this symptom. Could be the idle air control valve! Elantras have been notorious for misfires. Take it to the dealer, there is actually an ECM update for your car, for that exact concern. So my 2016 Elantra is shaking when Idle. The car has 38,000 miles on it.Hey guys, so this elantra with just over 100k km came in to our shop with the complain of engine shaking and stalling on a stop. I checked for codes but we d...I haven't experienced the shake recently, the car has 8K miles now. It may have broken-in, or maybe just a coincidence - time will tell. It's way too intermittent to …Rough idle within 30 seconds of a cold start. ... Hyundai cars from the Sonata to the Elantra and even the new Kona! Show Less . Full Forum Listing. Explore Our Forums. YF (2011-2014) Sonata/i45 MD (2011-2016) Elantra sedan/coupe NF (2006-2010) Sonata CM (2007-2012) Santa Fe MC (2006-2011) Accent.Sudden Rough Idle (When in Gear) New member here, bought a 2019 SF Ultimate 2.0T this summer. Currently has 7300 Kms on it. Driving yesterday (-25°C) my SF started making a slight shudder/ vibration and sounded like the engine was lugging a bit when I came to a stop. Putting it in neutral it smoothed out and sounded normal, but I now have this ...Sep 4, 2021 · Ok the most common issue is the mass air flow sensor has failed, This adjusts the air fuel ratio and when these fail it will cause your issues. It can also be excessive carbon build up as well as needing a simple tune up. This is what needs to be done to properly diagnose and fix this issue .

2013 Elantra GT 1.8 from cold start would rev to 2000 rpm and within 20-30 seconds slow to 1400. Once warmed would idle very smooth at 700 rpm. 2016 Elantra sedan 1.8 from cold would rev to 1600 rpm and quickly slow to 1100. Then idle very smooth at 700 rpm. Neither vehicle ever had a rough idle.i have a 2016 hyundai elantra at 96k miles. it's a long story so TLDR is right after this paragraph. i've brought this car to a mechanic 3 times totaling $600 and none of the repairs have fixed the problem. any help, suggestions, advice or seriously anything would be greatly appreciatedMotor mounts or spark plugs could cause this symptom. Could be the idle air control valve! Elantras have been notorious for misfires. Take it to the dealer, there is actually an ECM update for your car, for that exact concern. So my 2016 Elantra is shaking when Idle. The car has 38,000 miles on it.Elantra. 2017. As the owner of a 2017 Hyundai Elantra, you may have found that your vehicle is idling roughly. This can have a couple of causes, many of which have been reported for this Make and model. First, you may be experiencing a leak in the vacuum hoses. If this is the case, you will pay between $12 and $19 on average for a new hose.Elantra Club is a community of Hyundai Elantra enthusiasts and owners. We cover everything from maintenance and performance to detailing and customizing. ... AC will add alot of vibration as it adds load to the engine. This is even more true if you have a solid engine mount, or even a really worn one. ... Engine Load At Idle Question. …

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About two - three weeks ago I noticed my Elantra would emit a light vibration / shake when stopped, but still in drive. About 5 days ago, when I started my car, it sputtered and shook, then stalled. I restarted it and it sputtered and shook and I turned it off. I restarted it and it had a rough idle for about 2-3 seconds, then it smoothed out ...The Elantra is known for random bouts of shaking due to its "smart" alternator which puts a sudden load on the engine when the battery needs charging. Switching on the A/C during one of these charging cycles tends to make the shaking worse, due to the added load it places on the engine in addition to the alternator.The Elantra has recently developed a problem. It has begun to intermittently vibrate at idle and lower speeds and is now throwing CEL P0303 (cylinder 3 misfire). I put in new spark plugs and wires (the plug in cylinder 3 did look excessively worn out compared to the other plugs....all the plugs were less than 18 months old) and the code ...Last year my 2005 Elantra 5-door (2.0L SULEV, AT, 97K miles) was vibrating all the time, both at a stop and at all RPMs and speeds. It became severe enough that it was making a clattering sound. The vibrations worked loose the "grommits" that hold the plastic shroud that divides the engine...Rough idle at 2000rpm. I notice while in park if I raise rpm to roughly 2000rpm, I feel shaking. If I go over or below, everything smooths out. I hooked up my scantool and looked at misfire data and noticed it was only on cylinder #3. From there, I swapped the coil from cyl #1 and #2 with the one in #3 and the misfire still showed on cylinder #3.#2 · Oct 14, 2011. Are you using eco mode when this occurs? AC units take quite a bit of power to operate which is more noticeable with smaller engines at idle. The salesman told me by using eco mode at times of idle, such as traffic lights. The eco mode will actually cut power to the AC unit to keep the car running smoother at idle.

They say rules are made to be broken, but you have to understand the rules before you can break them effectively. Cocktailing has a lot of rules, and a lot of rule breakers, but St...Motor mounts or spark plugs could cause this symptom. Could be the idle air control valve! Elantras have been notorious for misfires. Take it to the dealer, there is actually an ECM update for your car, for that exact concern. So my 2016 Elantra is shaking when Idle. The car has 38,000 miles on it.The first step to solve chatter or jitter is to inspect all of the components for damage. Have the flywheel checked for warp, and resurface or replace it if needed. If oil or grease is present, find the source and fix the leak. If a clutch disc has been covered in oil, it should be replaced. Make sure that all of the components are clean before ...p0303- cyl 3 misfire. another code cant remember about bank 1 being too lean and a few others. car would idle rough, spit and sputter. after swapping coils, fuel injectors, cleaning MAF and TB, changing spark plugs and wires, nothing was working. with car running unplugged each injector to test, cyl 3 had no change. removed fuel rail to …Some of the most common causes include misfiring cylinders, bad motor mounts, and engine damage. Key Takeaways. Misfiring is the number one reason why a …Other Symptoms: Poor engine performance when cold or as it reaches operating temperature, hard starting, poor acceleration, rich fuel mixture at idle and stalling. 11. Fuel Pump. Although you won't see this often, an engine rough idle can be a sign of problems with the fuel pump or fuel pressure regulator.the engine light is on and the vehicle has been shaking, I believe it may be the spark plugs, however I had them replaced around 3 years ago … read more. It's shaking. 2017 Hyundai Elantra Se. 76700. I was told. i was told that it was the coils so I had those replaced and that didn't solve the issue … read more.Engine is shaking, pulsating or vibrating Inspection. Estimate. $99.99. Shop/Dealer Price. $110.24 - $117.94. Show example Hyundai Elantra Engine is shaking, pulsating or vibrating Inspection prices. Any unusual shaking or vibrating forces coming from the engine is cause for concern.The 2013 Hyundai Elantra has 17 problems reported for runs roughly, shaking and vibrating. Average failure mileage is 43,200 miles.Elantra. 2017. As the owner of a 2017 Hyundai Elantra, you may have found that your vehicle is idling roughly. This can have a couple of causes, many of which have been reported for this Make and model. First, you may be experiencing a leak in the vacuum hoses. If this is the case, you will pay between $12 and $19 on average for a new hose.Loose or Disconnected Hoses. Loose or disconnected hoses can also be a common cause of many types of engine vibration. A loose or disconnected air hose or vacuum hose can cause quite a bit of violent shaking and vibration in your 2014 Hyundai Elantra sedan's engine. To correct the problem, simply look for any loose or disconnected hoses and ...

Sometimes, idling problems that cause engine vibration may be as simple as adjusting the idle on a carburetor or cleaning components in the fuel intake system so that fuel passes through the engine more easily creating cleaner and more efficient combustion your 2017 Hyundai Elantra sport's engine.

I purchased my brand new 2020 Hyundai Elantra last September. In fact, it is an import, all parts were made and assembled in South Korea. I must say the car is amazing: transmission is good, the 2.0 engine packs a punch and it's super maneuverable. After my first service at ~4800 miles, my brake system started to feel strange.Elantra 2014 vibrates when stop or idle. Jump to Latest Follow 658 views 1 reply 2 participants last post by Dog Patch Steve Jun 28, 20232013 elantra rough idle issue - possible solution. I might have resolved my rough idle situation that had been tormenting me for the last 6 weeks. Basically my car …Idle to low. I have an elantra 2009 Se, my car goes down to 600 rpms and shakes when I stop. It has 186.000 miles. I replaced the battery, I already replace the IAC, spark plugs, spartk plug cable, New alternator, new belts, new timing chain along with the water pump, I replaced the maf, I replace engine oil every 4 months, I replace the purge ...2001 HYUNDAI ELANTRA. 4 CYL. 2WD. MANUAL. 180,000 MILES. I have within the past week found that my hyundai started to idle really high when I would start the car and every time I would pull in the clutch. The check engine light came on so I took it to an auto parts store and and recieved a code "P0507". Now it said it had something to do with ...RPM Drop While Idling. RPM drop can happen as you sit in your idling car in the driveway or at a red signal. It can be accompanied by shaking and rumbling sounds or bouncing. The average idle speed in most cars is 600 to 1000 RPMs. If your RPM drops below 600, then it means that the RPM is fluctuating, and sometimes the car even stalls out.The issue is random rough idle. Idle speed drops to approx 500 rpm and gets very rough. ... While driving on 5 Freeway in California my 2014 Hyundai Elantra started to violently shake like someone ...2002 Hyundai Elantra: Sold 1991 Nissan 240sx Hatch SR Swapped: Sold 1992 Toyota MR2: Sold 1991 Nissan 240sx Coupe: Future KA-T 1999 Hyundai Tiburon: Daily Driver. Save Share. Like. Munky. ... Rough idle along with a chugging at low RPM. Changed the wires, worked perectly. Save Share. Like.

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Hyundai Accent 1.4 2012, Manual Transmission 5 Speed, ODO 126000 KM (Saudi Arabia) My car recently started shaking a little on idle, when AC is on in every 20-25 seconds, RPM around 700. when car is running there is absolutely no issue at all, even if i push throttle (in neutral position) a little and manage to increase RPM to around 950-1000 ...Sometimes, idling problems that cause engine vibration may be as simple as adjusting the idle on a carburetor or cleaning components in the fuel intake system so that fuel passes through the engine more easily creating cleaner and more efficient combustion your 2022 Hyundai Elantra 's engine.I have been experiencing some shaking/roughness while driving my 2017 Elantra. It's intermittent, yet noticeable when it occurs. It has happened at different speeds, including when I'm idle or parked. The intermittent shaking started about three weeks ago and just last night the engine light finally came on.2014 Hyundai Elantra shakes while idle and struggles to accelerate. Car has 27,400 miles on it. Had oil changed, tires replaced, and battery replaced all within the last week. Now my car tends to shake while idle, and is struggling to accelerate, especially on the highway while trying to hit speeds higher than 55 mph.the engine light is on and the vehicle has been shaking, I believe it may be the spark plugs, however I had them replaced around 3 years ago … read more. It's shaking. 2017 Hyundai Elantra Se. 76700. I was told. i was told that it was the coils so I had those replaced and that didn't solve the issue … read more.The hyundai elantra engine is a popular car engine for its high performance and durability. It is a 4-cylinder engine with a displacement of 2. 0 liters. The engine is made from aluminum and has a dual overhead camshaft that operates the valves. The hyundai elantra engine also features variable valve timing which enhances its fuel efficiency.The engine will stall at idle after throughly warming up. It sputters for 1-4seconds and then stalls, not immediately but after 4-5 minutes. You can immediately restart and it will again idle normally for a less time-2-4 minutes and stall again. On start up, the engine is noisy for a couple of seconds and quiets down.The most common causes for Hyundai Elantra shaking at high speeds are unbalanced wheels, misaligned wheels, tire damage, bent rim, bad wheel bearing and loose lug nuts. Less common causes are bad axle, worn suspension or steering parts or incorrect tire pressure. 1. Unbalanced wheels. The leading cause of vibration in Hyundai Elantra when ...Hyundai Models. Santa Fe Forums. SM (2001-2006) Santa Fe. Engine shakes car when idle , engine turns off when AC is turned on. Jump to Latest Follow 3K views 3 ... ….

109 posts · Joined 2008. #1 · May 24, 2008. Hey, I fixed my High Idle today, I was doing some other work on the car and as I've been reading a lot around here, I've been seeing other Idles being around 750 -1000. Mine has been at around 1500, always bothered me. So I finally decided to look into it and found that the little pin that holds the ...ELANTRA steering wheel pulls back and forth. 2002 Elantra steering vibration. Steering wheel vibration Hyundai tucson. Wobble in car. 2004 Sonata with excess vibration in steering wheel. Elantra 2000 steering vibration. Shaking steering wheel on 1999 Elantra. 2002 Elantra with 180,000 km highway driving... Here's the problem but my dealer and ...Sometimes, idling problems that cause engine vibration may be as simple as adjusting the idle on a carburetor or cleaning components in the fuel intake system so that fuel passes through the engine more easily creating cleaner and more efficient combustion your 2022 Hyundai Elantra 's engine.Hyundai Accent 1.4 2012, Manual Transmission 5 Speed, ODO 126000 KM (Saudi Arabia) My car recently started shaking a little on idle, when AC is on in every 20-25 seconds, RPM around 700. when car is running there is absolutely no issue at all, even if i push throttle (in neutral position) a little and manage to increase RPM to around 950-1000 ...Spray a throttle body cleaner on a clean cloth. Use the cloth to clean the throttle body carefully. If a dirty throttle body was the cause, then you will have fixed the issue. In some cases, this problem would be due to a faulty AC compressor. In this case, you will be required to change and replace the AC compressor.I am having more than usual vibration when the car is in-gear-at-idle. 2004 Hyundai Elantra GT. Not trying to fix it - Answered by a verified Hyundai Mechanic ... and fully warmed up with idle RPM around 690. When the car is in neutral (and at idle) the vibration is much lower. Also, when the car is moving, there is no vibration. Hello all! My 2017 Hyundai Elantra has recently been having some issues! When driving, the whole engine will start shaking, causing the whole car to shake. While this happens, my car doesn’t want to accelerate. Here’s the video I got. I tried to get everything in there the best I could. ProX. 93 posts · Joined 2010. #3 · Apr 23, 2010. A quick check would be to turn the A/C on and then check to see that the cooling fan is on. If it is, then you could have a faulty temp sensor (not sending unit) or maybe a bad relay if it has separate ones for cooling and A/C. If not, it could be that the fan is bad or your fuse is toast.The most common reasons a Hyundai Elantra has rough idle are a vacuum leak, an issue with the spark plugs, or a problem with the ignition coil. 0 %. 34 % of the time it's the. Vacuum Leak. 0 %. 21 % of the time it's the. Spark Plugs.A guess is only just as good as the next persons guess. But until the mechanic can mimic the problem it’s going to be hard to tell. 1. Stockspyder • 3 yr. ago. You need to drive and start the vehicle with the stored DTC codes intact. Drive around until the check engine light triggers and then head in to the shop thats equipped with a scanner. Hyundai elantra shaking at idle, Every Elantra I've heard is that way after the engine is broken in. Make sure your using Hyundai oil filters they have an anti drain back valve in them to help keep oil in the top of the engine. My engine has a noticeable tick when cold but it goes away after it warms up. Sent from my iPhone using Tapatalk. Like. C., Feb 14, 2010 · p0303- cyl 3 misfire. another code cant remember about bank 1 being too lean and a few others. car would idle rough, spit and sputter. after swapping coils, fuel injectors, cleaning MAF and TB, changing spark plugs and wires, nothing was working. with car running unplugged each injector to test, cyl 3 had no change. removed fuel rail to check ... , Find the most common driver-reported problems that are to blame when a 2012 Hyundai Elantra shakes when braking. See More 2012 Hyundai Elantra Problems Loose/Worn Suspension/Steering Components May Cause Wobble in Steering Wheel, Remove your spark plugs and see if the ends look corroded or damaged. Usually the misfire code will point to a specific cylinder, so you can move plugs to see if the misfire moves when plugs are moved. If the misfire doesn't move, replace the ignition coil of the misfiring cylinder. 1. Reply., A guess is only just as good as the next persons guess. But until the mechanic can mimic the problem it's going to be hard to tell. 1. Stockspyder • 3 yr. ago. You need to drive and start the vehicle with the stored DTC codes intact. Drive around until the check engine light triggers and then head in to the shop thats equipped with a scanner., I just purchased a 2017 Elantra and I felt a vibration at higher speeds and thought tires needed a wheel balance. Took it to the tire center and I learned I had 2 bent rims. ... Hyundai cars from the Sonata to the Elantra and even the new Kona! Show Less . Full Forum Listing., Veículo disponível (Único dono) Não possuí sinistro Sem passagem por leilão Rec. ADMINISTRADORA PARCELAMOS = entrada+parcela DISPENSO..., I bought my 2020 Kona last January. In October, after about 7,000 miles of driving, I noticed that the engines shakes at low idle. Like others above, switching to Sport Mode seemed to help. A few months later I noticed that the engine now rumbles when I am traveling at about 35 MPH going up an incline., My 2011 Elantra is shaking rough occasionally while idling with the a/c on - Answered by a verified Hyundai Mechanic We use cookies to give you the best possible experience on our website. By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them., Hey guys, so this elantra with just over 100k km came in to our shop with the complain of engine shaking and stalling on a stop. I checked for codes but we d..., I have been experiencing some shaking/roughness while driving my 2017 Elantra. It's intermittent, yet noticeable when it occurs. It has happened at different speeds, including when I'm idle or parked. The intermittent shaking started about three weeks ago and just last night the engine light finally came on., Car running rough and occasionally stalls when I stop. 2017 hyundai elantra. Not fixing myself, replaced coil pack - Answered by a verified Hyundai Mechanic ... It's shaking. 2017 Hyundai Elantra Se. 76700. I was told ... I have a 2003 Hyundai Elantra, 5 speed. The car is stalling at idle. Check engine light is on. I've noticed that the rpms ..., 948 posts · Joined 2011. #3 · Aug 17, 2011. The 2.4 does have noticeable vibration when idling if you look under the hood. However the engine mounts are designed to isolate the vibration from the car so very little gets into the passenger compartment. If you look at the upper mount you'll see it is very large and has a damping weight., Ignition: If it is your ignition that is producing your Hyundai Elantra’s idle vibrations, you will have to pass the vehicle through the diagnostic kit to get more information on the exact problem. And consider a replacement of defective parts, or an ECU adjustment. Motor Silent Blocks: The last trigger of vibration at standstill on your ..., Sep 29, 2018 ... In this video I am going to cover in all the reasons and symptoms your car may be shaking or vibrating. Whether you feel vibration at idle, ..., So my 2016 Elantra is shaking when Idle. The car has 38,000 miles on it. The check engine light isn’t on or anything. So when the car is in park it’s a vibration that goes from …, Engine light and shaking / vibration happened for months. Drove normally 80% of the time and did what’s shown in the video the other 20%. Took it to Hyundai ..., Over the past few months my 2017 Elantra has started to stall occasionally while driving. It has 70k miles on it. The stalling has increased from around a few times a week to a few times a day.. It mostly stalls when I am decelerating at low speeds. Its stalled out a few times around 45 mph. It also takes longer to start that it used to., Loose or Disconnected Hoses. Loose or disconnected hoses can also be a common cause of many types of engine vibration. A loose or disconnected air hose or vacuum hose can cause quite a bit of violent shaking and vibration in your 2018 Hyundai Elantra sport's engine. To correct the problem, simply look for any loose or disconnected hoses and ... , When your car idles, the engine and alternator run slowly. The alternator provides enough electricity to charge the battery. If you use high-powered accessories, the idling alterna..., 3) Vacuum Leak. There are a lot of hoses that help deliver both fuel and air to the internal combustion chamber. One very common cause of idling rough is a problem with a vacuum hose in the vehicle. The hose could be damaged, loose, or worn out, creating a leak. This could result in an abundance of air mixing with the gasoline, which would ..., #1 · Aug 14, 2020. 2017 Hyundai Elantra is displaying check engine light when accelerator /brake pedal is used, no light on when cruising on constant speed / declaration and engine shudders at idle ( traffic stops etc., ) . This happens occasionally and when i shut off the engine at a safe place and turn back on , the car drive normally., I haven't experienced the shake recently, the car has 8K miles now. It may have broken-in, or maybe just a coincidence - time will tell. It's way too intermittent to take her for service. I also experience some "chugging" of the tachometer in idle, but no perceivable engine roughness or hesitation. Other people have the idle rpm chugging too., This has been happening for a couple weeks now. It's worse when the AC/Heat is on. It acts as though it's losing power or not getting fuel a second and sputters/jerks without stalling. I tried having codes read by a dealer, but with no check engine light coming on there's nothing. Oil gets changed every 6k miles with full synthetic (manual says ..., Rough Idle (Possible cause?) 10. Asked by mjr1397 Jul 21, 2020 at 02:15 AM about the 2014 Hyundai Elantra SE FWD. Question type: Maintenance & Repair. So, when I bought my car a year ago (used) it had a misfire. in cylinder 1. Got that fixed with new spark plugs. A few. months of having the car and the fuel pump went out., F. flyingvee Discussion starter. 3 posts · Joined 2022. #1 · Mar 21, 2022. Hi, My 2009 model is running rough at idle, no check engine light. Is it still wise to check codes (need to borrow a code reader if so). I am not one to do my own repairs, but have been looking at the throttle body cleaning method as a possibility to help this?, TOP 5 REASONS WHY HYUNDAI SONATA HAS ROUGH IDLE, ENGINE REVVING UPIf you have Hyundai Sonata and you have rough idle or the engine is revving up or what coul..., Rough Idle when Warm, 1999 Elantra. NEED HELP. [J1/J2] Jump to Latest Follow, Vehicle: 2012 Hyundai Elantra, L4-1.8L, Automatic Transaxle Mileage: 118,998 Problem: The customer's concern was that engine would not idle after it had warmed up. The malfunction indication light was OFF. If the engine speed was held over 800-850 rpm, the engine would stay running. Details: The tech replaced the throttle body, performed the throttle body relearn procedure and replaced the ..., 2013 Hyundai Elantra GT runs rough on idle, jolts and studders. Tags battery electrical issue idles rough studders terminal. Jump to Latest Follow ... My car seems to run rough on idle, (in drive but not going anywhere). It seems like the car is vibrating more than it should. Sometimes it will even jolt or studder like it's trying to go forward ..., Shakes When Idle But Smooths Out When Accelerating. The reason your Hyundai Equus shakes at idle but smooths out when accelerating is that the engine is spinning faster, which smooths out any misfires. If a motor mount is causing the problem, once you put the car into gear, the torque from the engine will hold it against the frame. It can be ..., Rough idle. My 2020 ES has 17k miles on it. Noticed about 1000 miles ago that when my engine is warmed up and I'm at idle the engine almost feels like it is misfiring. Just used CRC intake valve cleaning thinking it might be carbon build up but no difference. Changed the air filter and cleaned the throttle body as well., New and used Hyundai Elantra for sale in Salvador, Bahia, Brazil on Facebook Marketplace. Find great deals and sell your items for free.