2015 Sonata Rough Idle

I have changed throttle body, sensors, vacuum hoses, - Hyundai 1996 Sonata question Search Fixya Press enter to search. Most often an input sensor has failed or the throttle body has a problem. Still runs rough and code will not clear Posted by Jay Leinbach on Dec 29, 2016. 3 Premium 6MT (66K miles) was having a somewhat rough idle for about a year, down at about 600-700rpm when sitting at a stoplight or in stop-and-go traffic. I am getting calls night and day to pay for a car that I don't have. When I stop the car while it is running, say a red light, the car runs very rough, I mean rough. High mileage at exactly 200k but I decided to take a chance and make a hobby repair vehicle out of it. Astra running rough on idle On the 30/Jul/2019, essential maintenance work will be carried out to enhance and improve your RAC forum experience. I plugged in my obd2 reader and turned on torque pro to verify that the engine isn't just bogging and, smooth or rough, it's idling right around 650rpm. It would hesitate, seem to misfire for about 5 seconds, then smooth out. According to my service guy, plugs in the 3. 5 in the horizontal / lateral direction with Pico sensor mounted in seat track as indicated - continue with steps to reduce the amplitude (mg) of the vibration by adding spacers in key locations to reduce / eliminate ground out within the engine mounts. Constant weak/rough idle and/or random P000A solution Just wanted to let everyone know what my solution was to these two problems. It is not always easy to diagnose the cause because there are so many factors involved here. most cars come with at least a 60-90 day dealer warranty from the date of purchase. I have a 2018 Sonata and it idles rough also and when I'm at a stop, if you barely take your foot off the brake, then it goes back to normal, which is telling me that Hyundai has a problem with a egr valve from the motor to the brake booster. Misfire/Rough Idle. I would check it out;the part is about $35 and is easiloy replaceable. Every now and then at a stop, the car will get a jumpy rough idle. It take off smooth and when you turn the engine off , the car stop straight away. The 2015 only has 15,000 miles on it but the car idle is loud & rough. 4L engine noise. The vibration gets worse in drive and reverse but it is still present in park and neutral. This information may be used by NHTSA during the investigation process. I’ll give you the answer which goes out for all vehicles. Almost to the point where the misses are felt as small shocks through the drive train. Amazingly, the technician was able. A problem with fuel delivery, spark plug operation or metering of the air-fuel charge can cause problems at idle that may not be obvious at higher rpm ranges. The throttle position sensor (TPS) on most vehicles is located in the engine compartment. Some 2001 MY 2. A Honda with a rough idle isn't terribly uncommon, especially in older Civics. I have an 03 sequoia with 218k miles on it, it has been rock solid. donno if that helps diagnose problem any but just another piece to the puzzle. Idle speed (or idle) is the rotational speed an engine runs at when the engine is idling, that is when the engine is uncoupled from the drivetrain and the throttle pedal is not depressed. Toyota and Lexus rough idle after battery replacement A common concern DIY Toyota and Lexus owners call CARspec for is a rough idle, starting and dying, or a hard start just after replacing or disconnecting the 12 volt starting battery. Cause: Coolant getting into the cylinders. Doesn't seem like a bad running engine rough idle, seems like it's off balance. It seems that when the rpms get too low (around 600 or so) the engine starts getting rough. Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder. The 2015 only has 15,000 miles on it but the car idle is loud & rough. 2015 occasional rough idle/sputtering Hey guys. My car idles as smooth as glass. I know there is already a thread that somewhat covers the rough idle issue. This diagnostic trouble code (DTC) is a generic powertrain code, which means that it applies to OBD-II equipped vehicles. The car may also feel rough while idling and the engine may even stall completely at slow speeds. Mine does this every once in a blue moon, all I do is rev it a few times or hold it at 2-3k RPMs for a few seconds and it clears up right away. The tiny thing that keeps your car working, often falls prey to regular wear and tear, and therefore must be taken care of. This is a discussion on Loud Engine/Rough Idle 2. A general loss of power in the car. You may file your own complaint by calling the NHTSA Monday-Friday 8am to 8pm at (888) 327-4236, TTY: (800) 424-9153. 0 there was a definite knock. when you start the car after it cools down it will idle a tank of gas through it and not mess up once but once you put it in gear it starts loping and missing. After the new sensor (NGK) was put on, the car idles pretty rough. One that annoys me the most is the rough idle when the car is warm, which leads to rather unpleasant parking experience, where the car would shake and jerk while I try to park without stepping on the gas pedal due to very limited space in my parking spot. 5 OB Limited, I had the same issue, dealer was no help even after I explained the following: I believe it's the trans, while stopped with the trans in drive, AC & engine running, place the trans in neutral, idle smooths out, place it in drive rough idle. Other than the rough idle, the truck is perfect. Hey guys, I cant seem to search and find a specific dealing with my issue. Buy online or call toll free. See our lemon odds and nada odds page to see vehicles with no repairs or vehicles with more than three repairs. I had the dealer bump the idle 50 rpm, and that cured it. Mine does this every once in a blue moon, all I do is rev it a few times or hold it at 2-3k RPMs for a few seconds and it clears up right away. Suspension Lift Kits, Leveling Kits, body lift, Ford, Chevy, Jeep, Dodge, Toyota, Mickey Thompson Tires. have tried much to fix it. My 13 was starting to idle really rough at cold start and their replacing the injectors. When I stop the car while it is running, say a red light, the car runs very rough, I mean rough. Well, after being told by "Ford mechanis" that there was nothing wrong with my car and that the rough idle was just the "nature of the Beast" I set to work myself. I have a 97 runner 5vz with 192,000 on the clock. It seems to struggle to tick over on idle. For newer models of Sonata transmission fluid temperature sensor seems to be the problem. However for 2009 Sonata transmission computer is the problem, and in particular corrupt adaptation tables. So i brought the truck at the dealer and guess what no codes, they cleaned the throttle body and reprogrammed the ECM ( bulletin from GM) at 12000km again rough idle but this time sitting at a red light you felt it in the seats ( my wife notice it ) so again to the dealer, cleaned again the TBI and reprogramed ECM. B15-038 July 25, 2015 02159 Version 1 Hesitation, Surge, High Idle, or Auto Idle Stop Does Not Work AFFECTED VEHICLES Year Model Trim VIN Range 2015 TLX V6 with. For peace of mind take a visit to the dealer, have them check. The special warranty coverage for this will only cover it if it pulls the right misfire code. "Some vibration due to harmonics". TDI Cam Timing Adjustment (for rough idle) How-to (with pics) Well, after reading the rough idle thread, I finally did my cam timing adjustment. i have had it almost 2 years with no problems. From the beginning, the car did not always idle smoothly from cold startup. If the engine speed was held over 800-850 rpm, the engine would stay running. or engine idle. When the engine is started cold, regardless of the outside temperature, the idle is rough and there is a noticable power loss. The rough idle and shake is gone. A Honda with a rough idle isn't terribly uncommon, especially in older Civics. B15-038 July 25, 2015 02159 Version 1 Hesitation, Surge, High Idle, or Auto Idle Stop Does Not Work AFFECTED VEHICLES Year Model Trim VIN Range 2015 TLX V6 with. Title: Diagnosing Hard Start / No Start, rough idle complaints or ICP pressure concerns with the CPA Tool Applies To: EPA 2007, EPA 2010, HD OBD (2013) MaxxForce DT, 9 & 10, N9 & N10 engines CHANGE LOG 2015/6/3- Added CPA Signal 2015/5/18 - Formatted Article 2015/4/29- Added links to SRT elemental steps 2014/12/16- Added hot test explanation. The inspection. The vibration gets worse in drive and reverse but it is still present in park and neutral. I’ll give you the answer which goes out for all vehicles. My car idles as smooth as glass. Oh and my 12 3. I have a 97 runner 5vz with 192,000 on the clock. Sometimes it's so bad the car will lurch like the engine has a misfire, or the transmission is trying to grip or something. my car started and in park the idle fluctuated up to 1500 and down to about 1100 rpms every so often, put my car into drive and it was rough then eventually died. 0T Review Relationships are said to go through a bit of a rough patch at the 7-year mark. 2011 Chevy Equinox stalling/rough idle. The rpms would be so high you could not shift the motor into neutral. TDI Cam Timing Adjustment (for rough idle) How-to (with pics) Well, after reading the rough idle thread, I finally did my cam timing adjustment. You'll find local deals, specs, images, videos, consumer and expert reviews, features, trims, and articles for every turn in your Sonata. The 2015 Hyundai Sonata is ranked #3 in 2015 Affordable Midsize Cars by U. Honda 130 hp rough idle: 4: Honda BF20 4stroke stalls when idle or low rpm: 0: Honda 50 outboard engine running rough at idle: 0: 2007 honda 75 bad idle and bogs: 1: 97 Honda 9. No, the cold knock is nowhere near as bad as the 5. Almost to the point where the misses are felt as small shocks through the drive train. Technician retrieved Diagnostic Trouble Code (DTC) P0171 and P0174 (System too lean banks 1 and 2). Decrease in engine power. Shop 2015 Hyundai Sonata vehicles for sale in Portland, OR at Cars. 3 and have noticed the rough idle while in park or in gear. I believe my situation is a little bit different due to the fact that the issue didn't start until I moved to Colorado (6,000+ft). Re: Need help cold start rough idle! I have about 1400 Mikes on RZR 1000 S and just checked my Valves and they were all in spec but on the tight side (Lower Spec), mine is running fine, just thought I would throw that in. See the full review, prices, and listings for sale near you!. I have a 96 Sonata and it's idling rough at standstill. So it must be cleaning the plugs, or whatever is causing it. Aside from high idle issues, low idle and even sporadic stalling can both be attributed to a bad idle control valve. [2015 Escalade purchased August 2014] I'm wondering how many of us had this rough engine idle that shakes the whole truck? I had noticed it shortly after I purchased my Escalade, I thought maybe it was cold engine at first, but a week or so later it still had the rough idle when I was stopped at a red light. 0T & 2015 Toyota Camry XSE V6 - Fortified for Enthusiast Families - Comparison Review Tweet By George Straton , November 2, 2015 at 12:00 pm. Hey all, Looking to see if anyone has experienced a rough idle with their Pentastar V6. If it only does it after a long period of time, definitely video record it. Sometimes, you could also notice a different smell from the exhaust. If the engine speed was held over 800-850 rpm, the engine would stay running. Two times it happened sitting at a red light. You can also file your complaint online. Hyundai vehicles that exhibit a no start, rough idle, fluctuating idle, or Hyundai code may require a Hyundai throttle body cleaning and relearn procedure. On later model vehicles, a check engine light may accompany the issue. Rolling/Surging or Low Idle During Air Conditioning (A/C) Operation – 2013-2015 Ford Explorer. Find the most common driver-reported problems that are to blame when a Hyundai Sonata has a rough idle. I took it back to the dealer and a mechanic did a full inspection. driving home about 35 mph, the engine made a loud clunking sound, thankfully i was in the right lane, i pulled off the street into a parking lot when all of a sudden the car engine blew. Rough Idle/Vibration In D and R. At shut down recently (last night it did it every time I tried) when I pushed the button to shut the car off, the shut down and engine sounded and felt rough, only at low. New Master Power Window Switch Left For 2012-2015 Chrysler Dodge Ram 1500 2500 $23. The vibration gets worse in drive and reverse but it is still present in park and neutral. When a throttle position sensor goes bad, your vehicle may stall or run rough at idle, and may stumble upon acceleration. When I stop the car while it is running, say a red light, the car runs very rough, I mean rough. The car still pulls hard and there does not seem to be any loss of power. Generally, a rough idle is caused from a difference in how much air the engine computer sees coming in, and how much is actually there. Hyundai Sonata Rough Idle Due to Faulty EGR Switching Valve - 153 reports. The check engine light goes on and off so I can't get the OBD II codes pulled. I'm hoping to take it to the dealership for scheduled maintenance soon after I do this to get the filters and fluids changed (in addition to the recall on the cat). Just to save yourself money go back to the same place and see if they can return the car to the same settings you had before they hooked up the computer. Reprogramming File Availability for DTC P0300 and Rough Idle – 2015 Subaru WRX & Forester 2. The rough idle is probably due to the different cam than the 6. 0T & 2015 Toyota Camry XSE V6 - Fortified for Enthusiast Families - Comparison Review Tweet By George Straton , November 2, 2015 at 12:00 pm. I am getting ready to go for service next week and need some help with my problem. It offers a competent chassis, an intuitive infotainment system, and plenty of storage, yet it. Then it went away and never came back the whole drive. Got the same problem, rough idle overnight, loud vibration in reverse. the other week me and some mates did some maintainence to the car, clean maf sensor and intake. The truck runs fine no obvious problem. Pricing Notes. 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. To rectify the situation, you need to replace your old IAC with a new idle air control valve for Hyundai Sonata from AutoZone as soon as possible. I’ll give you the answer which goes out for all vehicles. The rough idle and shake is gone. Girlfriend has a Sonata with over 100k. According to my service guy, plugs in the 3. Typically, this is the fault of the idle air control valve, which is a commonly known point of failure on these cars. The truck runs fine no obvious problem. I’ll give you the answer which goes out for all vehicles. 7L to idle rough? here are some possible reasons i found while searching lost: 1) 90 degree v-6's idle rough 2) motors were manufactured slightly out of balance 3) the 3. Google Tahoe rough ride and you will see that possibly thousands of of 2015 -16 Tahoe LTZ Tahoe's are experiencing the same rough ride issue. Started off as a minor rough idle and has gotten very bad. Hyundai throttle body cleaning may be indicated if you have the following symptoms: No start (due to throttle valve stuck closed or air flow signifcantly restricted) Rough idle or fluctuating engine speed at idle (due to air flow restricted) P2118 or P2119 occurring along with P2110:. This short video shows the symptoms, how to clean the unit, and the results. It even does it if I lightly rev the engine while in neutral. 0L is becoming more common and getting harder to diagnose. 6L Gasoline Turbocharged Direct Injected (GTDI) engine and built on or before 3/13/2015 may exhibit an engine idle surge on cold start. 16 Answers. I have been struggling with an issue that seems to be pretty common for the 5. Fuel Pressure Regulator failure symptoms. This could have been on the freeway and caused a crash. Rough Idle When Starting Cold, Then Goes Away When Engine Is At Operating Temperature More Details Below I have an older, low mileage vehicle with a V8 engine. Hyundai has determined that a dirty electronic throttle body can cause a Santa Fe rough idle or no start condition. He noted no defects with car. 3 in my '07 Tahoeyeah, I know I can take it back to the dealer, but I try to go in there as well armed as I can with info, since usually it is just a waste of time trying to get them to actually find a problem, you know?. Misfire/Rough Idle. 2006-2010 NF Sonata 2. To rectify the situation, you need to replace your old IAC with a new idle air control valve for Hyundai Sonata from AutoZone as soon as possible. Anyone else with 2015 vsport experiencing this rough idle issue also? Mine typically occurs after highway speeds and then coming to a stoplight. Quick Links Solving Automotive Idle Problems Home Honda Idle Issues, Hunting Idle Idle Speech Idle Speech, Page 2 I get a TON of questions about Honda idle problems so I've put together this article to help you should you run into a rough idle on your Honda. Mine does this every once in a blue moon, all I do is rev it a few times or hold it at 2-3k RPMs for a few seconds and it clears up right away. Rolling/Surging or Low Idle During Air Conditioning (A/C) Operation – 2013-2015 Ford Explorer. com, South Main Auto Repair. From the beginning, the car did not always idle smoothly from cold startup. Hyundai motor america (hyundai) is recalling certain model year 2015-2016 sonata vehicles manufactured may 28, 2014, to august 21, 2015. Idle is smooth and RPM stays at 1500 until blue light goes out. 6 in 12 are 100k plugs, is the 11s different? The rough idle is probably the throttle body needs cleaning. Checked air filter - almost black, box has dirt, leaves etc in it. 03 elantra that idles rough when in gear. DOWNLOAD a complete outboard repair manual in seconds. 0 ecoboost engine. I am getting ready to go for service next week and need some help with my problem. I now have 11,000 miles on my 2015 GTI. Cause: This condition may be caused by a fuel trim value not being reset after an intrusive evap purge test, causing a temporary lean condition. Hyundai vehicles that exhibit a no start, rough idle, fluctuating idle, or Hyundai code may require a Hyundai throttle body cleaning and relearn procedure. 2015 Stalling intermittently and rough idle. According to my service guy, plugs in the 3. The "sputtering" to which I refer is fairly subtle. Search by Manufacturer. Buy online or call toll free. I just purchased a 2015 Honda CR-V EX-L. I have tried cleaning the fuel lines, replacing the IAC motor, and, today, replacing the MAF sensor. Decrease in engine power. Started off as a minor rough idle and has gotten very bad. If it's dirty, you can clean it; if it's not dirty and your vehicle is idling rough, the control valve may have failed. A broad range of problems can cause rough idling in a motorcycle engine. Things I did: 1) Replaced the spark plugs with Champion 7989. Hope this helps. The vibration disappears entirely once the slightest bit of gas has been applied (that is, when in gear). The car seems to shudder every few seconds, and idles smoothly between shudders. Rough idling can be relatively cheap to fix, so users should request a diagnostic from a mechanic as soon as they suspect the problem. If I ease off the throttle its fine, however if i drop the throttle it struggles to find idle. Hyundai throttle body cleaning may be indicated if you have the following symptoms: No start (due to throttle valve stuck closed or air flow signifcantly restricted) Rough idle or fluctuating engine speed at idle (due to air flow restricted) P2118 or P2119 occurring along with P2110:. How To Tell If A Vehicle Is Idling Rough. 9 Questions - won't idle: 0: Honda 40hp rough idle and wet lower plug: 5: Honda 10hp Won't Idle: 4: Honda BF25 Sluggish throttle response from idle: 1: honda BF50 year. Drives fine, but started to notice rough idle, it is a recent purchase (last few months), so not sure about the maintenance history. About 100degF and sitting at a stoplight with Max AC I feel the roughness and idle goes up about 100RPM, this time running a tank of Chevron's finest (91-octane), so I can't blame the Costco gas. Top 10 Causes of a Rough Idle | JL Motorworks. while i was getting ready to charge a/c system, the rough idle came for a second while i was under hood and i was able to see that the belt was wobbling alarmingly, than went back to normal as idle smoothed out. 2015+ S550 Mustang Forum (GT, EcoBoost, GT350, GT500, Bullitt) - Mustang6G. Technician retrieved Diagnostic Trouble Code (DTC) P0171 and P0174 (System too lean banks 1 and 2). Those looking for a good balance between an average sedan and four-door sports car should be more than satisfied. I had the dealer bump the idle 50 rpm, and that cured it. Just hope I dnot have to take it in to the dealer. I have been struggling with an issue that seems to be pretty common for the 5. When a vehicle begins to idle rough or stall, the idle system requires service. I'm just kind of stumped as there's only an issue when at idle (stopped or in park). A problem with fuel delivery, spark plug operation or metering of the air-fuel charge can cause problems at idle that may not be obvious at higher rpm ranges. Get Yours Today! We have the best products at the right price. Hyundai Motor America (Hyundai) is recalling certain model year 2015-2016 Sonata vehicles manufactured May 28, 2014, to August 21, 2015. 4-liter gasoline engines. 2007 70hp Yamaha idles rough and has no power: 10: Yamaha 40 rough idle / stumble when accelarating and yes I have cleaned the idle jets: 13: 1988 175HP yamaha rough idlePlease help! 2: Yamaha runs rough 950-1150 rpms: 3: 1995 Yamaha 150 2 stroke will not idle runs rough: 0: 2005 Yamaha 30 hp 2 stroke will only fast idle rough, but will not. One or more of the spark plugs may have become fouled out and blackened. Group ENGINE MECHANICAL Number 01-20-002-1 Subject 2001 SONATA/ SANTA FE 2. Rough Idle And Hard To Start October 20, 2015 [email protected] automotive Blog , Diagnostics diagnostics This job turned out to be interesting as it the concern in the vehicle was caused by not one but three different problems. Fuel Pressure Regulator failure symptoms. When you are idling the engine it is not running smoothly and it is sputtering and spitting like it is going to die. This is where things get weird. The code is PO171, system lean, freeze frame fuel trim is 12. A few weeks ago. Here are the Symptoms of a Bad Throttle Position Sensor One of the more frequent problems with modern vehicles is a bad throttle position sensor (TPS). Of late, my '09 2. This information may be used by NHTSA during the investigation process. Re: XP 1000 idles rough & stalls when warm Wiggle and pull firmly on the wires at the connector end for both injectors and TMAP sensor while the engine is idling. Anyone have this issue and or ideas of what the cause might be? Thanks for any help. A misfire will cause the engine to momentarily stumble, or lose rpms, and then regain its normal engine speed. ACTION: Reprogram the powertrain control module ( PCM ) to the latest calibration using IDS or Ford J2534 release 94. Then it went away and never came back the whole drive. – ALEX Oct 5 '18 at 23:29. Below are the four most common. If the idle is low and inconsistent, it may be due to an issue with your idle control valve. Those looking for a good balance between an average sedan and four-door sports car should be more than satisfied. While driving at an unknown speed on the highway, the engine seized and the check engine and oil warning indicators illuminated. ok so I threw my battery on a charger for the last 5 hours, just put the battery in and started my car. The car has 5600 miles, and we've been in the '70's F. News & World Report. 04 or higher. Google Tahoe rough ride and you will see that possibly thousands of of 2015 -16 Tahoe LTZ Tahoe's are experiencing the same rough ride issue. rough idle after cold start on 3. After the motor would sit it would idle fine until it ran for a while. Shop our in-store selection today and benefit from free battery charging and engine diagnostic testing at the same time. This short video shows the symptoms, how to clean the unit, and the results. 7L to idle rough? here are some possible reasons i found while searching lost: 1) 90 degree v-6's idle rough 2) motors were manufactured slightly out of balance 3) the 3. It take off smooth and when you turn the engine off , the car stop straight away. com various dtc with crank no start or rough idle condition. My 2015 sonata limited hesitates after a stop sometimes. Nope, no codes, no CEL lights. This condition may be caused by the exhaust camshaft coming out of time. or engine idle. The contact owns a 2015 Hyundai Sonata. My 04 Sonata,has 28000 km there is a sound when at idle and it sound like a diesel ,if you are standing out side by the right front wheel you can hear it ,but in the car you can not hear it at all. The car performs fine when moving. when i put it in park or nuetral it idle up but it still lopes. See the full review, prices, and listings for sale near you!. He noted no defects with car. com Home Forums Technical Subforums I4 2. "Nice car!" -Engine idle feels rough and engine isn't as composed as competitors. driving home about 35 mph, the engine made a loud clunking sound, thankfully i was in the right lane, i pulled off the street into a parking lot when all of a sudden the car engine blew. I have a very very rough idle when IN gear. When the car is in drive and you are stopped the engine idles rough. I called the dealer I bought the car from to look at my high idle concerns, dash noises, and chipping paint. It's warmed back up here over the past week and the issue hasn't occured again. What causes a rough idle? A rough idle can be caused by many different car faults. Got the same problem, rough idle overnight, loud vibration in reverse. 4 cylinder engines are very unbalanced and tend to idle rough. 2015-2018 GMC Yukon Condition: A vehicle may have a concern of DTC P050D setting along with a P0300 after a cold start up. Just plur your Hyundai Sonata and Year into the Year Make Model selector above and when you search for a Idle Control Valve Auto Parts Warehouse will only show you parts that fit your vehicle. Published Dec 7th, 2015. Jetski starts and runs fine, and will run great for 3-5 minutes, even up to NEAR WOT. GM did after all issue a TSB that was supposed to address the problem so I would have to think that GM also considered all the basics. 4l 4 cylinder, a defective exhaust gas recirculation (egr) switching valve may cause an. Let me use an idle complaint that had me on the ropes as an example. 7L to idle rough? here are some possible reasons i found while searching lost: 1) 90 degree v-6's idle rough 2) motors were manufactured slightly out of balance 3) the 3. The recall covers 470,000 Sonata sedans from the 2011 and 2012 model years equipped with 2-liter or 2. 2) Gapped the plugs to. Get it up to operating temp (215*) and the idle smooths out. This problem seems to come and go and be random. When the car is in drive and you are stopped the engine idles rough. This is a discussion on Engine idles roughish within the Dodge Dart 2. I dropped the car off at a dealership last week due to CVT leak. 3L EcoBoost Engine / Mods: Bolt-ons, Exhaust, idle problems. Engine Misfire or Rough Idle on GM 4. The truck runs fine no obvious problem. The one problem I am still having is that the idle still sometimes drops when I am sitting still. When this valve is dirty, your vehicle will have a hard time idling. Very easy takes a couple hours the first time, less once you've done it. 4L Sonata and Santa Fe vehicles may experience one or more of the following conditions: rough running, rough idle, lack of power at low rpm and/or check engine light on (DTC P0335 crankshaft position sensor malfunction). For peace of mind take a visit to the dealer, have them check. The 2015 Hyundai Sonata is ranked #3 in 2015 Affordable Midsize Cars by U. Two times it happened sitting at a red light. News & World Report. Got an 08 with the 4. This is a good example of how basic engine diagnostic tests can work to pinpoint the root cause of the cars problem. Mechanics may also provide a fuel system cleaner service as part of oil changes, which is another way to either fix a rough idle or prevent a future one. "Nice car!" -Engine idle feels rough and engine isn't as composed as competitors. Generally, a rough idle is caused from a difference in how much air the engine computer sees coming in, and how much is actually there. Hyundai issued a service campaign T1N for the same exact problem for their 2011-2014 Sonata 2. DECEMBER, 2015 2011-2012MY SONATA (YF) SONATA GDI ENGINE INSPECTION / REPLACEMENT (RECALL CAMPAIGN 132) Description: Certain 2011-2012 model year Sonata (YF) vehicles equipped with 2. while i was getting ready to charge a/c system, the rough idle came for a second while i was under hood and i was able to see that the belt was wobbling alarmingly, than went back to normal as idle smoothed out. donno if that helps diagnose problem any but just another piece to the puzzle. most cars come with at least a 60-90 day dealer warranty from the date of purchase. When the car is in drive and you are stopped the engine idles rough. Rough Idle/Vibration In D and R. On our recent road trip through the Southwest where the high each day was from the high 90s to the low 100s, the a/c was essentially set at 68 degrees on AUTO the entire time we were in the car. To rectify the situation, you need to replace your old IAC with a new idle air control valve for Hyundai Sonata from AutoZone as soon as possible. The mechanic cleared the MIL light, but we'll see if it comes back. I have a 96 Sonata and it's idling rough at standstill. I've had my 2015 D for 2 weeks now and I love but there are a couple of things that are not right. It also didn't trigger any trouble code. On Friday I figured I’d take it for an oil change before getting a price on it from carmax, but didn’t wanna bother spending a lot to fix whatever was causing. From reading a bunch of posts, I feel ok about the 2. I took it back to the dealer and a mechanic did a full inspection. I am still able to hit 16 17 PSI so I don't think the car has any boost leak. Constant weak/rough idle and/or random P000A solution Just wanted to let everyone know what my solution was to these two problems. Hyundai issued a service campaign T1N for the same exact problem for their 2011-2014 Sonata 2. Drives fine, but started to notice rough idle, it is a recent purchase (last few months), so not sure about the maintenance history. Nope, no codes, no CEL lights. Rough idle and misfire from cold start Just got a Jetta again - 2010 Limited Edition just shy of 100K miles and I've got one problem with it. P0506 Idle Air Control System RPM Lower Than Expected OBD-II Trouble Code Technical Description. When a throttle position sensor goes bad, your vehicle may stall or run rough at idle, and may stumble upon acceleration.