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  1. AD (2017-2020) Elantra
    From previous post... Mechanic checked all belts and pulleys. I thought it might be a bad diode in the alternator but they said they removed that pulley and sound still happened. They said with a stethoscope they felt the noise was loudest at the bell housing part of the transmission...
  2. MD (2011-2016) Elantra sedan/coupe
    So long story short, I have an Elantra 2013 with about 150k miles on it. In the winter here it gets around 20 degrees constantly so initially I assumed my battery was dying. After not driving my vehicle for a few days, my car would just.. not have any electricity in it. I mean, the doors...
  3. HD (2006-2010) Elantra
    This is for my mom's car. 2010 Elantra touring. About two weeks ago she told me that her battery light and ESC had come on, she went and had the battery tested (it WAS past it's prime) and had it replaced. After that was done, battery light and ESC came back on (I believe that she did have...
  4. AD (2017-2020) Elantra
    Our 2018 Elantra has a fairly loud engine area whine when starting. You can also hear it quieter during some accelerations. Here is what we have had tested / diagnosed. This happens regardless of warm or cold temps outside. This happens even after the car has been started a few times and...
  5. AD (2017-2020) Elantra
    Main Question Does the 2018 Hyundai Elantra have a "smart charging" system that would make the alternator level appear high (15.1) and the battery level might appear low like 9 instead of 10.8 or 10.9? Two shops telling me two different things. Details 2 months ago car wouldn't start. Auto...
  6. LM (2010-2015) Tucson/IX35
    The problem my wife was having is that her 2013 would start and run fine multiple times. After sitting for a bit, it would sometimes have little to no power and we would have to jump start the vehicle. I thought it was a battery and replaced it with a spare that had only been in a previous...
  7. CN7 (2021+) Elantra
    I just bought my 21 Elantra SEL earlier this year. It has 58,000 miles on it and I've had no problems (other than my phone disconnecting randomly) until a few months ago. My car will randomly struggle to start after pushing the button. I hold it down, and it kind of sputters but doesn't turn...
  8. NF (2006-2010) Sonata
    My son has 2006 Sonata 3.3 and is having issues with the alternator and or battery. The battery light comes on the cluster when idling but goes off around 1700 rpm. I checked and the alternator is not charging at all at idle but puts out around 14 V at and above 1700 rpm. Is this a bad...
  9. MD (2011-2016) Elantra sedan/coupe
    Easier to explain the issue with a video: Car: - 2013 Hyundai Elantra Coupe GS with 145k miles Problem: - Car stutters aggressively while idling. The entire car shakes when it happens. Gets worse when using electronics, get worse while in drive. Summary: Only started happening in the last...
  10. DM (2013-2019) Santa Fe
    The Alternator Harness has an extra wire (in addition to the four going to the plug). I am NOT referring to the 12V cable that is bolted to the Alternator. It is smaller, thinner and wrapped with harness tape. It emanates from the Alternator harness about ~4-5" and presumed to be broken when...
  11. Y2-EF(1989-2005) Sonata
    The end lug of the wire on the B+ terminal side just fell off leaving me stranded. It might explain the weird idle issues and electrical problems that were popping up.. This is more of a quick write up to say what's needed to replace this cable. - At least 6' of 4AWG wire. The wire diagram...
  12. YF (2011-2014) Sonata/i45
    I’ve been trying to get the alternator out of my car, but the bottom bolt is too long and hits the frame. I’ve tried prying the engine around to see if it could come through but no luck. What should I do? It’s a 2011 sonata 2.4L
  13. NF (2006-2010) Sonata
    Hello Hyundai Experts, I've got a Sonata 2009 GLS 2.4 L. I had a dead battery issue. My battery was pretty old and had plans to replace it. So without doing any further tests, got a new battery from Costco. But a few days later, got battery light again during driving, which when I was driving...
  14. YF (2011-2014) Sonata/i45
    I have a 2012 Hyundai Sonata. The other day it completely died so I replaced the battery. The battery died quick so later that day I replaced the alternator. That lasted half the day. The car will now not start. Lights and radio all work but car won't start. Could that be a problem with starter...
  15. Getz Forum
    Hello everyone, I just brought a Getz 03 reg, it’s on 34k miles and is prestine, but there is a few issues. Firstly the sunroof, I have the key to manually wind the sunroof but the buttons do not work, neither tilt nor open, there is no feedback from said buttons, it’s like they are...
  16. CM (2007-2012) Santa Fe
    Hi , i have 2007 2.2 Hyundai santa Fe . Ever since I've bought the vehicle 7 years ago, the battery light has been on , it has never turned off no matter what. 3 years ago my alternator failed and I changed the diodes and regulator , afterwards it charged fine everything in spec but the battery...
  17. RB (2012-2017) Accent
    Recently changed my wife's serp belt on her 13 accent. Anyone whose loosened the alternator will discover there is enough room to easier loosen the old belt to remove, but not really enough to fit the new belt over the pulley before the alternator hits the motor mount behind it. I wrestled with...
  18. MC (2006-2011) Accent
    Hyundai accent 08 - RHD 1.4L manual approx 150000km I have recently replace my battery after some issues with the old one. However am facing some problems with the new battery. I got it checked 4 times by the battery service dealer and they told me all is ok with the charging system and battery...
  19. MD (2011-2016) Elantra sedan/coupe
    Hi There, I've posted about this vehicle on here in the past but thought I would come back and ask for your opinions on some issues I'm experiencing with my 2016 Elantra L+. Good news? Its still running. Bad news? well, all this.. Major (perhaps?) issues include: - When cold started and in...
  20. RB (2012-2017) Accent
    Hi, 2015 Hyundai Accent with 125,000 miles. Located in New Hampshire. I noticed as the weather got colder that my headlights were dimming on occasion. I didn't notice it all summer and it appears to get slightly better after I drive the car 20+ miles. I checked battery voltage and it was...
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