alternator only charging 11 volts

Did André Bloch or any other mathematician receive the Becquerel Prize? Volts.... First, When a voltage regulator fails the battery light or gauge will come on indicating a charging issue. Nevertheless, you should definitely clean those connectors and terminals every now and then. There are two things that you are looking for. Still using the battery. If you've had the alternator bench tested and its ok I would check all wires and connections for continuity and resistance. The car has 72000 miles on it. There are a few things that can cause an alternator to not charge anymore. My wife's '76 LTD carried 14.8 volts for over 20 years. You say brand new battery. (Such as Andorra). Started it and put volt meter on alternator and watched it climb up to 13.5 volts over about 5 seconds after start, read 13.35 at batteries. Does low alternator load create more heat? The most common reason why your car is not charging is actually because of a worn-out or damaged alternator. If the reading is more than 2 volts higher, that could mean that your alternator is … Batteries tested high 12 volts. Is there a better way on a 2010? For some, a constant 13.6 volts is an indication of a problem. Measure the voltage across the battery and the big bat alternator terminal to alternator case. the pcm does not control alternator current.. this only monitors the alternator..the internal regulator controls the alternator current ..the voltage generated is also controlled by the internal regulator of the alternator.. your problem of the battery losing charge is , because at rest no engine on , the battery is being discharged.. This means that there is an issue with wiring. Also the voltage at the battery and the voltage at the alternator should be within 0.5v of each other. Its a brand new top of the line battery and I am ashamed to admit that I have tried several different alternators that all should have been good, The one in there now tested good out of the car. Battery at 13.7 volts disconnected, 14.7 with engine idle or revving, while various small intermittent problems suggest voltage is low? Driving with scangauge it goes from over 12volts to 8.4 then dies. I am still having charging problems and now I think it's the wiring from the alternator to the fuse box. The battery is only a few months old, so I check the voltage. new battery, now at 11.5 volts. When the engine is iding (about 750 rpm), the voltmeter shows about 11 volts. Have a 1991 dodge ram d150 with a 5.2l. My point is that lack of an output reading in the VCDS block 16 leads me to suspect the generator internal regulator is not working, or is not getting a signal to start. What I just did was test my ground strap, I put the positive lead on the pos terminal, then instead of placing the negative lead on the negative terminal i followed the ground strap to the bolt on the chasis, and the reading was jumping from 0-11.60 (almost battery voltage) and everything inbetween. The voltmeter should slowly climb towards 13 volts, then after a minute or so be up to 13.6-13.8. Finding the tempo of Bruckner's "Chromatische Etüde" in F Major. If the voltage stays above 11 volts, the battery is good and healthy. Sounds like a dead alternator to me. That is the problem, and what does the signal look like on a quality voltmeter? I had a couple of 'red battery warning messages and noticed that the car seemed sliggish on cranking. I have a 1987 mercury sable ls with a 130amp alternator. Ideally, the GM alternator should be putting out anywhere between 13.5 and 14.5 volts. 2002 Moomba Outback V 310 Indmar TBI I replaced my alternator because I kept draining getting low voltage. 7. It should be covered by the battery warranty. Do spell targets know they were targeted if they make their saves? I have tested both batteries and they are fine. For a 12 Volt battery to be charged the alternator needs to put out roughly 13.8 to 14.8 volts. I have the dash lit with trouble lights and I thought it was the alt, But when I took it out and had it tested it passed, Put it back in the car and output is 11.4 volts where do I look for the problem? Does this mean the alternator is good but the battery is just not getting enough power? Is it weird to display ads on an academic website? Revving the engine can top me out at 13V. ? For example the battery reads 12v and alternator … Does anyone know how to check the signal from the car telling the alternator to putout? A car battery consists of 6 cells connected in series. Would an astronaut experience a force during a gravity assist maneuver? And on what setting on the meter? Place the red lead on the positive battery terminal (if possible dig it into the battery post, not the terminal). The 2012 Chevrolet Impala has 1 problems reported for alternator charging 15 volts. 2002 Moomba Outback V 310 Indmar TBI I replaced my alternator because I kept draining getting low voltage. Stack Exchange network consists of 176 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. My wife's '76 LTD carried 14.8 volts for over 20 years. Ammeter is showiing discarge. A single lead-acid cell starts to charge at anything over 2.25 volts. rev 2021.2.9.38523, The best answers are voted up and rise to the top, Motor Vehicle Maintenance & Repair Stack Exchange works best with JavaScript enabled, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site, Learn more about Stack Overflow the company, Learn more about hiring developers or posting ads with us. You may have a short-circuited cell in the battery. can you see what the vcds block 16 is saying related to load? I have a 93 Trans Am that I recently bought and it charged at 14 volts on the meter in the then one day it was turning over really slow and saw that the battery was only charging at 11 volts while running tested it with a voltmeter so I bought a new alternator and then it was fine again until we hauled it down to … Only ever replaced 3 batteries. Preform the same test with the positive side. There are two things that you are looking for. When my battery was really flat it would only register a few volts. That's less then battery state of charge , Battery stat of charge should be 12.6 volts , when charging with a volt meter you should see 13.1 to 14.1 volt at the battery posts . The engine cranks over slower than normal but still starts, but the voltage never reaches nominal level. A dead Alternator will look like this... You will see only battery voltage , in fact only the STATE of Charge of said battery, 11 to 12.6v. Anyways i installed this new alt and its also 100amp alt which im aware only does about 30 amps at idle but i have had no problems with charging for the entire time i had the car and system in it until about 6 months ago when i noticed the alt was probably going out. the charging system is only charging at 11.52 volts. The car will start and is charging 14 volts then for no apparent reason will drop to 11 volts then back up to 14 volts. what happens when you ground the meter on the battery negative? I was listening to the car radio while I was doing an oil change and some other stuff for about an hour. I also have a 1700watt hifonics brutus amp with 2 12's hooked up to it. Alternator misconnected, what adverse affects. Charge Mode The BCM will enter Charge Mode when ever one of the following … Hi galingong, how could the alternator be dead if it's outputting 14+ volts from the positive nut? This improved my car 100%, everything in the car is controlled by electronics, now that it has proper supply its great. Why we still need Short Term Memory if Long Term Memory can save temporary data? I figure the brake light is on because the ABS system has always had a tough time functioning at 12 volts. Voltage also same on both wires on plug at back of alternator. I said hang on, let’s check it out. I used a charger to charge the battery. Can a country be only de jure sovereign ? Is there any other way to access the n-th element of a BlankSequence x__? The battery is still only charging at 11 to 12 volts. How do I ask people out in an online group? Under that and the car installation and battery isn’t getting enough electric power. Quote Reply Topic: Battery not charging but alternator sending volts Posted: Jan/13/2013 at 8:39pm I recently bought a platform buggy made from a 78 cj7 with a 304 amc 5.0 and 3 speed tranny and it didn't wanna charge te battery the alternator has been tested and is sending 14 volts of direct through the charging … There is only one relay and it is behind the grill revitted to the bumper rail. I replaced the alternator with one that I got from a salvage yard (to save money) but it is still over charging at the same voltage. And does that mean my alternator is outputting good power? Any help would be great whether its doing … No problem. If the voltage dips below the optimal range, then the regulator kicks in to get the alternator to make more voltage. recoverable, or replace? With the battery warning light off, standard charging current as measured at the alternator B+ wire should be 10 amps or less, and charging voltage should range between 13.2 to 14.8 volts. But, as you’ll see there’s no special skill needed. BECOME A MEMBER. Car will run with the battery unplugged. For some alternators, it’s normal to see as low as 13 volts. Just installed a new Chevy 350 in my truck, went to break it in and my voltage gauge was reading 11 volts. Started it and put volt meter on alternator and watched it climb up to 13.5 volts over about 5 seconds after start, read 13.35 at batteries. Even so, the shaft bushings and brushes are wear items that don’t last forever. The charging voltage should be between 13.9v to 14.4v. Checking the volts at the alternator netted me 13 volts and change. Why can't alternators provide full current at idle? I have a 2006 Buick LaCrosse with the 3.8 L motor. Turn on all the loads (blower on high, headlights on, rear defrost on, and so forth). ... Autoparts and the battery seems good but the system is only charging at 12.5 volts. Voltage comes and goes. I order a new alternator and put it in tonight. How did old television screens with a light grey phosphor create the darker contrast parts of the display? If the increase in the voltage is less than 1/2 volts, either the alternator or wiring is faulty. If the fusible link from the solenoid is no good will it prevent the vehicle from starting or just cause a charging problem I have a charging problem ... REPAIR GUIDES. If the alternator displays more than 15.5 volts, it is overcharging, which means the voltage regulator has failed. Also the voltage at the battery and the voltage at the alternator should be within 0.5v of each other. Batteries are about 2 years old and have always cranked the truck over good and fast. Go get it tested at a reputable alternator rebuilder in your town. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Normal charging voltage can vary from 13.5 to 14.5 volts or even higher depending on the battery’s state of charge, temperature and electrical load on the alternator. Over-charging is caused by the voltage regulator driving the alternator too hard. I was also skeptical. VW TDI forum, Audi, Porsche, and Chevy Cruze Diesel forum. If this is the case, it only means that the alternator is not charging, but does not reveal why. The bolt was rusted. When your alternator is not charging, the most common causes are worn carbon brushes inside the alternator, a damaged alternator, a broken belt, a faulty fuse, or a wiring issue. Any help would be great whether its doing some wiring or buying a different alt to increase voltage. site design / logo © 2021 Stack Exchange Inc; user contributions licensed under cc by-sa. An alternator should put out between 13.5 and 15 volts of power. Can the illusory duplicates of Mirror Image be destroyed via area of effect spells? Anything between 13.8 volts and 15 volts is safe. Motor Vehicle Maintenance & Repair Stack Exchange is a question and answer site for mechanics and DIY enthusiast owners of cars, trucks, and motorcycles. If the voltage is higher than that examine all the negative cabling for problems. What is the term for describing the maximum ramp inclination that a vehicle can clear? I installed the new alternator and it still is putting out 11.8 volts. Only ever replaced 3 batteries. Computational Complexity Of Breaking Information Theoretic Security. Truck running, warming up, voltage dropped over about 5 minutes to 12.41+/- volts at both batteries and back of alternator. Hooked up a scan tool, saw that the desired voltage was indeed 12.7 volts. A reduced output may be a sign that the alternator is failing, but the drive belt and wiring should be inspected before replacing the alternator. 5. On this 98 ford f150 customer changed out the alternator a few times and still same results. It switches when the Main battery is charging over 13.4 Volts Problem I have with mine is the Charge is never over 13Volts ( when engine is revving) I would expect the Altinator to be the original on the vehicle so is 11 years old. Sent it to the crusher about 5 years ago. Continued driving will discharge the battery and is not good for overall battery life and condition. The voltage seemed to get worse with long runs down the highway after the engine bay heated up. The connection was corroded very badly -- keep your grounds CLEAN. Place the black lead on the bad post of the alternator. This can be caused by bad grounds from the alternator to the battery, alternator to body , Alternator to regulator, battery to engine , battery to body. I have a 1987 mercury sable ls with a 130amp alternator. Without a voltage regulator, an alternator may put out up to 250 volts. I have tested both batteries and they are fine. The Gen light comes on when the output voltage doesn't match the battery voltage. It only takes a minute to sign up. Come join the discussion about performance, modifications, troubleshooting, TDI, maintenance, and more! Are there any 3rd level spells a Lore Bard could pick at 6th character level to provide food and water to the party? This is enough to destroy the car's battery and electrical … On checking the battery voltage was low - 11.8V engine running. Today I will check the grounds and wiring. Norton detects intrusion attempt from virtual machine - how is this possible? If I was unlucky I would get the car started and then the auxiliary drive belt would break under the strain of running the alternator … The Gen light comes on when the output voltage doesn't match the battery voltage. The charging voltage should be 13.8 to 14.2 volts. Alternator belt tension is correct and belt is in good condition. Why is new alternator output ranging between 11 1/2 and 12 1/2 volts? For a better experience, please enable JavaScript in your browser before proceeding. The Alternator can shut down, and 2 pins on the Alternator, will measure at battery voltage (12.volts) the ALT, lamp pin will be less, as it glows the dash lamp. Alternators can not charge at 10, 10.2, 10.7, 9, etc. There's two possibilities for this condition. Just went outside, truck has sat for about 2 hours, batteries at 12.45 volts. Anything between 13.8 volts and 15 volts is safe. Look, one more stab here: measure the voltage between engine block an chassis, it should be zero at all times. When my alternator gave out, it was replaced with an over the counter 105amp; it was good until it started to only give 11.0amp to 12.5amp I found the original 120 amp alternator, rebuilt it with the above parts and now pushing 13.5 to 14.0amp at start up Just a though If you are measuring 16-19 volts at the alternator then we can assume that it is working. If you've had the alternator bench tested and its ok I would check all wires and connections for continuity and resistance. A weak ground can confuse the electronics and create seemingly unrelated issues. 1) Is my method of testing alternator output correct? I also have a 1700watt hifonics brutus amp with 2 12's hooked up to it.

Google Doodle Halloween 2016, Frozen 2 Rumbling Rock Game X2 Meaning, Calories In Chicken Wings With Skin, What Home Remedy Keeps Birds Away?, Executive Summary Report Example, Sowing The Seeds Of Love Wiki,