Hyundai SantaFe - Surging Lights? New Alternator & New Battery
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- Опубликовано: 28 апр 2024
- In this video I have a look at a customer's 2008 Hyundai SantaFe that has an issue with a battery draw and the customer states the dash lights and headlights surge when the blower motor is on. This vehicle was already at another shop, and they replaced the alternator and battery. Let this video be a good reminder to not forget the basic checks.
-Enjoy!
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Due to factors beyond the control of South Main Auto Repair, it cannot guarantee against unauthorized modifications of this information, or improper use of this information. South Main Auto Repair assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. South Main Auto Repair recommends safe practices when working with power tools, automotive lifts, lifting tools, jack stands, electrical equipment, blunt instruments, chemicals, lubricants, or any other tools or equipment seen or implied in this video. Due to factors beyond the control of South Main Auto Repair, no information contained in this video shall create any express or implied warranty or guarantee of any particular result. Any injury, damage or loss that may result from improper use of these tools, equipment, or the information contained. 
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I've been watching your videos for years. Just when I think I've seen it all, you teach me something new. Great job as always Eric!
Never to late to learn!
I was gonna say the same thing!
If he can do it, I can do it? Sounds like an impossibility to me!
It's a miracle that a two thousand and eight hyundai is still on the road.
earths allways stuff up. tight, clean.. more the merryer.. learnt this in the 70,s.
A simple ground literally a 20 $40 fix and some yahoo at a different repair shop puts a new alternator and battery in it. Thanks again Mr. O for your patience and honest integrity when it comes to repairing a car.
Unloading the parts cannon is easier than actually caring about your customers and work-quality.
DIY Price - Eric has to make a living - Parts, Diagnostic fee, taxes, Labor, shop supply's = my guess is $150
As a light defense,.... The old battery might actually have gone bad .... because the alternator could not charge it sufficient. Eric did a good job explaining voltage drop! I was secretly expecting a rotten (green puss) flexible engine ground cable and a money-shot. But this one was an acceptable alternative! Good fix.
@@smijas Second defense: the alternator also may have gone bad if this situation had been going on for a while. The surging of the engine points to a (very) heavy intermittent load and that CAN kill an alternator depending on how high the current draw surges.
Ground errors in a car can be time consuming to investigate and some garages simply fire up the parts cannon and don't want to spend the time when that doesn't solve the problem.
@@tjroelsma That's not really a defense. You've just wrapped back around to justifying it not being the shop's problem they didn't do it right despite being paid to fix the problem.
That was a genuinely professional fix. It's what sets you apart from everyone else.
love the use of the nutsert. great idea
Mrs. O is the bright part of Eric’s day. Makes things much better when he is in a fiasco.
Bright part of his life!!
I call my wife my wonder woman because I wonder how she's put up with me for 35+years! Somehow us guys actually find the right lady!
Creepy
Infuriating that you're always the Ringer that's brought in to fix everyone else's mistakes. Everyone else makes the money and you actually fix the problem. Great job as always!
Nah we fix a lot of different things through out the day
While watching this video, I got a feeling that Mr Eric was like a professor in the university, trying his hardest to explain students "how and what", instead of just quickly getting to the cable and move to the next car.( my uneducated opinion). Thank you for the lesson Mr Eric.
All the hopes and aspirations of this lady ever showing her car in the 2056 Old Westbury Gardens Antique show, dashed by two holes!
😐 Thanks, Eric!
I still say you should get the Honest Abe Service Award for Honor and Honesty and Integrity !!!!!
Funny you mentioned this because… the GA (general aviation) YT folks all fly in to the MidWest and pat each other on the backs with awards.
Agree with SMA getting the King Kohuna award for honest, quality service.
Reaching for a pocket knife that's not there, and turning on a light switch when the power is out... Such a wonderful feeling
I feel smarter every time I watch Professor O.
After 1 year my IQ increased over 150 points.
Me too !
I love it when my mechanic drills a bunch of holes in my car lol. This is one of the best videos I've seen on voltage drops and tracking down bad ground wires. The setup with the new terminals and wiring looks much cleaner with the new gear.
You’re the kind of mechanic everyone hopes they have.
Who else is sparking one up and watching south main auto?
Watching those metal shards flying by the fuse box gave me anxiety. I've learned a lot from your videos. Troubleshooting gold!
It'll be ok ;)
Power was disconnected. As The Professor sadi, it'll be fine.
Shoulda used a magnet to collect them shavings! Otherwise, an outstanding vid.
@@gailtaylor1636How is that relevant?
@@michaelgleason4791 Why was the guy anxious about the metal shards? I'd assumed because he thought they would blow fuses. The shards were blown off BEFORE power was connected. Nothing to worry about.
As a general repair shop, you are much better than any brand specific dealer mechanic.
I was a dealership mechanic, (Chevrolet,) and you sir are an excellent mechanic that gives a damn, thank you!
It seems like 90% of charging/starting system problems over the years have been connection issues. Anytime Mrs. O and Andy visit it's a good day!!!!
This is the "I understand what the individual electrons are doing" level of troubleshooting. My hat is off to you, sir.
Brilliant video. Old fashioned volt drop diagnosis post to terminal, terminal to cable, cable to contact on body or component. Tip top
Yes sir. Most people do not understand that though
As an electronics guy, your explanation of voltage drop is spot on. Great job taking a simple problem and showing the thought process.
Mr. & Mrs. O are GREAT together!! The perfect couple. She’s adorable and can hang with your sarcasm and compliments it perfectly!
Probably one of my favorite SMA video's. Great explanation on voltage drop and bonus, no bashing GM.
No-RUclips Andy needs to visit more often. Love the banter!
Agreed
Did you catch the episode that Eric filmed over at his heavy duty shop in town?
I like it that you never want to appear to be full of yourself, but don't ever sell yourself short. I follow along with your findings, and start thinking of the next step. But ALWAYS you jump to the most effective test that should come next and it only takes you a split second. Just amazing to watch. And know that this is coming from the guy who was always assigned the tricky jobs where you had to work yourself through step by step. Huge respect for your skills!
We came for you! A cameo from Mrs. O is nice. I'm a big fan of Astro tools too.
Great Job Eric! Just did the same troubleshooting for my wifes 91 Lotus Elan. Two seemingly unrelated symptoms, cooling fan doesn't turn on all the time, and idle motor doesn't work all the time. I measured the resistance of the cooling fan switch at the relay panel inside and found the problem. Since it has a rear battery, I used the same jumper cable trick to see if I was on track. Stepped my way from the cooling fan switch towards the battery to find the firewall ground point for the engine was all rusty. Cleaned up firewall and replaced the ground wires. All fixed.
Prof. O and his Masters class in voltage drop. This 66 yr old has learned a lot over the years watching your videos. Those who pay attention learn something every day, those who don`t fire the parts cannon....and fail epically. The day I do not learn something will probably be the day I leave this Earth. Well Done Sir.
Thank you SMA. Appreciate your videos. Thank you
Thanks man, appreciate the views :)
You and Ivan run into these odd grounding issues. But both of you really hit it home with how to diagnose. Great video - very informative.
I'm envious of those two geniuses, my diag skills are lagging in comparison and I've been doing this for years but nowhere near as good as these guys.
I had vibes of Ivans video in this too!
Voltage drop testing is pretty basic 👍🏼
Great job Eric O!
Voltage drop tests are most often missed, but one of the best procedures to prove a diagnosis.
Keep 'em comin'! 😁👍
Watched pretty-much all SMA videos, all taught me much since the days of Re&Re Engines and Transmissions. I was very-good with Charging system and Electrical problems. This SMA video diagnostic was of a level I've never seen before, hence other Mechanic's send ing SMA electrical problems they cannot diagnose. In that how did you come to decide to bypass Grnd/Plus high amp connections !! ?
So obvious your skills in N/A Auto Diagnostic and Repair are so-far beyond. Your goodness and often hilarious verbal dialogue put's you, in my opinion, the Master Mechanic And the Teacher you've become, Sir. Thank You Eric.
Wednesday night (sunny Aus) watching Eric perform some more mechanic magic!
The vast majority of alternator replacement videos, most done by professionals, fail to show any voltage drop testing before they swap in a new alternator. It's a glaring weakness in the way flat rate work flow pushes guys into cutting a corner that literally takes a minute. After a while, guys forget how to do it correctly. I get that new alternators are more tricky because they adjust output based on a more complex algorithm, but diagnosis is the fun part of auto repair. Great demo, Eric!
It's even worse than that. 95% of the guys that own a multimeter or a scanner don't really know how to use them. Don't want to "know" as that requires time to learn. They got fishing or hunting to do.
I used to have a 90s Corolla which due to the NUMMI deal came with a GM alternator. Those things always had the decency to fail completely. I went through several of them. Those Delco alternators were absolute junk new, and even worse when remanufactured! I bought a newer Corolla and first on the list was ensuring it had a Denso alternator...
I always get a ton of info from The (So) Main Man, Eric! Here's a ton of thanks back at ya, brother.
There is something to be learned in ALL of these videos which deems them all VALUABLE! Nice job Eric and Mrs O’s appearances and good humor is always a treat.
Mrs O came out, knowing we needed to see something that isn't old and crusty....lol
Ivan made rocket science out of a loose bolt resulting in a bad ground, you found this without 2 or 3 hours of diagnosis. Well done Eric quick and straight to the problem.
Puts cable right where Hyundai should have.
On these electrical diagnostic jobs, I always enjoy watching Eric work through the diagnosis. His knowledge of automotive systems and his humorous explanation of steps along the way made me a fan for life.
Thanks to you, Mr. O., the terms "frig hole!" and "frig!" have now entered my vocabulary.
That was the absolute easiest explanation on how to test voltage drop I've seen!
Brilliant move, pre-drilling that Fluid Film hole. You're always thinking ahead, Eric!
Hey, I do what I can 😅 🤷♂️
Another fine example of the practical application of Ohm's Law. The current through the high resistance of the bad body ground connection under the fuse box caused the voltage drop to show up when all the circuits were turned on to draw added current requirement.
Another fine professional fix by the expert Eric.Obviously, the other shop threw the parts cannon at it even now they had no clue.
Those symptoms were confusing. Good job sorting it out.
Such a good repair, better than factory too. CC was giving you applause, at each step, too, esp. before the BIG SQUEEZE!
Voltage drop testing is such an under used and misunderstood tool in diagnostics.
Thanks again for the “real world” use video
BEST DAMN VIDEO ON VOLTAGE DROP ON THE ENTIRE INTERNET !
I could tell that you were in quite the "teachy" mood that day. This was a great video and a fun ride!
Have the same issue with my Camry and gave up on chasing it down after an alternator and battery replacement. Looks like i have something to do this weekend. Quality content as usual.
Very interesting! And Mrs. O brightens up all videos even dressed in black!
Not a dumb video. Your “dumb” videos are some of the ones I learn from the most.
Thanks for sharing your knowledge.
So glad that you covered this subject...the more people that know how to do diagnosis the better :)
Amazing job! I bet you just gained a new customer for life.
I have been a parts changer over the years, what you have really open my eyes to is checking wiring, connections, power and grounds. I do appreciate the content you share, thank you.
"if you can judge your charging voltage by sound...." Best Electrical quote ever LOL
You’ve been doing these videos so long that I bet good money that even when you’re not making a video, you still talk out loud and describe what you’re doing. 😀
That's a great diagnostic technique
@@demonknight7965it is actually.
Saw the title and said push the clutch in. Learned about voltage drop. Great video sir!
My Santa Fe had a service bulklketin about this thing. I took the cable off of both ends, cleaned the body ground post and terminals, applied some Tweek , and never a hiccup after. Great job, and great explanations.
You sir are the Einstein of auto repair. Wish you were not so far away from my home in NH.
Excellent video SMA!! I get a kick out of how much the neighbor mowes the lawn😅
Great job Eric! Had pretty much the same vehicle in my shop about 18 months ago with the same issue. You found it faster than I did 😂 I ended up repairing the cable end at the factory location but what you did was an excellent repair also. Cheers from Canada!
I teach 200mv on the ground side and 500mv on the positive side for voltage drops. Great video Eric and this is why I recommend all my students follow you. I also use your youtube videos as a sub plan, when I am out! Keep up the great videos!
Excellent job as always !
You would make a great automotive teacher. Awesome job.
Eric is! We are the students. This is my favorite class.
Yes sir.
Nice troubleshooting, nice repair, and as a bonus, the Lovely Mrs O looking gorgeous. 🙂
You make things so simple to see, understand, and learn, Eric. Thank you for the continuing education!
Another excellent video. Great explanation.
Thanks!
Eric has me so convinced everything is wiring, I’ve spent hours trying to prove my BCM isn’t bad, but I’m finally convinced it’s bad.
Remember the old Cummins tool trucks? I bought an identical looking set of carbide burrs from them years ago in the same gray case with no label. They have been great!
Just seen the same sort of issue on Ivan's channel. I really enjoyed this one Mr O.
Not a dumb video Bubba. Do you know how many times I've kicked myself for not going back to basics? Or at least beginning with the basics? Doh!
The burr kit is a Astro Pneumatic Tool 2181 8-Piece Double Cut Carbide Rotary Burr Set 1/4" Shank in Blow Molded Case.
I’ve been watching your videos for many years now and you always do a great job for your customers and save them money….I think I’ve been watching for 8-10 years now….enjoy and learn along the way,,thanks
Awesome! Thank you!
How in the world do car manufacturers think that grounding to the body and then from the body to the engine is even remotely a good idea? With the amp draw of the starter I would think a cable from the battery to the engine block would be mandatory.
Thanks so much Eric for the great video and for including the "Dark Princess"" that is the light of your life.
The starter draw isn’t that high on smaller 4 cylinders
I just had the battery light go on on my truck. Verified no charging from alternator, after inspecting some things and disconnecting the battery terminals, found that one of the positive cable bolt on postive terminal was corroded and eventually came off as i was wiggling it. Cleaned terminal, drilled out remnants and used a bolt and nut to replace the broken bolt. Easy. Waiting on new terminal for proper repair
I have always checked grounds first when i see lights flickering or analog gauges bouncing. Good job Eric!
Your videos are never dumb.
A smart guy taught me about voltage drop 50 years ago. I've used that trick with jumper cables many times
Not a dumb video Mr. O, I happen to love voltage drop videos, they’re fascinating imo
The MD has done it again! ( Master Diagnostician) Great video. I learn so much from you. When you retire from this career, you should be a teacher!
At least the second video on this channel where "the other garage" fired the parts cannon and did not fix the problem, and the problem was traced down to a bad ground (other one was a bad block to chassis braided cable). Good job!
Tremendous work Eric. Thank you and Mrs. O. Cheers.
I'm always learning...never to old to learn.
That needs to be a SMA t-shirt already , "There's your problem lady"😅
I've never ran into this. Love waking up and learning a new thing. Thanks Mr O. Pretty dang cool!!!!!
I'm on some old car forums. When a person has an electrical problem, many chime in to clean all your grounds, much like you mentioned. I'm the guy that says test (via voltage drop) and only repair the bad one. Or; test and determine if a bad ground is even your actual problem. When I was teaching, it was always a high point when I saw a student really grasp the concept of voltage drop testing.
Finally! Thank you! I get so frustrated when I hear people say I cleaned all the grounds lol. I always ask why? They never seem to have an answer 😅 and then I let him know about the 75 other grounds that they missed. Oh and then after that I fixed the real problem 😂
Awesome episode Mr O..learned heaps
There is value in everyone of your videos. Keep the content and commentary coming thank you
Love the access hole for the Fluid Film.😎
Condolences, but I have to say Mrs. O looks stunning. I'm already passed.
Excellent analysis. Very thorough.
Thanks Eric!
Great video!😊
It's pretty early in the morning to learn something but none the less, it happened. 🙂
Great video. Learned a lot. Thanks, Eric!
Beautiful installation, as always.
Living here in New Yorkistan with all the salt they use in the winters, the first things I always check with electrical gremlins are the grounds. More times than I can remember they've been crusty or completely rotted away. Good find.
The whole time I was thinking Eric's gonna say the 2nd. hole is for fluid film😂The interesting thing is that even with a bad main ground the starter still cranked strong. Can't automatically assume that means good ground.
No guessing game for SMA and the technician is on top of things, EXCELLENT
Thanks Mr. O for another great diagnostic video!