Hyundai elantra shaking at idle

2017 Hyunda Elantra Limited, Mineral Beige, purchased Sept, 2017. Like. F. fredsmythson. 37 posts · Joined 2013. #4 · May 2, 2021. I had a similar problem with my 2017 Elantra. I took it to the dealer since the power train was still under warranty. They said the engine had the "old style" coil packs.

Hyundai elantra shaking 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. By not using eco mode the car isnt generating enough power to keep the AC running and a smooth idle.

2016 Hyundai Elantra vibrating/shaking while 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 faint to moderate. It also vibrates when stopped at a red light or stop sign.

That's why in this article, we'll be discussing a common issue in modern cars, specifically the engine shaking or trembling when an Hyundai Elantra is at idle. This is a topic not often covered, so we thought it would be useful to explore it and provide you with an idea of what might be causing your Hyundai Elantra's engine to shake when it's ...1. Pull the intake hose off below the MAF and block it with the engine running. If the engine doesn't die you have a vacuum leak somewhere between there and the cylinder head. If it does die, it's more than likely your IAC or improperly adjusted/stuck throttle body. 2.2022 Hyundai Elantra. The most common reasons a 2022 Hyundai Elantra ac isn't working are a refrigerant leak, an electrical climate control issue, or a problem with the air conditioning compressor. 0 %. 37 % of the time it's the. AC Refrigerant Leak.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.Low rpm at idle in Hyundai and Kia GDI engines is made to save a little bit emissionsYou're in luck that you at least have a check engine light on, so if it gets scanned it will tell you a code for what to look for. It can be one or many of a few things; Poor quality fuel, bad injectors, bad spark plugs, bad fuel pump, or a vacuum leak. 3. Reply. MrCommentor69 • 2 yr. ago. Same happend to my car, did u fill up recently. 2 ...

The entire ride felt very choppy. Later in the day, the RPMs were fluctuating between 2.5 and 5.5, the car was seriously jerking and shaking at a speed of about 40 MPH. The only time the RPMS didn't fluctuate with this severity, was when the car was at a complete stop, or the MPH were below 20. Now, today, Tuesday, June 21, 2022 the car was ...Hyundai's seat belt problems keep increasing. On March 3, 2022, they issued a recall for 140 2022 Elantra and Elantra HEV sedans. The problem, they explain, is that if the vehicle is in a crash, "the front passenger-side seat belt pretensioner may explode upon deployment.". And, an exploding seat belt pretensioner "can project metal ...When a Spark Plug is misfiring, it is often most pronounced at idle speed. This is because when the engine turns slower, it is easier to detect. You'll feel a rough vibration. Conclusion: Bad Coil Packs Hyundai Elantra. Be aware that almost all symptoms of a bad coil pack in your Elantra could also be other issues with the ignition system as ...2013 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 …Asked by GuruSH2HY Feb 18, 2021 at 04:05 PM about the 2016 Hyundai Elantra. Question type: Maintenance & Repair. my 2016 hyundia elantra is having an issue with the oil light flickering after idling , ... It is hydraulic and can leak severely enough at idle to cause the light to flicker. Noticing the clicking noise and light illuminating at the ...

On average, the cost for a Hyundai Elantra 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. ...Hyundai Models. Elantra & Lantra Forums ... 92 Elantra Rough Idle. 2521 Views 2 Replies 2 Participants Last post by mbred0609, Jun 5, 2006. M. mbred0609 Discussion Starter · Jun 3, 2006. Add to quote; Share Only show this user. hello everyone first time here how yall doin? ... put the car in gear and it all but stalls with motor shaking alot. ...2017 Hyundai Elantra shaking when idle... Bought it as a certified pre-owned with 45,000 miles on it in June. Just last week, when getting off the freeway at a light the car shakes a bit, like it's about to turn off but hasn't, yet. No idication lights on. It's done it a few times.Interestingly, I opened the hood of my '13 GT yesterday while it was in Park and running and noticed that the engine has an ongoing shake at idle (not severe) but that it is bolted to something on the left (facing car) which seems to act as a sort of shock absorber as the engine shake is barely if at all noticeable in the car.OP, you can run your vin and see if yours is on there. Definitely do it. I just had to take my 2016 Sonata in due to the recall a month ago. Both show up with 0 recalls. Reach out to Hyundai themselves, not a dealership. Despite it not popping up on the recall you may be able to have it fixed all the same.

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2.1 Identification of specific power steering issues faced by Hyundai Elantra owners. 2.2 Examples of common symptoms indicating power steering problems. 2.3 Overview of potential causes behind these specific issues. 3 Loss of Electric Power Steering Assist and Disabled Assist. 4 Power Steering Light On and Failure.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.shaking gets worse after the car has been running, usually after 5-10 minutes when the car has warmed up. It only really shakes when idle (at lights or stop signs), though I think I can feel it slightly when driving. Shifting from anything in gear to parked makes the shaking stop, or at least become a great deal less noticable.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 2015 Hyundai Elantra sedan's engine. To correct the problem, simply look for any loose or disconnected hoses and ...Hyundai's seat belt problems keep increasing. On March 3, 2022, they issued a recall for 140 2022 Elantra and Elantra HEV sedans. The problem, they explain, is that if the vehicle is in a crash, "the front passenger-side seat belt pretensioner may explode upon deployment.". And, an exploding seat belt pretensioner "can project metal ...Shopowner. Almost all of the vibrations I've seen at idle are caused by 1. an exhaust that is resonating at a different frequency than the engine causing a visible shake in the middle section of pipe or 2. an engine mount in a bind or touching metal to metal in the mount. Hope this helps.

In a 2017 hyundai elantra, experiencing vibrations in the car is a common symptom of a shaking engine. Additionally, unusual engine sounds and an illuminated check engine light on the dashboard may indicate an issue. It's important to address these symptoms swiftly because prolonged driving with a shaking car can lead to serious damage.NOTE: 1.) do this when the engine is cold -a hot block can ignite fluid. 2.) Use the starter fluid sparingly -too much will not completely evaporate as the engine gets hot. 3.) Be careful around electrical connectors, especially the spark plugs -electrical leakage may cause a spark, setting everything on fire.Engine stalling at low speed and at stop signal. Asked by Robyn_pondering Apr 27, 2020 at 07:02 AM about the 2002 Hyundai Elantra GLS Sedan FWD. Question type: Maintenance & Repair. The car has been driving perfectly and then all of a sudden. I'm sitting in McDonald's drive-thru in drive but with the. brake on so the car just idling at less ...I recently sold a 2013 Hyundai Elantra Limited with only 33,000 miles and the customer called to complain that when engaging the A/C the engine seemed to bog down although it did not do it a second ti ... My Hyundai Elantra 2017 shakes at red light And it won't go past 5000 rpm ... idle is erratic even misfires, ...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 …The most obvious reasons for a vehicle shaking in idle are: The Driveshaft has Failed - If not perfectly balanced or damaged, it might be the source of the vibrations CV joints That Have Failed - Working together with the driveshaft, cv joints get the engine power to the wheels and, if they are failing, can be the cause of the car shaking.Hyundai elantra rough idle diagnosing the rough idle issue in hyundai elantra requires a few tools such as a scanner and a multimeter. Begin by checking for any vacuum leaks or damaged hoses. Next, check the air filter to make sure it’s clean and free from debris. Another troubleshooting procedure is to clean the throttle body with some carb ...In the first case, a turbo failure may also be associated with a compression loss during the engine ramp-up phase, so you should experience a power loss during your acceleration. If the loud noise on your Hyundai Elantra is related to air intake, the control will be done mainly visually, check all your air intake hoses by a visual control in ...I can be sitting at the light and I start to see the rpm's go from 600-700, then drops to 500. The moment it hits 500, I feel the engine shake the cabin and the rpm goes back up to 600-700. The motor was replaced in August due to 'ticking' sound coming from the engine. Hyundai claimed it was 'engine' failure.The problem is when my car is idle and the load increases on the electrical system (i.e. car fan starts, turning on headlights/high-beam, turning rear window defogger... etc.) the dashboard lights dims and the idle drops to ~300 and the car starts to shake, the more I increase the load the more rough it becomes.

Once in a while this vehicle at idling or at slowing down starts to fluctuate rpm and then it vibrates the entire car. No check engine light. For a while, it...

6721 posts · Joined 2011. #4 · Aug 2, 2017. Without hearing the noise, it is hard to speculate. The HP fuel pump on the GDI motors makes a clicking noise, but I don't think the 13 EGT has a GDI engine. It could be valvetrain noise, it could be slop in the timing chain, it could be the timing chain tensioner, although the tensioner normally ...HYUNDAI DASH VIBRATES, ENGINE VIBRATIONS FIX HYUNDAI SONATA ELANTRA ACCENT VELOSTER SANTA FE TUCSONIf you have Hyundai and you have engine vibrations / the d...Hyundai Models. Elantra & Lantra Forums. XD (2001-2006) Elantra. car shakes very badly at idle! Jump to Latest Follow 1K views ...2005 Huyandai Santa Fe chugs when idle and while accelorating. check engine light just came on and car shakes while - Hyundai 2000 Elantra question. Search Fixya. Browse Categories Answer Questions . 2000 Hyundai Elantra; Hyundai Elantra Car and Truck ...The fuel filter in your Hyundai Sonata is there to keep the fuel in the fuel injection system clean, which prevents plugged fuel injectors and plugged fuel pressure regulators. Som...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 ...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 ...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 ...

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Mar 25, 2019 ... How To Clean Electronic Throttle Body | Hyundai Elantra | Santa Fe | Sonata | Tucson | Genesis Coupe ... Diagnose and Fix Rough Car Idle - Main ...If the check engine light is illuminated, then having a professional mobile mechanic complete a car idle is rough inspection would be the best way to determine what caused the warning light and likely is the source of your shaking issue. Hyundai. 2013. Veloster.2019 Elantra shudders periodically while idling. My 2019 Elantra Limited will do a shudder that you can feel in your seat while idling. It's only 2 months old, it's been doing it for a little over a month and wanted to see if anyone had ideas or experienced this and it's "normal." The car has to have warmed up first for about 5-10 mins.My car is a 2017 Hyundai Elantra with 49745 miles on it. At times when I brake or slow down to brake at lights it vibrates and rumbles. What does it mean? I bought this car last April 2018 from ... Does the vibration occur while the car is still moving forward, or after it has come to a stop? If while still moving forward, the cause is likely ...With a condition such as this, it is normal for it to run rougher when electrical components are tuned on and it is normal for a car to run rough when the idle is to low. My first instinct here is to clean the throttle body , fully warm the car, connect a scanner, and command the IAC (Idle Air Control) valve to move the idle high and low to see ...Rough idle, check engine light. P304 code....changed sparks and got another p304 code. I moved the ignition coil from cylinder 4 to 3....then I got p303. Is safe to say ignition coil is the issue ... (2001 Hyundai Elantra) and it started shaking and felt like it was going to stall.Rough Idle (low rpms ) 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 ...Hyundai via the smartphone app and offers a suite of services at the press of a button. This innovative connected system gives you the ability to remotely lock/unlock and start your vehicle, adjust climate controls, keep track of your vehicle's health with smart diagnostic tools and so much more. Real-time diagnostics ComplimentaryHyundai Models. Elantra & Lantra Forums. XD (2001-2006) Elantra. 02 Elantra Shakes At Low Speed. Jump to Latest Follow 2K views 4 ... ….

The car still shakes on idle, Shakes waiting on a red light on a stop sign but after I drive normal car is smooth with power. ... Hyundai cars from the Sonata to the Elantra and even the new Kona! Show Less . Full Forum Listing. Explore Our Forums. YF (2011-2014) ...You’re in luck that you at least have a check engine light on, so if it gets scanned it will tell you a code for what to look for. It can be one or many of a few things; Poor quality fuel, bad injectors, bad spark plugs, bad fuel pump, or a vacuum leak. 3. Reply. MrCommentor69 • 2 yr. ago. Same happend to my car, did u fill up recently. 2 ...Buzzing underhood and rough idle. ... 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. ... - 2013 Hyundai Elantra GLS Sedan - Black - Cone Filter.Factory idle is set too low. Car stalls at idle when you come to a stop. Only stalls after car is warmed up, (driven), and at a stop. If the car is rolling, ...Mar 25, 2019 ... How To Clean Electronic Throttle Body | Hyundai Elantra | Santa Fe | Sonata | Tucson | Genesis Coupe ... Diagnose and Fix Rough Car Idle - Main ...My daughter's 2001 Elantra has been throwing a 0303 ODS code for a month now. Coil, plugs and plug wires have all been replaced. Now car won't slow idle but when cold, idle runs up and down from 1000 to 2500 then as warms just idles faster and faster, up to 5000 RPM. If Idle Speed Control is disconnected, idle will drop but fluctuate between ...Top Answer. Alex S. December 31, 2020. If Your 2017 Hyundai Elantra check engine light comes on and the car starts shaking You should try to get off the road as soon as possible and get to a safe spot to park. Once You are stopped You should use an OBD II scan tool to read the code that is in the ECU. If Your car is shaking that usually means ...My car does not produce heat while at idle, if I shift into nutural and rev it to 1500rpm the heat is fine, also the heat is fine while driving. ... 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.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... Hyundai elantra shaking at idle, Faulty spark plugs, Poor fuel pressure or misfires. A faulty idle air control valve may cause the engine idle to drop below the normal idling RPM, which may also cause the motor to shake or vibrate more than normal. Also need to check the vacuum system. To identify the root cause, you have to diagnose the system., Elantra sputtering on acceleration and rough idle. So I hit the gas and the engine attempts to rev up, but ends up sputtering along till it catches again and whirls up. It happens in all gears when going past a certain point on the gas pedal. Thought it might be dirty spark plugs, so I changed them out., If your 2013 Hyundai Elantra has been experiencing a rough idle, it may be necessary to replace some parts in order to properly diagnose and repair the issue. In order to do this, you will need to replace spark plugs and wires, throttle body and EGR valve, fuel injectors and fuel pump if necessary. This will ensure that all components are ..., The check engine light came on an it has two codes P016B, and P0172. It has intermittent rough idle, hesitation while driving and hard starts. The oil smells like fuel. I had the car checked out by a local garage and they wanted to do some repairs but I did them myself and just paid them for their diagnosis., The most obvious causes of your car shaking in idle are: Bad CV joints - Working together with the drive shaft, cv joints get the engine power to the wheels and, if damaged, can be the cause of the vehicle shaking in idle. Broken Engine Mounts - As the name implies, these components help affix the engine to the vehicle., I can be sitting at the light and I start to see the rpm's go from 600-700, then drops to 500. The moment it hits 500, I feel the engine shake the cabin and the rpm goes back up to 600-700. The motor was replaced in August due to 'ticking' sound coming from the engine. Hyundai claimed it was 'engine' failure., 2001 Hyundai Elantra Poor idle. RICKY55 MEMBER; 2001 HYUNDAI ELANTRA; 4 CYL; FWD; AUTOMATIC; 60,000 MILES; ... If none of them make a difference you may be dealing with an engine vibration, double check the mounts to be sure you dont have one that is collapsed a little. Why was the timing belt already changed (20k on new belt, 60k on car), 2000 hyundai elantra 1,333 MILES Hyundai elantra 2000 shakes at red lights and when turned on and park have to floor gas pedal just to get to 20-25 mph and idle jumps above one when in park shakes no power really sometimes when it shakes the lights dim, 13394 posts · Joined 2014. #7 · Jun 8, 2015. Gee, I paid $55 to the dealer to have him look for a similar rattle, and what it was was the bracket that is welded to the exhaust that attaches to the hanger. I realized this three weeks later when I was having tires installed. I'm a bit miffed at the $55 "Diagnosis fee"., I notice on my 2018 2.0T that I have a rough idle within 30 seconds of a cold start. It's very noticeable when it hits about 1500 RPM. It goes away when it goes down to 1000 RPM. I have attached a video that shows the startup: There are no pending codes and the check engine light has never gone 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., If the front or rear motor mount is weak/bad the vehicle will have a noticeable vibration at idle that seems to disappear when driving. The rear mount I am speaking of is underneath, middle of the car, and runs from the sub-frame to a bracket on the engine block. Just had to change one of these on an Elantra w/ 4cyl and was amazed at the ..., Here are the most common symptoms of P0304 in the Hyundai Elantra. There may be no noticeable symptoms at all. Check engine light; Your car may run rough, be down on power, and stall. Your Elantra may produce excess vibration, especially at lower RPM. Fuel mileage may suffer. You may smell raw gas coming from the tailpipe. The engine may backfire., 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 ..., sbr711. Slow idle harmonics,,, turn on A/C steps idle up slightly to help dampen crankshaft pulses.... same effect as your lawnmower at slow speed,, run it up and fire pulses is so close together it cancel out the feel.. <--- Please fill in the 'location' and 'what you drive (year & chassis) and engine size ' boxes on your personal profile page ..., Advice on 2013 hyundai elantra, changed spark plugs last night and seemed to run fine, but on the drive to work this morning me and my SO noticed the car to be shaking quite a bit even at stop lights, if you guys can please help me out, thanks. Archived post. New comments cannot be posted and votes cannot be cast., 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 ..., HELP: '04 FORD TAURUS SE DOHC - P0511+P1633 .. blows fuse for the idle air control module everytime, won't idle on its own, had funny sounds coming from where the belt is.. would sound worse/louder while driving slowly or sitting still. Improved with acceleration, Based on the symptoms you described, such as intermittent engine power loss, shaking at idle, and the engine light coming on, it's possible that a sensor problem could be causing the issue. Seeking a second opinion from a reputable mechanic or a specialized Hyundai technician would be recommended to accurately diagnose and address the problem ..., If your 2013 Hyundai Elantra has been experiencing a rough idle, it may be necessary to replace some parts in order to properly diagnose and repair the issue. In order to do this, you will need to replace spark plugs and wires, throttle body and EGR valve, fuel injectors and fuel pump if necessary. This will ensure that all components are ..., 2013 elantra. engine stalls at idle after a few minutes. will restart immediately and smoothly. when stalling, engine shutters for just a second and quits. has to warm up first. tried opening gas cap, throttle body looks super clean. operates fine at other then idle, no missing or hesitation,tach works always. Mechanic's Assistant: Is the check ..., Hyundai Elantra Coupe Shaking When Braking - RepairPal ... Close, 13394 posts · Joined 2014. #7 · Jun 8, 2015. Gee, I paid $55 to the dealer to have him look for a similar rattle, and what it was was the bracket that is welded to the exhaust that attaches to the hanger. I realized this three weeks later when I was having tires installed. I'm a bit miffed at the $55 "Diagnosis fee"., 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., 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., 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 ..., The seats and steering wheel vibrates. When I turn the a/c on, it shakes even worse. I cant even lay my head on the headrest due to the annoying shaking. I replaced the fuel injectors, replaced fuel filter, MAF, new spark plugs Bosch Platinum +4 from warn out Hyundai dealership NKGs. I even had the dealership check the shaking out., 1 post · Joined 2017. #1 · Mar 7, 2017. on our 2013 Elantra we're having intermittent problems with the engine losing power while driving and the tachometer reading "0", yet the engine is still running. had to turn off and on about 4 or 5 times this evening to get the car to "reset" itself. usually happens around 35-55 mph but this evening it ..., #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., The idle on my sister's '02 seems to be kinda low... and it shakes some at idle. The tach sits just above the line below 1k... I assume that would be ~500rpm. Is the idle lower than normal, and if so... how would that be adjusted. quick recent history of the car: - replaced a stuck..., NOTE: 1.) do this when the engine is cold -a hot block can ignite fluid. 2.) Use the starter fluid sparingly -too much will not completely evaporate as the engine gets hot. 3.) Be careful around electrical connectors, especially the spark plugs -electrical leakage may cause a spark, setting everything on fire., 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 ...