Alternator Diode Autozone

When to Replace your Alternator - AutoZone Car Care - Duration: Alternator whistling,whining noise diagnosis,ripple,diode pack test in BMW 2008 Honda Odyssey alternator whine - diode?. A Ford 3G integrally regulated alternator is the best choice for replacing old 1G externally regulated alternators on amped-up muscle cars. If you see higher readings, chances are the alternator is good (more sophisticated testing equipment is needed to detect an open or shorted alternator diode). Streetwiseguy said: Check the voltage from the alternator output wire to the case and see what you have compared to the battery. They have heat transfer grease which keeps them cool. Alternator diode packs can also be quickly checked. The bearings, field casing, rotor, rectifier, stator, diode, regulator are all 100 percentage new; not remanufactured. A condition like this will still output to the battery as near normal but not cut off the circuit when engine is shut off therefore causing a battery drain back through the alternator diode short to ground. Chevy Alternator Wiring Diagram. There is a Q&A on each of these pages to get a quick answer to your questions or to leave any feedback for our site. So i go get it checked at Autozone and it comes back that I have a bad diode and I need a new alternator. I went through two NAPA alternators back in the day also with my Hardbody truck. Bring your Alt in, and they test it. Had them check the alternator - Result said bad diode. NEW Discount Starter and Alternator Replacement Alternator Rectifier Diode Fits Denso 220 Amp IR/IF Alternators 104210-6001. Finally, the alternator completes this cycle by charging the battery. The alternator replacement cost can be quite high, with prices running between $133 and $915 for a new alternator. other than changing the voltage regulator and brushes. You are responsible for verifying and complying with proper shipment requirements of the carrier. That was in backwards as well and we ended up putting in another battery and starter this time correctly place. Can someone tell me what the original AMP is and where I can buy one that won't keep dying on me?. Was recommended to install this diode to prevent feedback into ignition. Strange noises, stalling, and dim or flickering headlights can all be signs that your alternator or connector are failing. The regulator, diode block and alternator were one package so they needed replacement. When one or more diodes go bad, the alternator can cause all kinds of problems. Test voltage across the battery terminals with the engine running. It would frighten you if you saw what goes on in some of these high - production operations that rebuild parts. 0 Mustangs: Never, never disconnect an alternator from the battery with the engine running. The Alternator on my 1992 Chrysler New Yorker Fifth Avenue is Undercharging, according to autozone and orielys its only putting out 30 amps this is what i've done so far. Fig 5 - Alternator Leakage Current To check alternator diode leakage, connect the multimeter in series with the alternator output terminal when. GMC MOTORHOME. My battery is good, is a new Optima red top, my alternator is less than a year old and I took it to AutoZone to have it tested, it came out ok, diodes and voltage regulator. AutoZone manager trying to mount the alternator another store sold me, and then told me was bad after testing it themselves. My thought is, if there were CS-144 equiped 6. Securing OE certification requires strict adherence to stringent precision and performance criteria. Eventually, the diodes will overheat and fail. The following symptoms should give you an idea of what's gone wrong, but. 9 v and it was all over the place, up and down. Here's some info I've been exchanging with SoS and Cantrell. Alternators are actually 3-phase A/C generators. Alternator parts can be hard to obtain at times and we have made it easier for you to get your hands on them, along with starter parts. Diode leakage can kill your battery over time very quickly as it puts an additional draw on the battery when the car is off. Your order may be eligible for Ship to Home, and shipping is free on all online orders of $35. But sooner or later, the alternator's going to run dry, and that'll leave you with a new hole -- in your wallet. In most cases, this means replacing the alternator as a unit, although I know people who have fixes individual diodes on the rectifier boards. Then start the engine and check for increased voltage readings as shown above. This kind of problem can be diagnosed several ways. com/batteries-starting-and-charging/alternator-diode. Original alternator went kaput at 61k miles. Alternator Parts, alternator brushes, alternator regulaotrs, alternator rectifiers, repair kits, high amp alternator parts, chrome kits. Take it back to work immediately and it sits until I go to lunch, which the light still came on. So I was just curious of this, thought maybe we could post down some symptoms. Adapter for the Conversion of SI to CS Series Alternators. Any simple diode will exhibit a 'front-to-back' ratio since they are designed to allow current to flow in only one direction. A condition like this will still output to the battery as near normal but not cut off the circuit when engine is shut off therefore causing a battery drain back through the alternator diode short to ground. If the alternaotr is putting 14. So net net, the Autozone alternator is $15 more expensive if you return the core. in the alternator. (battery is a year old, duralast from Autozone). Six months later that alternator died. Securing OE certification requires strict adherence to stringent precision and performance criteria. To get the car running, I bought the. I live near a 24/7 Autozone and go there quite a bit for supplies. They were primarily used on vehicles between 1975-1985. This rather suggests an alternator that is getting ready to fail. With a few tools and about an hour you can swap it out yourself --. Checking the alternator, he said the output was fine, but his little checker said an internal diode was bad inside the alternator. Ask a customer service agent online or in store about diodes or other alternator parts. Kia Sedona Kia Issues New Alternator to Replace Weak One - 69 reports. The alternator has the right amps and I've checked the battery and the tightness of the alternator belt. make them take it off. The alternator is part of the electrical system of your vehicle. Put a bearing/diode kit in it & have a little more charging capacity in an alternator that should have OEM durability. Your cheaper, but better than the 110 alternator you have is a 140 amp available at Autozone or Advance Auto. With the belt(s) removed, try turning and laterally wobblilng every driven pulley to see if you can find a component going bad. Commonly used to replace generators on tractors with the 10Si series alternator. PART 2- Testing the continuity of the alternator's output wire (to the battery) with the multimeter in OHMS mode. The brown/yellow wire from the harness goes to the plug where Bill shows the diode wire. Order Alternator Diode Relay for your vehicle and pick it up in store—make your purchase, find a store near you, and get directions. New alternators versus rebuilt alternators. I'm trying to figure out what could cause this. Everything went together easily. Diode leakage can kill your battery over time very quickly as it puts an additional draw on the battery when the car is off. All this points to marginal output, and a diode is the first suspect. Search using model number, interchange number, part name or number, vehicle year/make/model, etc. Bad diodes happen (more likely to go open than short) but they are something I have never actually seen in my 35+ years in thee shop. I went to Autozone and did a onthe car alternator test (bc my volt meter reads low). your coments please. Checking for a Bad Diode. First, the battery delivers a jolt of electricity to the starter. If you notice the battery indicator light on your car’s dashboard, don’t ignore it. So, if you're having alternator trouble call them up and see if they can rebuild it. I have bought wheel cylinders from Autozone and have worked fine so far. The alternator still put out over 60 amps when reved up. When the alternator loses capacity or fails, the electrical systems will only stay on until the battery's reserve charge is depleted. We at Alternator Starter Rebuild Kits truly want to turn you into a rebuilder and send you the starter and alternator parts in a box. I have a week battery, I went to Autozone to buy a new one on Monday but the guy asked me to re-charge the old battery and save come money and thats what I did. Run the red wire to the B+ stud and run a switched wire to the the white wire. any other possiblites? such as other years or other alternator just died autozone wants $200!!! - JeepForum. If the stator diodes are OK, then the commonest reason for a problem is the voltage regulator. Still sits at 12. Harness allows new style (CS Series) alternators to be used in older vehicle applications (SI Series). They can check it free, & usually pretty accurately in my experience. For sale today is a new alternator from autozone I sold my tahoe never installed. Let's talk also about warranties. The purchase, shipping, and return were all hassle free. My experienced with bargain priced electrical items that are 'new' has been bad. The alternator also keeps the battery fully charged, providing the power it needs to start the car. Chevy Alternator Wiring Diagram. See more for Plymouth Pb300 1975-1978 Standard D-20 Alt Email to friends. (Or Terminal Post if your vehicle is so equipped). He told me that they were the same. You can find the best alternator diodes for cars and trucks when you shop online or in store at AutoZone. (and this is on GM vehicles-- I dont know about other brands). See more Standard Motor Products Alternator Diode D-2n Email to friends Share on Facebook - opens in a new window or tab Share on Twitter - opens in a new window or tab Share on Pinterest - opens in a new window or tab. This fits your symptoms. Product Description TYC heavy-duty alternators are built brand-new, with no recycled internal components. I purchased this alternator, due to its low cost. Stay with the parts brand your General Motors vehicle came with and get the quality you know and trust with ACDelco Starters and Alternators. Our huge variety ensures you will find the alternator you're interested in. Shop our selection of Alternators Parts and Car Generators, including serpentine belts, alternator brackets and more. Test Output Diodes and Diode Trio, replace if needed. Before about 1980, there were no fusible links on alternators, but after that it is common practice to have a fusible link between the alternator and battery to prevent fires and wire burning up in the unlikely event that someone installs a battery with the polarity reversed or if a diode in the alternator fails. You need to service your customers. Autozone alternator vs. This makes substitution possible, after changing the upper mounting bolt to one with an 8mm X 1. This is the speed where the internal sense circuitry connects the battery to the voltage regulator and turns on the alternator. Wires within the alternator cut through a magnetic field; this in turn induces electrical current. Not sure about the 96 but, voltage regulators generally have to do with the alternator. ) The THREE-WIRE advantages are even more important in recent years–More powerful alternators are often installed on Hot Rods and they must support a more power hungry electrical system. Diodes in alternator keyword after analyzing the system lists the list of keywords related and the list of websites with related content, in addition you can see which keywords most interested customers on the this website. Remanufactured — Not all car parts are suitable for remanufacturing, but alternators are. (and this is on GM vehicles-- I dont know about other brands). Twenty years ago your only choice was a new alternator from the dealer or a rebuilt alternator from the auto parts. Over the years many farm tractors have been fitted with the 10SI alternator. However, a malfunctioning or damaged alternator diode can cause your battery to die overnight. I have a 2004 F250 SD 6. com autozone. Securing OE certification requires strict adherence to stringent precision and performance criteria. This makes substitution possible, after changing the upper mounting bolt to one with an 8mm X 1. How to test your alternator. If you recently replaced the battery but it keeps going dead, you probably need a new alternator. A car alternator needs to be putting out at least 13-14 volts (ideally between 13. So last week the alternator dies again. Disconnecting the battery when the car is running can cause loads on the diodes that will cause premature failures. Failed diodes are indicated by AC voltage in DC electrical system. ) Bad diode(s) in the alternator - one or more diodes have open circuited and are causing the voltage to drop off as load increases. New alternators versus rebuilt alternators. Get deals on automotive parts, truck parts and more. The 10SI has three terminals (including those with a 1 wire regulator). Might have been from the welder as 1fb said. Have grounded the alternator and purchased a new alternator. CS-Series alternators use diodes within the rectifier plate known as avalanche diodes. Whip out your multimeter and turn the selector knob to VOLTS DC. 4 volts out at Idle then all should be good. If the diodes are bad, I don't know how big a job it is on your model. When to Replace your Alternator - AutoZone Car Care - Duration: Alternator whistling,whining noise diagnosis,ripple,diode pack test in BMW 2008 Honda Odyssey alternator whine - diode?. When the engine is off, the battery powers the lights and accessories. AC voltage creates electrical “noise” that can confuse electronic modules and digital communications. Before about 1980, there were no fusible links on alternators, but after that it is common practice to have a fusible link between the alternator and battery to prevent fires and wire burning up in the unlikely event that someone installs a battery with the polarity reversed or if a diode in the alternator fails. I purchased a new altenator and installed it but the battery light on the dash is still on. (It looks overly difficult to replace once it’s assembled and in the car). This provides the voltage to create the magnetic field to generate the voltage when the alternator is rotating. All manufacturer names, symbols, and descriptions, used in our images and text are used solely for identification purposes only. quality AutoZone-remanufactured alternators, plus a. 0L Power Stroke Diesel - Need a alternator diode trio for my '04 - I have a bad diode trio on my alternator. (It looks overly difficult to replace once it’s assembled and in the car). One-wire alternators are also used by people in the performance car field to help make the car lighter as there are fewer wires to add weight to the vehicle. com is a product authorized by or in any way connected with any vehicle manufacturers displayed on this page. Pay Less for Alternator Parts. 95 # C1650, Repair Connector, Voltage Regulator, Nippondenso (Denso), Mitsubishi, and Hitachi Alternators, 3-Pin Oval Plug. Twenty years ago your only choice was a new alternator from the dealer or a rebuilt alternator from the auto parts. Disconnect the alternator lead And start the engine. Re: Single wire alternator/conversion in reply to john in la, 04-06-2008 07:44:07 One on the reasons I asked the question was because I contacted a couple of places the have the conversion kits and asked them if it was a 1 wire or a 3 wire alternator and they both told me a 1 wire. The good news is that replacing a factory alternator with a high output alternator, in and of itself, isn't going to damage the rest of the electronics in your car, even if the new alternator is much, much bigger than the old one. Was recommended to install this diode to prevent feedback into ignition. Stock type Alternator and Starters We will try to ship from the location nearest you. The alternator replacement cost can be quite high, with prices running between $133 and $915 for a new alternator. Often, such alternators will pass the "tests" you can get done at the parts store. They are usually very reasonable price wise. But a charging circuit blown fuse, a broken fusible link, a failed diode in the alternator's rectifier assembly, even a worn out bearing will affect charging system operation. With the belt(s) removed, try turning and laterally wobblilng every driven pulley to see if you can find a component going bad. We also carry a wide selection of voltage regulators. Commonly used to replace generators on tractors with the 10Si series alternator. The S terminal should be connected to the Bat (large output) terminal with a short #12 wire. Our knowledge and expertise cannot be matched. Then if one or both of them are bad you can decide on what you want to do. I forgot about a single diode possibly being bad. the final paragraph gives a way to test an alternator for a leaking diode using a multimeter on A. He put the battery in backwards causing the starter to blow. VR on the original alternator was 1197 311035 and bosh replacement he sent was 1197 311027. If you've never rebuilt, tested or done any sort of alternator work I would suggest finding a small mom and pop auto electric shop and having them fix it and test it. Specing the Right Starter & Alternator Upfront Pays Big Down the Road. Charge light never came on. Where is a good place to get parts? I have been warned about Advance and Autozone alternators and my experience is that they are not very reliable. When you can fry diodes out of an alternator the only reason is high loads. Bearings are validated to OE standards and loaded with premium OE-standard lubricants. However, in haste to repair, I got the Autozone alternator. I went to Autozone and did a onthe car alternator test (bc my volt meter reads low). air cooled, brands carried by AutoZone and more. Six months later that alternator died. The Si stands for Systems Integrated" which means the alternator has the voltage regulator built inside the alternator. All electrical parts in the automobile are compatible with direct current. The alternator replacement cost can be quite high, with prices running between $133 and $915 for a new alternator. Could be a loose belt. A rear support bracket is recommended on the CS alternator conversion if a rear support bracket was on the SI unit being converted. But alternators have brushes that wear out over time. Late model and import high amp alternators are custom made to give you unsurpassed performance and durability. • A single wire with no diode is generally, but not always, an AC only system • A single wire with a diode is generally a DC only system. We stock light duty and heavy duty starter motors and alternators, from city runabouts to the enormous heavy duty earthmoving machinery of South Africa’s biggest mines, we have the units you are looking for. I'm getting really good at pulling alternators. Charge light never came on. Car & Truck Alternators and Starters Your vehicle's battery supplies power to the starter. Most that I have gotten have had bad bearings in them and used diodes. Checking the alternator, he said the output was fine, but his little checker said an internal diode was bad inside the alternator. Because your car often will not start when the alternator is dying, an alternator that's on its way out can easily be confused with a dying battery or starter. put new alt on new battery still no charge coming from alt. So i go get it checked at Autozone and it comes back that I have a bad diode and I need a new alternator. Autozone swapped it out with out issue again. They do not require an ignition activation wire like standard alternators. 5 Signs of a Bad Alternator. Buy online for free shipping with next day delivery or pick up your parts in an AutoZone near you today. Each warranty represents the exclusive remedy for any product defect or failure and our total liability part we warrant. If you can get AutoZone or O'Riley to test it then you stand a better chance of finding the problem. Was recommended to install this diode to prevent feedback into ignition. Take it back to work immediately and it sits until I go to lunch, which the light still came on. Usually its just the brushes, but the voltage regulator and diode pack and not hard to replace either. Alternators use diodes to rectify alternating current produced by the alternator into direct current. I went to Autozone and did a onthe car alternator test (bc my volt meter reads low). CS130 alternators use 130mm (5. But good to know I can get one there and what to look out for. Even used scotch brite pad on the nuts and connectors, put dielectric grease on my all alternator connections too. You can use either one. Thanks aam, I used a bosch regulator that came from a outfit in florida. Manufacture starters and alternators for racing and show cars. If the engine is stopped and it's not too complicated to get the belt off, you can turn the alternator by hand, it should turn freely and quietly with the minimum of hissing from. One of the most common problems on an aging alternator arise from worn out brushes. My Autozone (Duralast) alternator that the previous owner put in just failed (still looked brand new). 8 volts (14. If the reading is high, the rectifier is shot. All electrical parts in the automobile are compatible with direct current. put new alt on new battery still no charge coming from alt. I hope this helps people avoid wasting money on parts. I had a low voltage issue a couple weeks ago. First, the battery delivers a jolt of electricity to the starter. the diode opens, send 12+ to the alternator which causes the battery light to go out and the. To get the car running, I bought the. A diode trio is not used. Take the regulator off and look to see if they are new. Product Description TYC heavy-duty alternators are built brand-new, with no recycled internal components. Some have to be soldered in (hard to do), others just sort of snap in and also hold the brushes. Diodes allow electrical current to flow in one direction only, and are the essential part that converts alternating current (A/C) to direct current (D/C). Your car might die, but you may be able to restart it with a jump start. My local Autozone is great and they had me another one at no expense at all in about two days. We can test your car's battery*, alternator*, starter* and voltage regulator while they're still on your car Alternator tester autozone. I recently replaced my alternator with bad diodes with one of the shiny SoS alternators. But sooner or later, the alternator's going to run dry, and that'll leave you with a new hole -- in your wallet. When to Replace your Alternator - AutoZone Car Care - Duration: 5 Diode rectifier. This is a test that you can do with the alternator still in the vehicle and in this article I'll show you just how to do it. Test Your Charging and Electrical System. It is warranted for the lifetime of your patience removing and replacing the alternator with another one of theirs. The odds are that one of the 6 diodes in the alternator has an internal short. IAP and Centerline re manufactured alternators for an 87 Spider are priced about $220-240 including the core charge of $100 and Autozone priced at $140 including core charge of $25. An alternator charges the battery while the vehicle is running by turning mechanical energy from a spinning pulley into current. your coments please. You need to service your customers. Put it on an NAA, alternator wont charge. PART 3- Verifying that the alternator fuse in the fuse-box is not blown (if equipped). Twenty years ago your only choice was a new alternator from the dealer or a rebuilt alternator from the auto parts. When to Replace your Alternator - AutoZone Car Care - Duration: 5 Diode rectifier. Caution AC voltage in the car electrical system can lead to running problems and damage to sensitive electronic components, namely the DME control unit. com is a full-line DENSO distributor. I ended up trying several shops looking for my alternator. The only benefit to buying there is the life time warranty. This rectifier is actually a set of diodes arranged to act like one-way/check valves, the alternator actually produces AC current, the rectifier changes it into DC by only allowing the juice to flow in one direction. Ask a customer service agent online or in store about diodes or other alternator parts. Get deals on automotive parts, truck parts and more. Save on Alternator Rectifier Sets with great deals at Advance Auto Parts. air cooled, brands carried by AutoZone and more. there is a blue (or green depending on model and year) wire that goes from the alternator to the fuse box, then to the dash cluster to light up the battery light 3. Chevy Alternator Wiring Diagram. All electrical parts in the automobile are compatible with direct current. Some diodes are easy to replace such as most 70, 80 and 90s GM Products. Ripple is caused by a bad alternator, specifically a diode in the bridge rectifier. The alternator has a bad diode in the diode bridge in the alternator,this turns the light on,even though the alternator checks good,and is charging correctly,there is a bad diode,this diode ,along with others,changes ac voltage to dc voltage,if not replaced,it will start causing components to go out. com Diodes in the rectifier assembly of an alternator may fail by either opening or shorting. It's weird that the old batt triggered the alt diode failure. BUT when I do the A. Finally, the alternator completes this cycle by charging the battery. CS-Series alternators use diodes within the rectifier plate known as avalanche diodes. You can get the resistance using 'resistance wire' or a solid state resistor/diode. Most that I have gotten have had bad bearings in them and used diodes. Available in circuit board style or mini fuse style, which connects to mini fuse holders. autozone alternator test how to your battery before it fails this winter. The first I put in 2007, the second April 2010 and now the third June 2010. com autozone. I have a week battery, I went to Autozone to buy a new one on Monday but the guy asked me to re-charge the old battery and save come money and thats what I did. Run the red wire to the B+ stud and run a switched wire to the the white wire. all located in the alternator. Parts are just part of what we do. Buy Alternators, Generators & Related Parts - Electrical Systems online from NAPA Auto Parts Stores. Another common failure is the alternator bearings becoming dry or pitted, which causes a rough, growling sound to emanate from the alternator case. He told me that they were the same. This is the speed where the internal sense circuitry connects the battery to the voltage regulator and turns on the alternator. My Alternator test failed, it said "Diode Pass, Regulator Fail" Receiving no Charge, What does this mean? I took the Alt/Batt/Car (Car running) to Autozone to test it Had 12. With 6 Groove Serpentine Pulley. This system. It is neither inferred nor implied that any item sold by CARiD. So my alternator failed yesterday in my 2002 Honda Accord 4cyl. How to Repair Your Ford Alternator. Checking for a Bad Diode. This arrangement should keep the battery from going dead when the car sits (if you shut the switch off) - other wise you will need a diode in the B+ wire. DB Electrical ADR0257 Alternator for Delco 94 Amp 1-Wire 12SI Self Exciting Turn on GM Cars & Trucks 1984 1985 1986. They'll test the alternator on their test fixture and will be able to tell you if it's failed. Because your car often will not start when the alternator is dying, an alternator that's on its way out can easily be confused with a dying battery or starter. spraying on the alternator/pulleys all lead to premature failure. NEW Discount Starter and Alternator Replacement Alternator Rectifier Diode Fits Denso 220 Amp IR/IF Alternators 104210-6001. At maximum you can do is if your alternator ever went out, you can upgrade to a New one. Re: **** autozone (Alternator wiring q) use a dremel tool and cut a line down the middle and then use a flat head to get the screw off. First make sure that the vehicle's battery is fully charged. This is the speed where the internal sensory circuit connects the battery voltage to the regulator, thereby turning the alternator on. Without your alternator, there is no go. Still sits at 12. How-To: Replace an Alternator: Strapped for cash this holiday season? Replacing an alternator can cost you several hundred bucks at the local repair shop, but it's one of the simplest repairs you can do at home. There are several signs you need to watch for that may indicate your alternator is bad. Bosch has been a major supplier of new alternators to Original Equipment vehicle manufacturers since 1913. Defective alternator diodes can be de­tected by using alternator test equipment that measures the amount of alternating voltage (commonly known as "ripple") in the charging ­circuit. As mentioned earlier, the alternator is supposed to charge your battery when the engine is on. any other possiblites? such as other years or other alternator just died autozone wants $200!!! - JeepForum. All of the local BigName shops now test stuff for free. So I went to autozone and picked up some more fuses, and a new relay that matched the A/C comp one. Pre-Power Stroke Diesel (7. and the cases have to be heated usually to separate them from the stator winding laminations. They can check it free, & usually pretty accurately in my experience. 5 milliamps on the output with engine off. Put it on an NAA, alternator wont charge. Autozone tested my battery and said it was bad, probably due to a bad alternator. The large "BATT" terminal which gets connected to your battery positive. With the advancements made, the risk of explosion is minimized which is the usual problem of the old auto generators due to the centrifugal force produced as the armature rotates at increased rpm rate. Finally, the alternator completes this cycle by charging the battery. The purchase, shipping, and return were all hassle free. They are from autozone but hey they were $350. So, if you're having alternator trouble call them up and see if they can rebuild it. my alternator just went out on my 2000 i6 wj. On my car I can swap the alternator in 5-10 minutes, so I don't really mind that I'm probably going to have to do that every few. Which I proved already if you leave the grid heater unplugged then the alternator failures stop. Shop our selection of Alternators Parts and Car Generators, including serpentine belts, alternator brackets and more. Here is a list of my information I know in one post. Our Duralast Gold alternators meet or exceed OE performance and come with a limited lifetime warranty, so you can know that your battery can get the charge it needs. 4L equipped. But I remembered hearing about testing the alternator for AC and that would show it had bad diode (s) doing something and causing an electrical drain How to test an alternator for a bad diode. Do they have AutoZone-like places in UK?! What's it called? Over here, you can take an alternator in and they will bench test it for free. Might have been from the welder as 1fb said. In retrostect, having now done the research, I should have tried new OEM VR in the original Bosch OEM alternator and / or gotten a Bosch replacement.