How to repair your alternator, rebuild, voltage regulator replacement - VOTD

Alternator Repair: 1/2 to 6 hours ($10 / $425 / $680)
This video will show you how I replaced the voltage regulator on a Volvo 850. This process can be done on many alternators. Basically considered a rebuild. If you order a new regulator, make sure you get the correct regulator.
• Starting or charging i...
• Bad battery or bad alt...
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[@franks5651]

Once again Robert came through. My 850's alternator finally gave up after 260k miles. Rather than replace the whole unit, I replaced the voltage regulator with a new one (only $40) that I bought from a local supplier. It is cured now, producing 40amps of power! Thanks again Robert! His many dollar saving videos is why I gladly contribute to his Patreon account.

[@RobertDIY]

Awesome! Thanks for your support.

[@mr.phenomi2976]

Maintain this is one of the best automotive "how to" channels out there! Thanks for sharing your knowledge!

[@RobertDIY]

thanks for your support.

[@emmapilex]

I just love the way you went about it, distinguishing the generator from the voltage regulator. That right there was my take home. The next time my alternator falls short of expectation, i know what component to check out first. Thank you

[@RobertDIY]

+Emma Eme You're welcome. Thanks for watching.

[@johanvantongeren82]

You saved my life again! Second time in a month. Thanks for these awesome and very detailed videos!

[@RobertDIY]

You are welcome

[@williereyeschannel2075]

Man Robert, you sir, ROCK! Haha thanks for taking time to do videos like these, this one here saved me from going bald after looking at prices for a new or rebuilt alternator! Your da man!

[@RobertDIY]

You are welcome.

[@v8pilot]

Hi Robert, thank you for the informative video. My V90 has always had a charging problem (battery only 50% charged even after a long run. Battery itself is good). Looking at the alternator, I had assumed that changing the regulator would require removing the serpentine belt, power steering pump, etc etc, and finally the alternator itself. Your video has encouraged me to have a go at replacing the regulator with the alternator still mounted on the car. Two years back I replaced the regulator on my 940 diesel. That was easy because the back of the alternator is easily accessible. If the rev counter on a 940 stops working, that tells you that the alternator has failed. The rev counter on that car is fed directly by a wire from the alternator.

[@v8pilot]

+v8pilot OK - I replaced the regulator on the alternator of my V90 yesterday. Running voltage is now fine at 14.4 - previously it was only 13.5 and the battery never got more than 50% charged. I found that, with the V90, you *have* to remove the alternator (and before doing that, drain the cooling, remove the upper radiator hose, remove the serpentine belt, and unbolt the power steering pump). So a day's work for me to undo all that stuff and then replace it and finally top up the cooling system. I tried to remove the alternator rear cover with the unit still mounted in the car but not possible - the air conditioning pump prevents its removal on my V90. (Frustrating because I could clearly see the regulator with the cover loose but not possible to access it.) Frustrating to be compelled to do all that work - it took less than ten minutes to replace the regulator on my Volvo 940 diesel because to the good access to the alternator. Thanks Robert - several times I found your video very helpful to refer to, as there are similarities between the 850 and the V90.

[@dada1952]

I changed the voltage regulator on my 2002 V70 XC today without taking out the alternator. A bit of a PITA but quite doable. Needed to pull the dip stick tube to get enough room for the tools needed. Part was $23 off ebay. Only had one extra screw left over which is good for me LOL. Worked out great. Thanks, Robert.

[@RobertDIY]

You are welcome

[@fvh9805]

Hi Robert, With help from your video I replaced the regulator on my old Volvo 850TDI (405000km from 1996). I live in Austria so I bought a new Bosch regulator on Amazon_de for €50. Following your instructions it was an easy job replacing it. As you said, it took me an hour or so. Now the alternator Volvo/Bosch 115A works like new again! Very happy, thanks! Marc Austria

[@RobertDIY]

You are welcome.

[@bg147]

Good video and instruction. Recently, I felt guilty about replacing my alternator with a brand new one versus rebuilding it, but for $74, I went ahead and did it. It wasn't charging and the bearings were worn. If I had a Volvo, I would have gone ahead and rebuilt it due to the extreme cost.

[@RobertDIY]

Good call if the bearings were bad.

[@robertshahon6420]

soo many people will go the Reman Route, I have been changing the Regulators on my Alternators for years. Thanks for the great Video Robert

[@RobertDIY]

You bet

[@EduceEverything]

Thank you Robert! I've had issues with a dead battery. Replaced battery, still same issue. Got it tested like you suggested and they told me it was the regulator. I'm going to pull a voltage regulator from the junk yard tomorrow. The local auto parts stores are selling them for over $100!!

[@RobertDIY]

+John Newhouse Good deal, hope to works out well.

[@pstDKkonto]

I have a Mercedes-Benz 180 C from 1997, with the same alternator, with a bad voltage regulator ;-) Very nice video (Y) :-D

[@jimagles1394]

Thanks Robert, you saved me a bundle again. Replaced my regulator with one from LActrical/ebay for $25. I used a long extension with a Phillips driver bit to get the mounting screws loose and then replaced these with socket head screws so they were easy to get back on and snugged up with a shortened Allen wrench.

[@RobertDIY]

awesome!

[@ethran]

From one Rob to another, thanks as always for your info packed videos!

[@RobertDIY]

You are welcome.

[@zx8401ztv]

Smashing tutorial :-) You are lucky that your volvo alternator is accessable, manufacturers do love to play a game of hide and seek, the alternator and starter can be a bloody nightmare to replace.

[@RobertDIY]

You are so right. Replaced a starter on MVP mini van and it was murder trying to figure out where the bolts were and how to get it out.

[@darknezz19]

Just replaced the brushes on mine and seems to be good. They were pretty worn down. Thank you for the video.

[@RobertDIY]

You are welcome.

[@dtowners9688]

Learned allot about alternators, even something about volvos. Good video.

[@RobertDIY]

Thanks

[@thedevilinfrankenstein6503]

OMG!! you are awesome. I am working on a Jaguar, pain in the ***. However, this information is going to be needed to save hundreds if not THOUSANDS of dollars. So, far I need a new battery. The battery I have when I got this vehicle does not hold a charge. I hope it is mostly this battery, if not and I will DIFFIDENTLY check the alternator of how you describe here. Thank you soo much, now I am going to go see your other postings. Once again thank you.

[@RobertDIY]

+Lisa Elledge you are welcome and thank you for watching.

[@lowpulse8729]

Ok Robert, you’re the absolute Man! You don’t miss!

[@RobertDIY]

Thanks for watching

[@kevinabalo]

Thx Robert. Alternator out = PITA Regulator out = Bearable

[@RobertDIY]

You are welcome

[@miguelsepulvedapr]

Thanks very helpful...my 850 is back on the road.

[@RobertDIY]

Miguel Sepulveda Good deal.

[@Kurdy1318]

Thanks Robert you're a true master!

[@RobertDIY]

Kurdy1318 Thanks for watching.

[@Z14kt12timandjes1]

Really good content and very helpful video. Thanks for sharing this!

[@RobertDIY]

you are welcome.

[@olivejuice7004]

your videos save my car all the time thanks!

[@RobertDIY]

You are welcome.

[@olivejuice7004]

+Robert DIY the guy at auto zone just told me my voltage regulator could not be removed with out taking apart my alternator. I have a 96 850 turbo. thoughts?

[@kalomeon]

Thanks for the clear and concise explaination.

[@RobertDIY]

You are welcome.

[@michaelluhrman3439]

Excellent video and information. Very helpful for me.

[@RobertDIY]

+Michael Luhrman thanks for watching

[@lisagreen3872]

Mr.Robert you are so awesome !thank you ( I'm a lady have to work on my car and ❤️ learning ! I replaced my ac compressor on blazer and ignition on my truck by myself ( well with you tube ) Thank you so much your like the husband iI need to explain things ! Thank you thank you ?! You are so helpful ! Bless you !

[@RobertDIY]

Thanks for watching.

[@Vegethful]

You are truly amazing, sir!

[@RobertDIY]

Thanks for watching.

[@joinertia2080]

I did this for my 96 mustang....I be dam it worked just he said saved me a ton of money....thx for the video!!!

[@RobertDIY]

You are welcome.

[@asheqularif6280]

Very informative and insightful thank you

[@RobertDIY]

ashequl arif Thanks for watching.

[@nelsandrew]

Thanks! Good work and information--will do mine, piece of cake.

[@RobertDIY]

Thanks for watching.

[@javierferrandez3327]

I like your videos. Thanks a lot

[@RobertDIY]

Thanks, you are welcome.

[@dennisfahey2379]

The battery should charge to about 12.6VDC. The generator/alternator puts out about 14.3V when running. Just put a voltmeter in the battery and measure without the car running. Then start the car and measure again. (If you do not have a scan tool. ) Of course that is voltage - not current. If the brushes are losing contact you may be getting voltage but insufficient current to recharge the battery. A sign the alternator is healthy is if your headlights do not dim when you come to a stop. Note this is a great video. You do need two sockets to remove those high current lines to the alternator.

[@RobertDIY]

Thanks for sharing

[@elhanan2042]

BRO YOU JUST MADE THIS SOUND SO EASY...THANKS !

[@RobertDIY]

+El Hanan you can do a more complete rebuild but usually the regulator is the only thing bad.

[@elhanan2042]

THANK YOU ! YOUVE BEEN VERY HELPFUL AND MADE IT EASY TO UNDERSTAND TOO. GOD BLESS YOU !

[@RobertDIY]

+El Hanan thank you. May God bless you too.

[@ShanilSkyy]

great video, learned a lot

[@RobertDIY]

Thanks for watching.

[@MCRaw-qf4tu]

Amazing content, thank you

[@RobertDIY]

Glad you enjoyed it

[@genesis4174]

U a genius bro. Respect

[@RobertDIY]

Thanks for watching

[@Mishinguito]

I like this explanation is very clear

[@RobertDIY]

Glad it was helpful!

[@duonis112]

I like your videos very much. Good job

[@RobertDIY]

Thanks for watching.

[@RobertDIY]

Thanks for watching.

[@jeffs7267]

Thank you, great video

[@RobertDIY]

You are welcome

[@ioannestritemius3791]

Thank you, Robert, for so much excellent advice on DIY regarding Volvos!! - Question regarding the three screws of the alternator housing right side: what kind of screws are they, torx/shape-wise? - Thank you in advance for your reply!

[@RobertDIY]

Cross tip.

[@erikwiggins5449]

You are awesome!

[@RobertDIY]

Erik Wiggins That's what she said.

[@KW86.]

Robert, thanks for tip, very clear step by step instructions, the new alternators are sealed? Can we break the seal and replace the regulator? Thanks Gilbert

[@RobertDIY]

gilbert de la torre If it's not under warranty I don't see harm in doing so.

[@kennethstaples1059]

thanks for the enlightenment you save me $

[@RobertDIY]

Awesome!

[@juancarlosocampoperez7599]

muy buena información , Gracias !

[@RobertDIY]

+JUAN CARLOS OCAMPO PÉREZ You are welcome.

[@TheFatman2436]

Robert my alternator on my 96 is bad so I I took your advice on changing voltage regulator I was not able remove the second screw it's really hard to get to. I got bored of trying so I moved the car so I could wash it and normally it cuts out in around 10-15 minute and lights flash on dashboard I gave it a few revs and dash lights went off and I checked with multi meter when you Rev it power increases to about 14v on meter so I've left it running now for over half hour each time the dash lights come on I Rev the engine they go away and car is still running

[@TheFatman2436]

1996, 850, 2.5L

[@RobertDIY]

Do you have a question?

[@leoniefrancis1621]

Thank you so much ❤️😊

[@RobertDIY]

You’re welcome 😊

[@markfoster1726]

Good job, this video was very helpful. Where did you buy the replacement bearings? Thanks

[@RobertDIY]

I only replaced the regulator. Took it from a used alternator at the junkyard.

[@tobymaxwell2805]

Just finished this job, looking like it'll be a good fix based on the condition of the old regulator! Just one question, I drained the radiator and noticed that when I refilled the coolant reservoir, it doesn't drain back into the radiator because of the height of the tubes, should I pour some coolant directly into the radiator to be sure it is filled? Or will this all take care of itself once the car turns on and starts circulating. Thanks!

[@RobertDIY]

kzbin.info/www/bejne/Z32bg4CJarCopK8

[@jasonmitchell432]

Great video (again )! Are the regulators fairly interchangeable amongst different brands, or do you have to find your same brand alternator at the junkyard?

[@RobertDIY]

Brand

[@jasonmitchell432]

@@RobertDIY bummer. we don't have a pick and pay junkyard here. thanks for the quick reply!

[@angryrepairman5275]

im about to replace mine on a 1997 diesel s70. brushes dont reach slip rings anymore and voltage is not stabile from alternator anymore on a cold engine. I already checked and could access it without taking alternator out of engine. Didnt need to remove any coolant/radiator hoses.

[@RobertDIY]

COOL

[@ryanbraughler170]

Hi, Robert, firstly, thank you so much for making fantastic and useful videos like this. Secondly, do you happen to know if there is enough clearance on an '01-'07 (P2) model V70 or S60 or XC70 to replace the voltage regulator with the alternator still on the car? Thanks so much!

[@RobertDIY]

I don't think so on the turbo cars. Did you take a look?

[@ryanbraughler170]

+Robert DIY I did start taking air pipes and things out to have a quick look the other day. I figured I'd ask you since you may have done it in the past. Either way, my voltage regulator is being replaced today, on or off the car, lol! Too many things flickering and voltage readings all over the place.

[@ryanbraughler170]

Robert, just an update-I was able to successfully replace the voltage regulator on my '02 V70XC today, WITHOUT removing the alternator. Took awhile, and was hard to get to a couple screws, but it wasn't necessary to remove more than the oil dipstick and the air pipes in that area. Thanks for your input the other day, and for your videos too (they were helpful)!

[@RobertDIY]

Good deal, thanks for the update.

[@davestrain9529]

thanks For telling us its OK to do the V reg ON the XC..Ive done a Million of these on the 740s, 940s, and 240s. Easy stuff. Childs Play. Diving into my 2002 XC tomorrow..At least i know the problem: worn brushes. Stranded me at My customers house, Pulled my Rocky Mtn Bike out of the Back..rode home. love these cars! They love ME! Thanks Ryan...Thanks Robert

[@FretsNirvana]

Good one again Robert. My wife's 2012 XC70's alternator is giving problems. Do you know if the alternator regulator can be replaced on that car without pulling the alternator?

[@RobertDIY]

I do not.

[@FretsNirvana]

Ok ...if I do it I will give you any info I discover.

[@KeithJenkinsvideos]

anybody know if there is enough clearance on the 04 c70 to do it in car?

[@gulabk65]

good job

[@RobertDIY]

Thanks.

[@PeteBasel]

We are almost there on doing this job, but having trouble snapping the 3 clips. It looks like they snapped when Robert did it probably because the plastic is so old. Any tips on how to get to the one closest to the block? Great video Robert THANK YOU!

[@RobertDIY]

Nope.

[@PeteBasel]

@@RobertDIY I got it finally by bending the last .5" of a flat screwdriver and using it to push the clip.

[@adam182ksu]

Thanks for the video Robert. I completed the install of the voltage regulator, and when i turned the car back on, all of my dash warning lights were on and I had a rough idle. Any thoughts on what could cause that to happen?

[@adam182ksu]

Also, the lights disappear if I apply throttle, and return when I go to idle

[@RobertDIY]

probably a bad alternator or regulator.

[@adam182ksu]

interesting. i got the www.fcpeuro.com/products/volvo-voltage-regulator-huco-9162995 which replaced my Bosch 1197311520. I'll take it apart again and try again. Didn't have dash lights / idle with the OEM one. Thanks!

[@abgersaurus]

My 2001 Volvo V70 II (2.4T) has a problem with the alternator, it makes 14.3V while idling but it only makes 2Amps have you got any diy tips for fixing it? Or do I have to replace it maybe refurbish the alternator?

[@RobertDIY]

+abger saurus no I don't. Not sure what you should do.

[@jewelniles4041]

For a honda fit 09 it doesn't have that cap to take off... Can you check What do you suggest easiest way to take the whole thing out because there is no cap to take off and the price for a volt reg is the same price as remanuf online

[@RobertDIY]

sadly, I have no idea.

[@papitosabe]

I've heard before that after turning off the car, you should hear a slight whining noise from the alternator. I've also heard the opposite, that if you hear that noise, you should replace the alternator and/or the alternator pulley. I replaced the alternator pulley, but still hear the whining noise after turning off the engine. Is that normal? if not, is it usually the front or rear bearing inside the alternator that needs to be replaced?

[@RobertDIY]

papitosabe Huh? I don't know. If it makes noise, then the bearings are likely bad.

[@lizzieramirez114]

+Robert DiY thankyou for replaying😅 unfortunately i wouldnt know how to scan for codes for my car.. Is there a video that can perhaps give an idea on how to do this ? Thnx

[@RobertDIY]

Lizzie Ramirez What kind of car do you have?

[@hitrick]

Hi Robert, Could you please help and tell me if that will work on a Volvo XC70 2007 ? Or I need to remove the alternator first? Thanks !!!

[@RobertDIY]

I have no idea.

[@olivejuice7004]

so how do you find the right part # for it? And does the part change for wagons? I have an 96 850 turbo wagon. If i buy one that fits a sedan will it still fit the wagon?

[@RobertDIY]

I don't think Volvo did anything different for the wagons.

[@lizzieramirez114]

Hi robert. ive been having trouble when i start my car( hyundai 2005 accent). It happens only after i drive it for about 10 min, then i turn it off and when i want to start it again it wont. Then ill wait for 30 min or so and it will start, but weak. I changed the starter and they checked the alternator, it comes out good. I also changed the car battery and my car completely drained it dead after two weeks. What could possibly be causing this?? Help plZ any advice would be highly appreciated

[@RobertDIY]

Lizzie Ramirez Likely 2 different problems. If the car fails to start warm, that is likely a temp sensor problem. Does the car have any codes? Not sure what is draining the battery.

[@Tootoojackson]

What about if your alternator is smoking and make strange noises does that mean the alternator is done do I have to replace the whole unit

[@RobertDIY]

I would , unless you don't mind the car catching fire.

[@ianhenry7391]

Robert I have a question. I have a 94 Volvo 850. The battery was being over charged, bulging out and even smoking. I had the alternator tested and it was generating 16v-17v. is it the voltage regulator? also is it safe to drive short distances with the battery disconnected?

[@RobertDIY]

I would not do it.

[@RobertDIY]

That would be my guess.

[@fantasyworld2672]

No shit

[@marclux4020]

I have same issue. I was told the battery is part of the circuit, so car won't work without it. I found that to be true.

[@FretsNirvana]

FYI as promised. I have the cover off the 2012 Volvo xc70. All I had to do was move the power steering bracket off its' bracket and move it out of the way. It is tight but can be done. It would be easier to move the radiator hose but you don't have to do it and thereby save coolant. I don't have the regulator off yet, is there some kind of tab on the regulator cable to be able to take it off?

[@RobertDIY]

Not on older cars.

[@FretsNirvana]

Ok , so not on a 2012 then?

[@RobertDIY]

Frets Nirvana I don't understand your question?

[@FretsNirvana]

On the alternator sensor cable for the 2012 Volvo XC70, you just pull on it or is there a tab that has to be depressed to get it out?

[@RobertDIY]

+Frets Nirvana I don't know. On my car it simply pulls off. Do you see a tab?

[@-Good4Y0u]

Hmm , are these steps also good for an 04 s60? I see that Mathews volvo site said it was good for the v70..

[@RobertDIY]

I have no idea

[@CycloneCyd]

At just after 6 mins in you describe the two screws as Philips. Are you sure they aren't Pozi? I'm only watching on a small screen, but they sure look like Pozi to me.

[@RobertDIY]

I used a cross tip screw driver to remove them. Use whatever works for you.

[@arkangel2351]

Mr. I just found your video. Here’s what I’m dealing with My truck 2016 Chevy turns off while driving. And have to keep it above 2000 rpm so the alternator can generate above 13.5 v to the battery I went through 2 new batteries already thinking it was the battery but Now I believe the it was the alternator not pumping enough voltage to the battery 🔋. Battery . I jumped the car this morning before this I tested the voltage of battery and it gave me a reading of 11.9. After jumping it And leaving the truck on for 10 minutes The reading with accessories on ac radio lights Was 13.1 while truck running with accesorios off the reading from the alternator to the battery was 12.9 So I don’t hear any sound coming from the alternator like winding sound or bad smell. Do you think is the regulator the problem ??? Any info would be very much appreciated

[@RobertDIY]

Without load testing it, it's hard to say. You can drive to an auto parts store and they can probably test both for you.

[@RobertDIY]

kzbin.info/www/bejne/lWLUZWOMYqeDh8U

[@mandragor85]

What tabs? I am trying To get the cover off but it do just spring back inte place

[@RobertDIY]

There are tension tabs that hold the back cover on to the frame of the alternator. Watch it a few times maybe that will help you understand.

[@MsCleverNever]

Hey Robert, Love what you're doing here. I speak for everyone here when I say I appreciate all the info. My Honda Civic 2012 EX has recently been giving me issues. Car won't start because of a dead battery. Took it to Auto Zone and got a new battery because the reading said it was a bad battery. After it was replaced guy said I need a new alternator as well (Did not pass the voltage regulator test). However a second opinion told me that wasn't the case. Is there a surefire way to check which is the case? If it turns out that I do indeed need one what would you estimate my cost would be? According to the guys at Autozone its going to be about another $190, doesn't sound right to me. Thanks in advance!

[@RobertDIY]

MsCleverNever How many miles on the car? Have you checked with the AUTO warranty? Usually, if you can get the car started, and drive 30+ minutes, the alternator is good. If you have to have the alternator replaced, I do NOT recommend getting a cheap corner store one. The cost will likely be about $625 - $675 at the dealer, $500 - $550 at a independent shop. - Bad Battery or Bad Alternator, how to tell the difference (Brief Version) - Auto Information Series

[@crescentandstarglory]

9:50 The two prongs sticking out of the voltage regulator. One of them is pushed in. Is it normal?

[@RobertDIY]

no

[@Joe_Goofball]

Howdy, Robert! Is the voltage regulator as easy to change in a 2000 Nissan Altima GXE?

[@RobertDIY]

I have no idea

[@Joe_Goofball]

@@RobertDIY Thanks for the rapid reply!

[@simplelangperorock]

hi sir, my car’s onside lights flickered and next secs, it has no power. could that be the voltage regulator? thx

[@RobertDIY]

no, probably a ballast.

[@simplelangperorock]

@@RobertDIY A what? What is that?

[@jasonmitchell432]

Also, do you have to find one with the same amperage?

[@RobertDIY]

Would be wise

[@kanibis420]

Hey Robert , I went to buy a Alternator today and some shops asked for a ID # other shops didn't . How important is the ID # matching ? Went on eBay and 2 different IDs said they would work for my Car . Not sure of the ID on mine i haven't taken it out yet .

[@RobertDIY]

I don't know. Are they trying to sell you an alternator without a pulley?

[@kanibis420]

They didn't mention with or without pulley . Most junkyards asked for ID # couple didn't . Auto parts stores didn't ask at all .

[@RobertDIY]

+Rastafari Jah ok 🤔

[@RojoFrijol]

What about a 91 vehicle altenator? Doe it have a voltage regulator.

[@RobertDIY]

I'm sure it does.

[@5150of33supporters]

Is the voltage regulator the same thing as the diodes?

[@RobertDIY]

I don't know. Try Google.

[@dcole7092]

Good video Robert. I subscribed and like many of your videos. I am a first owner of 96 850 Turbo going strong. Ready to replace PCV system. In doing so will replace many parts while I have it a part, O2, temp, vac lines, throttle cable, starter, alternator, battery cable, fuel injector O rings, oil tube o ring, Any thing else you can think of? Do you have a web page or E address? Dan

[@RobertDIY]

I DON"T LIKE COMBINING big jobs together

[@eddysantos8204]

Robert I rebuild my alternator on my volvo 2006 s40 2.4i the car is running good but on the dash is showing the triangle and the battery what I should I do.

[@RobertDIY]

+Eddy Santos have the battery and alternator tested.

[@eddysantos8204]

Robert DIY, yes I did they seen to be working Allright

[@eddysantos8204]

I was thinking buying a new alternator but they really expensive.

[@eddysantos8204]

Is showing on the dash power system service urgent plus the battery and triangle after I rebuild the altenator.

[@RobertDIY]

+Eddy Santos you had them tested where?

[@sebastianrasmussen2689]

how did u get the cover past the intake?

[@RobertDIY]

I just jammed it down enough to slide the regular out.

[@sebastianrasmussen2689]

@@RobertDIY thanks, im gonna try tomorrow 😅

[@lizzieramirez114]

+Robert DIY srry about that, the replay button sends me straight to the video and when i type your user name on the message it comes out like a completely new one...

[@RobertDIY]

Lizzie Ramirez So, if you want a constructive reply, you'll have to fill me in on the details. Because when I go to KZbin, I go straight to a comment page that doesn't show me video messages, only messages and replies.

[@QueensNativeNYC]

Cool

[@RobertDIY]

Thanks for watching.

[@j.a.mcbean.4043]

Great

[@RobertDIY]

thanks for watching

[@EqueezHQ]

Hello robert i changed My alternator on My volvo 740, and when i switched it The car wont turn of i can take The keys and walk away and its still running. any ideas why its doing that?

[@RobertDIY]

***** Bad ignition switch.

[@lizzieramirez114]

+Robert DIY its a 2005 hyundai accent

[@RobertDIY]

Lizzie Ramirez Since you did NOT reply to our old messages, I have no idea what you are talking about.

[@wjhandy]

"Teach a man to fish" at it's finest

[@RobertDIY]

wjhandy Thanks, and thanks for watching.

[@cool2pe]

the 7 thumbs down have alternator repairshop :-)

[@toddhayslett8269]

I had a 1991 dodge dakota the aholes at dodge put the voltage regulator in the computer. So I once had to get an entire computer for a .50 cent regulator. I got the computer and you could clearly see where someone had dug out the potting and resoldered the new regulator in...... $300 (rebuilt).... after that I knew if it went bad I could fix it for .50......

[@RobertDIY]

+Todd Hayslett wow!

[@kennethbaker9837]

This is not a rebuild , it's just a regulator repair . To rebuild you have to replace the bearings, brushes and regulator.

[@RobertDIY]

Thanks for sharing.

[@jamesverschoor3745]

You cannot shock yourself with a 12V system. Only on the coil packs or spark plugs can you shock yourself .

[@RobertDIY]

Thanks

[@gulabkeerio1930]

v bice

[@RobertDIY]

sup

[@fordwindsor351]

Why couldn't just the negative post be disconnected from the battery ?

[@RobertDIY]

The power lead to the alternator has a direct connection to the positive battery terminal. If you put a wrench on the bolt that secures the cable to the alternator, and you hit some other metal with a wrench and create a ground, you'll learn a new lesson about car wiring. I apologize, I thought I explained that.

[@fordwindsor351]

If the neg post is disconnected, no current is able to pass through anything, every repair manual I have read always says to just take off the negative alone.

[@RobertDIY]

Ok, do it their way. I usually only disconnect the negative. Let me ask you this... what do you think would happen if you took a wrench, set it on the positive battery terminal, then connected the other end of that wrench on a metal part of the motor or frame?

[@fordwindsor351]

Directly from the battery you would get some action( in some cases none hough, it depends) but in 99.99% of the time the issue is when someone forgets to take off the neg and touches anything ( away from any battery posts) but again, once the neg is disconnected there is no harm is touching , unhooking etc.

[@gooddad1975]

Warning warning warning lol disconnect battery cables lol

[@RobertDIY]

gooddad1975 LOL, you got that right.

[@g.h.1472]

Ill be very sure to unhook both sides to battery! thanks

[@stacydalebarendse3978]

This vid is partial fail. It could be a bad rectifier with bad diodes. Coverts direct current to to alternating current. It easily removalable Not to expensive.

[@RobertDIY]

So what are the odds?

[@stacydalebarendse3978]

@@RobertDIY If car has Alt gauge in car and shows nothing it is bad volt reg. If barely charging then rectifier. Possibly both if charge wire to battery hits Alt casing. Also both could bad cuz there is a chip in varnish on windings should be taken all apart for inspection and cleaning. Sometimes chip can be fixed with nail polish. Some cases it may just need brush replacement.

[@xChromerSatanasx]

I got mine at wrecking yard , but I didn't pay 8$ I stuck it in my pocket hahaha.

[@RobertDIY]

If it fit in your pocket, they probably would have been to scared to charge you for it. 💪🏾

[@xChromerSatanasx]

@@RobertDIY thanks man you ROCK, I installed mine and it worked perfectly. It took 5 minutes to remove

[@RobertDIY]

Nice.

[@venenop.4147]

Talk too much no action moved to another video before I waste more time

[@RobertDIY]

Perfect.

[@jose456891]

Yet you still left a message....😒