The charging/battery system would function properly only if the resistance between the alternator output terminal and the TWO battery positive posts was ZERO. The way the 2-post VR works is by varying the ground to try and control the reference voltage. Jul 26, 2012 · Mopar1973Man's Dodge Cummins Articles - APPS Sensor Voltage Adjustment . so for the last 2 months or so, when i start my truck, my voltage stays at 11. Sometimes the battery connectors won't pinch down on the post because they are worn. Nov 6, 2017 · 2016 2500 4x4 Reg Cab SLT, Lux, Snow Chief Synergy Drag Link, 2507# payload Dec 12, 2010 · Load test each battery, if they check out then move on. All Voltage Regulator Type: Internal. The first thing I did was unhook all the original electrical connections from the alternator. The target voltage depends on the battery temp sensor reading (driver side) and hence vary according to the ambient temp. If you disconnect the red wire, the PCM thinks the alternator isn't putting out enough charge. , the slope of the V/Hz curve) is adjustable in the control. I see the 105 an 145 amp (19S1 12V 3-Wire) versions are same price. i was under the impression the 24v all had the bosch connector style, but my truck has the 3 post old design when removed it from truck. what would be the problem with the system?. Below is a picture guide on how to install it. I installed it with the Balmar 614 regulator, including battery and alternator temperature sensors connected to the 614. What is a normal voltage output for the alternator? Any help would be great, thank you Apr 20, 2017 · One reply was that most likely my alternator had to much A/C noise and was harming the ECM/PCM. When I plug the computer back into the alternator, the volts jump up to 16. Looking at the alternator, it appeared to be original and with 250k on the truck, it would stand to reason that it was just worn out. We have an 08 power stroke at work and its voltage is always around 13. , an industry leader in reliable power solutions for more than 100 years. 5 Cummins voltage problems My 98. 0 350. Voltage regulator needs replacing 2004. 73's Silver w/ black interior. Jul 8, 2024 · I never have to worry about paying for a new alternator or the voltage regulator, or getting a expensive pcm. 7 Quad cab SB, G56, 3. Aug 19, 2020 · Hello all I have a 2017 2500 laramie thars stock except a aftermarket market rockfod Fosgate stereo. Apr 6, 2010 · Viewing from the top down, wiring connected to the regulator is: alternator field connected to upper post, switched power, alternator positive (output). Alternator has 295K miles, as the rest of the truck. P0122 APPS Sensor Signal Voltage Too Low Still check the alternator on a test bench for Apr 4, 2016 · After my truck not starting at chick-ful-a this morning I took it to get the batteries and alternator checked. Sep 27, 2014 · you won't know anything until you put a meter on it and see what is going on. Nov 27, 2009 · Well today I replaced the battery so that I could use the truck and measured voltage across the battery while it was running and saw 18 volts. That added voltage drop results in a higher voltage output by the regulator. The paper also provides insight on how the codes should be interpreted based on the Apr 22, 2018 · There are 2 small wires to the alternator. It pegged the gauge quite a bit, but each time would return to normal. The alt should be putting out 14-14. Took an hour to install and had voltage immediately on start up. Then shutting the truck off and turning the key on (not starting the engine) the gauge reads a normal reading. 2 volts. New Or Jan 19, 2021 · Check alternator output on B+ wire running to battery 16A. But now the alternator is only charging to 12-12. 8) trying to top up the pass side battery, usually end result is a boiled over or exploding pass side battery Nov 24, 2011 · There are lots of other issues with batteries but high alternator voltage is seldom related to lack of battery capacity. Feb 7, 2010 · Alternator. They all need to be scape of the metal shiny and tight. I have followed mopar man's guide to testing it, but my multi meter only has 2 AC settings. 7, 6 speed, 4wd, deleted, 5 inch exhaust Save Share Feb 14, 2021 · I have a habit of always monitoring the battery/alternator voltage when I start/run my truck ('16 Ram 3500 w/220a alternator). You may have shorted and blown the fuse. I guess I need to update that article (updated!) Mopar1973Man's Dodge Cummins Articles - Voltage Regulator Mod Stock wiring acceptance, voltage is controlled to a maximum of 5% overshoot over nominal level. Less than 13. I only get like 10v while cranking and they are about 4-5 years old. If you have voltage the alternator is probably bad. It should be zero. This will happen 2 to 4 times at pretty much every startup even if it's warmed up then shut off for only 5mins. Sep 20, 2014 · I also am trying to test my AC voltage for noise, giving me another reason to replace the alternator. As long as the blue wire is hooked to 12V key on it should work. 0 400. 43V with the engine running regardless of whether the field windings are connected and 12. Aug 13, 2020 · The voltage at the start of my drive on Sunday was 13. 3V and I can tell after I unplug it as the truck fires up with 2-3 turns; my alternator only puts out 13. View all versions of this part. My driver's side battery didn't have a complete circuit to the alternator, therefore that battery wasn't charging. I installed a new alternator to make sure I didn't get a dud, in the stock computer, it worked for about 5 min driving at 13. 0 250. Nov 19, 2011 · So i got check gauges the other day and noticed the voltmeter was at 12. Jun 16, 2012 · I used a Powerprobe and a DVM, and I wired it EXACTLY as said on the external VR mod wired a 12v source to the top triangle stud on the VR and spliced another wire off of the top stud to the lower field stud on alternator, ran a wire from the other lower right stud on VR to the other remaining field stud on back of alternator, The VR is grounded good, like I stated I have a ground running from May 31, 2021 · The alternator provides the charging output and the PCM regulates the voltage. If you do not see the part you are looking for, please use our quote request form or call us at 855. 0 150. Dec 19, 2010 · Then voltage jumps right to 14+ for about 5 secs then back down to about 10 volts for 5 seconds and then back to 14 where it will eventually stay. i installed a system in a car this summer with 5 alternators and 10 batteries (all at 14. I've followed every thing in this thread, test showed bad pcm. 0v. 325/ 610 Cummins in an 05 Dodge QC/LB 4x4 SLT 6 speed G56 3. It is a 120 amp fuse. If I check it cold it cycles like this but when warm it seems normal. 0 450. Clean every damn electrical connection twice, replaced the batteries, pulled the alternator and had it tested (14. Is . so im hoping if i replace it my low voltage will be solved. 3v then dropped to 12. 2) and that wire was corroded at the Control the power output of your Cummins alternator effortlessly with the CPP Diesel Cummins Alternator Voltage Regulator Universal. Over the last 5 years the alternator has come on-line about 5 seconds after the truck starts. 2008 6. An alternator shop converted the new unit to external regulation ($86). Jul 27, 2020 · On old Euro cars with Bosch alternators (egg my old Mercedes diesels) which often produces a low voltage output at speed, and even lower output at idle, an option is to put a diode, which has a natural voltage drop, between the alternator case and voltage regulator. 8 volts after the truck is started and running. 7 has been doing weird electrical stuff intermittently. 2017 RAM 3500 Cummins with 440 Amp alternators option at only 500 miles from new showing intermittent low voltage on dash screen. 5v - 15v while driving which is the alternator output. The electrical is last major hurdle. 1971 Ford cummins project on 1996 Dodge chasis. Part # 5332604. Does not work with Bosch alternator!!! Fits Denso Alternator 1989-2002 The 2001 have plugin inste May 18, 2017 · I checked voltage at both batteries with the truck running and it was 12. Large variance between the two batteries can be caused by bad connections either on the cable connecting the two batts or the ground cables. The PCM sends a signal through this wire to tell the alternator when to charge. See full list on underhoodservice. Voltage behaviour now looks normal, after a brief test Oct 21, 2009 · The low voltage with the grid heater on is normal, and not the sign of a bad battery nor alternator. I didn't want to spend big $$ on a new PCM just for the voltage reg. Then I would need to cut the blue wire going from the alternator to the ignition switch. took alt out & tested shows good. 5 volts on the post of the port alternator where it connects to isolator. Mar 16, 2013 · The ECM controls voltage output from the alternator but is VERY rarely the charging problem. Getting continuity to pcm. 400 or so when the grid heater is cycling on and off. 5 could cook your battery and drastically shorten it's life. 8. 1993 W250, 4" TBE, CAI, Intercooler Tubez, Maxed Pump/afc delete, phatshaft 62/65/14, MG Diesels 5x14 Injectors, LPP @ 15psi, Timing to the head, A1 Studs, 3 Piece manifold, 6" lift on 37s, Crossover Jan 1, 2011 · The alternator is in the vehicles computer. Mar 29, 2021 When voltage drops below 13. Engine serial number (ESN) can be found on the engine data-plate, typically located on the engine rocker cover or the side of the gear housing. I have been stumped on what to do about it. I doubt it's the alternator. Mar 12, 2011 · I can't seem to find what is the correct alternator charging voltage but both of my newer 850 CCA batteries seem to respond better to an external charge. gettin code 41 thrown. 7 volts dead equal between the two. Cummins controls sense overcurrent on the neutral side of the alternator, so that the alternator, and all conductors are protected. 3525 : our knowledgeable inside sales staff will gladly assist you. Next day on Monday it was back up to 13. The automatic voltage regulator feature can be disabled to allow the use of an external voltage regulator. The first is, very simply, a gauge in your dashboard. I'm not getting 12v on the blue wire while it's running. Apr 22, 2019 · Sounds like your alternator/ voltage regulator is intermittent. On older vehicles, the battery light would turn on the alternator light when the alternator output or battery voltage dropped below a preset value. 9 cumming. I just checked the AC voltage at the 2 volt setting and it says my A/C voltage is 0. Do an alternator output test, use a carbon pile and load down the system. It should jump up (essentially max out) as the ECM will sense the lower voltage at the battery and bump up the alternator voltage. 5 volts, the regulator will apply current to the field and the alternator will start charging. Diesel Parts Direct has a huge inventory of new and remanufactured 24V alternators for Cummins diesel engines, organized by amperage for your shopping convenience. Mar 10, 2016 · One way to test your alternator's output voltage (crudely) would be to throw a multimeter across the battery posts with the engine shut down, then start it up and take another reading. Sometimes while driving it turns on the check gauge light and stole my voltage to like 8. Many vehicles have a voltage gauge – indicated usually by a graphic of a battery. This shows that an alternator with a 5/6 pitch coil will Sep 9, 2013 · The factory service manual will give you the specifics, but I'm guessing you don't have one. To test the alternator on the vehicle you disconnect the wiring from the back of the alternator, all but the main battery wire. Also the 14. Kind of stumped here. Jul 15, 2010 · My battery voltage is now 12. Aug 15, 2014 · the voltage increase is exclusively for amps in the car audio department. Mar 17, 2016 · The ECM checks the voltage at the driver's side battery. 54 ,:thumbsup KN, 1\8" timing bump, 25mpg city 30mpg hiway 20mpg towing 6k 5'er Sep 18, 2015 · I have a 93 5. 7, my Haynes manual said one test of the alternator is to disconnect the power wire that goes to the battery and then read alternator voltage. There are some visual cues you can use to diagnose your alternator’s general health. This alternator seems to maintain a more consistent charging voltage than the Leece. Jun 5, 2017 · Thanks Corey, I understand the voltage requirements needed to excite the alternator but I don’t understand why the alternator will wake up once the RPM reaches higher levels which is fine as it then starts to charge the batteries. Feb 13, 2015 · I'm lost you guys. The normal range for a "good" alternator voltage is ~13. Replace alternator and still 12 volts. 8 will cause very long charging times. Prior to 1987 Dodge/Chrysler used a separate voltage regulator on the fire wall. $1,067. Still the problem exists of 16. So yesterday I replaced the alternator, now it is running 17v @ idle and runs up to 20 volts @ 2500rpm. Nov 7, 2015 · Put the transpo on and the pulsing issues are gone. 5-2018 Dodge Ram 6. e. 1 - 24 of 5298 results for Alternator Compare Filter/Refine. 54 ,:thumbsup KN, 1\8" timing bump, 25mpg city 30mpg hiway 20mpg towing 6k 5'er Jan 30, 2010 · Thank you, Thank you, FistyMopar!!! We had overcharge problems on my sons 1989 Cummins, been through several alternators, several voltage regulators, several batteries, but *still* was overcharging. When it does it the voltage gauge on the dash goes all the way down. Aug 1, 2013 · 220A Alternator Output Curves – Cummins Only – Sales Code XF7 . 2006 2500 efi,62/65 turbo,tractionbars,airbags,2inch leveling kit,tcs singledisk. then maybe 2 minutes or so the voltage will just Dec 21, 2014 · Hi everyone, I was wondering if it is normal for the ac voltage to fluctuate from my normal . 8 and dropped to 11. 3-Wire Alternator Wiring Diagram Mar 17, 2015 · The multimeter is showing that the alternator is outputting 40v and to me that seems incredibly high. Torque-matched V/Hz overload control - The voltage roll-off set point and rate of decay (i. 1 and gauge dropped. redline vb, Nov 21, 2017 · The other critical tool to effectively diagnose an alternator is a scan tool. The connecting cable is is good and both batteries are good and alternator is not even a year old. Any help would be great. I ran it by a few people and they all said the alternator is bad. The problem Cummins Alternator. I think I am getting voltage backing up the line to port alternator, can this cause the diodes on alternator to fail? Dec 23, 2012 · Blue wire of the alternator should work too. Jul 29, 2010 · You can check the voltage on the batteries and the alternator with the truck running to help narrow it down. Alternator protection, part 1: Understanding code requirements Power topic #6002 Part 1 of 3 | Technical information from Cummins Power Generation This paper identifies requirements for protection of alternators based on North American code. There is a bayonet connector on the isolator marked ” IG ” which would suggest that it be connected to the alternator excitation system, thus causing alternator output voltage to collapse until the overload is removed from the system. INSULATION SYSTEM: Class H Throughout. 55V after shutting it off. We offer a comprehensive range of 100% original Automatic Voltage Regulators and other alternator parts to meet your power requirements. Jan 31, 2008 · Voltage Regulator Conversion Help Hello, I have a 1982 dodge cummins diesel crew cab 4x4 conversion I am finishing. 9l cummins ho stopped charging all of a sudden. Frame Size P734F. So I Jun 10, 2012 · My voltage regulator went out (part of the PCM). Batteries tested bad (both) with black battery acid. Jan 26, 2017 · 2006 dodge 2500 5. 5-13 volts. Feb 11, 2016 · Here's my problem, my volt gauge was only showing like 12vs so I checked the alternator while the truck was running and it is only outputting like 12. Due to its adaptability and versatility the P80 has become the global alternator of choice in many applications requiring a durable and robust 4-pole product, whilst maintaining cost competitiveness, in applications such as data centres Oct 14, 2015 · High resistance in the battery voltage monitor circuit. The only other difference is that this alternator has a remote sense terminal. Low drivers battery causes charge but it might not be getting it because of the bad battery connection. ALTERNATOR DATA SHEET. I monitor it using a Tekonsha brake controller which reads in tenths of a volt. Learn more about Alternators from Cummins, Inc. Apr 20, 2018 · You wouldn't be the first and won't the last person to confuse the normal operation of the grid heaters with a voltage regulator/alternator problem. 2008 3500 2 door 6. Opinions Dec 14, 2010 · 98. Dec 1, 2013 · Here are a couple of the voltage regulator. It worked however, I was reading 18 volts at idle at the battery. 32, 180 pump, 4K gov springs, AFC Live, Full rack travel kit, Rack Plug, Mishimoto Intercooler, DAP 7x. You can cut the high spots with a hacksaw to make sure they pinch better if they don't. The battery light on modern vehicles, however, is controlled by data and trouble codes. From what I read that seems well in tolerance. I must have the older style, as I dont have a plug in, but a block where all 4 wires meet then bolt to the alternator. provide a voltage recovery to at least 90 percent of rated voltage. 13 volts. I've read on multiple threads that 1/4-1/2 volt will cause this code to show up. Mar 6, 2011 · 1992w-250 SOLD!!!1999 ram 2500 sold. Since you have a new alternator, I'd be checking the voltage to the field windings. My issue is that I do not know how to properly test it. I ran this reference wire over to my under-hood PDC, so the alternator is sensing system voltage after the voltage drop from both batteries. Meaning your regulator measures battery voltage and varies the strength of the alternator field to regulate alternator output. I'm hoping they fixed it with a new alternator. 8 the whole day. So, the questions for the experts are 1) is this theory plausible, and 2) if it is, what would cause the grid heater to stay on like that? Mar 19, 2010 · im guessing your boiling the passenger side battery?? if so ive heard of a few people having loose/bad connection or a bad cable that goes between the batteries also check the voltage coming out of the back of the alternator, it may be overcharging, buddies 05 is having problems and cant figure it out, but his alternator will occasionaly put out 30 volts and sometimes more! had 2 new Jan 31, 2011 · Truck has a new PCM and new alternator installed recently when we got the truck. May 21, 2020 · O’Reilly’s said it’s built into the alternator and replacing the alternator is the solution. Alternator was putting out 12. Do some research. i can hear my grid heater trying to pull down too as its cycling, then when the cycling would stop, my voltage would still be around 11. I hooked up the 1994 cummins alternator to the 1982 dodge wiring. If its below 3v, your PCM is not sending it power, if its over 8v and the alternator still isn't putting out power (when running obviously) your alternator is fried. Green wire should only be hooked to the alternator nothing else. Now the reason this all happened is because the previous most likely had a bad alternator and the excessive AC noise cooked the ECM 5 volt supply. Apr 1, 2012 · Has anyone found a alternator that will bolt in place of a 12 valve dodge alternator with a internal regulator? It's for a cummins swap, I am not running the bcm and I prefer not to run a external regulator. Basically turning your Cummins alternator into a one wire unit. So I replaced both batteries and replaced the alternator and it still wouldnt charge! My mechanic ran a few test and said the truck needed a new ECU. 1 wire from the alternator to the top left post on the regulator, 2nd wire from the alternator to the lower post on the regulator. My Battery Minder charges at 14. 5" turbo back stainless exhaust. NO VOLTAGE PRESENT. Great for engine swaps or when your dodge factory computer-based voltage regulator fails. i am having problem with charging system. If your truck is up in mileage over say 130,000 it might be the alternator's brushes wearing out. The part was a week away and 2300$ so i read online you can install an external voltage regulator. Could this cause the voltage to be high? Its not always so high but its usually always between 14. No Load. On the other hand, you could have a faulty alternator as well maybe there is a problem with the wire that regulates the output voltage of the alternator from the ECM. BTW, factory service manuals are available from Dodge Cummins Turbo Diesel Parts and Accessories - Geno's Garage Technical Data Generator set specifications Model C2000 D5 P C2250 D5 P Prime Power Rating kVA 2000 2250 Output Voltage and Frequency 415V/ *3. 97 percent of the fundamental voltage generated by the same alternator if it were wound with a full winding pitch, at the same level of excitation. Visual Signs Your Alternator is Failing. 042 v up to . 4, no more than 15 and no less than 13. 5 volts(off the truck). 6. . My question is, are these voltage fluctuations enough to fry an ECM? an alternator, the alternator itself and conductors up to the resistor location are not protected. Feb 7, 2012 · Nice 14. Either have the alternator load tested at PepBoy's etic, or buy a replacement alternator, or voltage regulator. Could anyone tell me what could be wrong. 5 Perfect fit for 1989 W350 Nov 26, 2010 · causes the ECM to drive the alternator field harder thus more voltage out. You should see the difference. If you give the regulator bad information via undersize wiring or corroded connections, it will give bad regulation of the alternator. 5 24v has about 197k miles. _____ The STAMFORD ® P80 series is an industry leading range of Low, Medium and High Voltage alternator products that has a power output of up to 5,190kVA. 2 is available for high voltage applications. 5 volts. 5 . Mar 21, 2016 · As for wiring, I re-used both cables. 5 Dodge SB QC 2500 2wd Nov 29, 2017 · This is the large wire on the large stud on your Gen/Alt and you should have battery voltage or alternator output voltage on this stud. and enthusiasts of Cummins Oct 8, 2016 · If 14V was true then ECM would push up the charging voltage to as high as 16-17V until it saw its target voltage. 4. But the ECM saw only the 11. 69 and 15. Normal voltage not running should be about 12. respect of nominal operating voltage voltage factor 380v x 1. 7 respectively. arty018: 96 2wd eclb 47re stock 434,000 miles - new oil pmp, kdp, Fluid damper, curt 24k 5th whl. Got the low voltage light a few weeks ago and it looked like batteries were going the wayside, i replaced and had no issues for two days, then got same low voltagw and when metering batterys I saw the alternator was not charging. I don't know what the heck is going on. 1995 Cummins Apr 13, 2010 · The whole purpose of voltage regulator is to respond to loads and vary output of Alternator to compensate. Jan 4, 2022 · The voltage regulator is usually found inside or on the back of the alternator case. Then on Tuesday on the way to the service department at the dealership voltage was 11. 0 300. Jul 2, 2012 · The PCM is doing the voltage regulation function by pulse width modifying the field voltage to the alternator and monitoring resulting system voltage. the kVA of the alternator for which the value of X”d is known [for the voltage the alternator will supply the load] X”d Table and Graph for Alternators with Winding 311/312 There are known key alternator values of X”d that are required to achieve particular system harmonic voltage distortion levels. Jun 1, 2021 · Voltage sense terminal: Allows the regulator to sense the battery’s voltage. Alternator Speed (RPM) alternator inlet air 500. 6v, so I'm kinda confused a what I should do. When running you should see anywhere from 12. 042 VAC low enough? This measured at the post on the alternator with a fluke meter. The weakness of this design is that shunt-type systems typically utilize single phase sensing voltage regulators, so a single-phase fault or overload may not cause the system to collapse immediately. It's a brand new alternator also. thanks Mar 10, 2014 · 2001 2500 4x4 QCSB, ZF S6-750 transmission, NV271 transfer case, 62/68/12 turbo, DAP 7x11 200hp injectors, Quadzilla Adrenaline BT, Pacbrake, DRW Dana 80, 35-spline Dana 60 front with king pins Mar 6, 2012 · No alternator voltage. Got the PCM back and installed it with 2 new batteries and a new alternator. 0 Nov 10, 2011 · yes I have checked the voltage at both batteries and it doesn't seem to be any different ever. The gauge also runs off of the drivers batt via PCI bus from the front control module. The batteries should read >12VDC when the engine is running and the alternator is functioning properly. I'm having an issue with. 5 volts, the regulator will stop supplying voltage to the field and the alternator will stop provide a voltage recovery to at least 90 percent of rated voltage. 5" intercooler piping, gdp intake horn, 4" tbe, airdog 4g, exergy 10mm cp3, ddp 100% overs, Hamilton 103lb Feb 14, 2021 · I have a habit of always monitoring the battery/alternator voltage when I start/run my truck ('16 Ram 3500 w/220a alternator). Jump to Latest 99 Dodge 3500 - P-24 Cummins, Auto, 4x4 68 Dodge D100 - 6bt, 47rh 99 Ford F350 - Broke, waiting 6bt. 91 (08-90) D250 5sp 2wd 511k VE 'adjusted', 3200 spring, Pyro, boost, 3. side battery. 9V. It came back fine, but the low, actual and high voltage were 13. Am I wrong on this? It is hard to believe that the alternator is working well with 225,000 miles on it. After about 30 seconds, it started charging again. My amateur opinion settled on the alternator being bad/going bad. The brown wire is the field wire. The grid heater being on for a half hour isn't normal, unless maybe it's 60 below out. 5 to about 14. Feb 11, 2021 · I bought a replacement alternator from Seaboard that fit exactly but put out more amps – 145 amps vs the stock 19SI’s 105 amps. With stbd motor running I read about 2. 5 volts at idle. 4206 lb 1908 kg 3547 lb 1609 kg 8466 lb 3840 kg 2250 rpm. Nov 13, 2011 · The alternator is controlled by the ECM and the sense voltage is on the drivers side. So before you install a repaired ECM back on there y Feb 8, 2016 · The voltage you saw inside the cab was the driver side battery voltage, not the passenger side voltage. it is my intention to get experience in such an install with my own equipment first and go from there. 00 the sustained current value is constant irrespective of voltage level note 2 the following multiplication factors should be used to convert the values calculated in accordance with note 1 to those applicable to the various types of short circuit 3 phase 2 phase l-l 1 phase l-n Cummins Automatic Voltage Regulators: Your Trusted Parts Dealer General Power is your official dealer for genuine Cummins products in the Americas. I think easy fix. All battery post/terminal connections were good, and a recent voltage drop on the parallel wire between battery + posts yielded only 0. 1 was a Bosch, this one has a black plastic cap on the back of the alternator. This shows the alternator connections. My 12 valve Cummins is now closer to a 1 wire fire thanks to paperformance. Apr 4, 2013 · My truck seems to start much easier but voltage on each battery at idle around 14. May 8, 2016 · Rebuilt ECM some time can be found for cheaper. 5v-15v, usually on the higher end. Using either the carbon pile or an amp clamp to monitor the charging output. Dec 28, 2020 · My 08 6. Sep 24, 2015 · If the test circuit doesn't reduce the alternator voltage, then you probably have a short to full ground in the other alternator field connection wire from the VR. In addition, medium voltage paralleling switchgear built to ANSI Standard C37. I took off the transpo off and tested the alternator(off the truck again) and it tested at 14. 97 lbs. I drove the truck for about 30 minutes tonight. More than 14. If the recovery voltage is less than 90 percent of rated voltage, a point on the voltage dip curve beyond which the voltage will not recover to should be identified …. 8 volts and both batteries are reading the same. The gauge you are reading should read the same as the one you already have in the dash if it is any good. Something obviously wasn’t stirring the kool-aid. A few weeks ago after a warm start, I noticed that the alternator was not charging; voltage was about 8-10 volts. Has been working great for 2 months. Jun 23, 2016 · First you are reading alternator voltage not battery voltage. Jul 9, 2017 · The stbd alternator post on the isolator reads zero until motor is started then reads 14. Our custom built Dodge Cummins One Wire Alternator does not require any connections to your vehicles computer to function, simplifying your charging system. Dodge used two alternators for the Cummins trucks. Is this value normal? In the truck the battery gauge reads 14. The alternator was putting out 13 volts @ idle, and then would run up to 18v @ 2500rpm while driving. Unlike a grounding resistor which can fail, the AmpSentry function is simply logic in the control, which cannot fail if Jan 25, 2011 · I have also heard about people running older Chevy alternators on these trucks aswell, as they have good built in voltage regulators. Voltage Drop Check your Alternator fuse Apr 2, 2015 · 02 QCSB, NV4500-G56, SB DD3250, Fass 95, Industrial 62/65/12 over s475/96/1. Check the fuse if you don't, or wires associated with that circuit. 5 VDC on each if the alternator/regulator is doing its job. You should have roughly 14. 2. Please report the set Jun 14, 2024 · Alternator AC voltage Jump to Latest Follow 371 views 9 replies 4 participants last post by bigfish95971 Jun 17, 2024 Internal voltage regulator to set your charging to a set 14. Check this with a good volt meter rather than the gauge in your truck. :confused013: Thanks!! Feb 8, 2010 · I have changed both batteries and the alternator. The red wire detects the alternator's output. Serial number on my engine is … Read More Microsoft Word - P7. Feb 10, 2011 · When a wire shorts it can do all sorts of crazy things explaining both the low voltage and high voltage ECM fault codes. Auxiliary equipment such as off-road lighting, winches, and snowplows can be extremely taxing on the factory charging system and is more than it was originally designed to support. I was seeing a reduced voltage (around 13. yellow top optima batteries, 3000 watt continuous inverter, espar cabin heater,complete emissions delete. Followed instructions in box and video on paperformance website. 20. One option is to rig up an old style voltage regulator or to use a 1-wire alternator. For the 2/3 pitch alternator the fundamental voltage is 87 percent of the fundamental voltage generated by a full pitch winding. We replaced pcm and my alternator is still not charging. 73, black, Edge Insight, 285-70/17 BFG, Bilstein 5100 shocks, MagHytec rear diff cover, otherwise all stock. Eligible for returns Dec 14, 2011 · IIRC the alt charges the pass side battery yet the signal to regulate the alternator is off the drv side battery, so if the ecm/alt sees low voltage its going to go max output(14. Jul 9, 2021 · is a 1998. Troubleshooting and repairL Feb 12, 2019 · I don't know if it's safe on these trucks, but on my '02 1500 w/4. CHARACTERISTICS. 0. 7 auto ats deep pan 4x4 megacab dually 304 stainless bumpers front and rear Warn winches front and rear. No wires, just plug and play. 3/ *6. 4V) but i have had quite a few people ask for higher voltage charging systems. If you supply a low reference voltage, the alternator output will be raised. My voltage from the alternator is reading 11. 5 RAM 3500 6. 8 - 14 9 V. Dec 5, 2015 · 2003 Cummins high voltage on alternator Jump to Latest 10K views 26 replies 10 participants last post by steelhead01 Mar 2, 2016 Nov 10, 2016 · Changed out the alternator, the batteries still within a minute of truck running the alternator is getting scorching hot. Shipment Weight: 8. 68. dot. Check the voltage between those two studs. If you get no voltage reading check the fuse on the alternator feed to power distribution block. 0 200. Replaced alternator, same problem. I removed the alternator and took it to an auto parts store who tested it. Anyone have any ideas? 2016 - bw s467. 0v at the battery makes it look like the alternator is charging. Dec 16, 2014 · I am not sure exactly how the PCM controls the voltage but if you take the 2 little wires that do the voltage reg part and just leave the end connecter to the B+, start the truck, run a jumper wire from the positive on the battery to the B+ on the alternator then it should start to put out higher then battery voltage. 6/ 11KV - 50Hz Jul 1, 2020 · I need to replace my original Delco alternators on my engines - no voltage and intermittent signal to RPM tach. The 2nd was a Nippendenso, this one will have a tin cap on the back of the alternator. ” of 90% of rated voltage and the alternator over load curve represents the maximum kVA load at 90% rated Feb 13, 2017 · 2003 Dodge Ram Cummins 5. 013 sac, O ringed, hardened exhaust seats, 104# springs, chromoly pushrods, studs, hammilton 188/220, fluidampr, . The batteries are taking a charge off the AC charger, so I think it's the alternator in my situation. Jan 8, 2024 · 01 Cummins alternator voltage Jump to Latest 1K views 22 replies 4 participants last post by SVALIN Jan 12, 2024 May 5, 2018 · Well I sent the PCM out for repair and the voltage regulator was toast. Not sure where to go next Oct 13, 2014 · Check the hot wire coming from the alternator going to the pass. 1993 W250 Cummins 12v with 1 ton suspension Jan 13, 2008 · Now, on the back of the alternator are 2 SMALL studs, that a black housing connects to. 7, steed speed manifold, turbo smart bov, aa motorworks 6" intake and 3. Mar 30, 2013 · Well, after my long 1200 mile adventure without a voltage regulator, I had my alternator rebuilt and then I installed a self exciting, internal voltage regulator. It should read battery voltage, 12v in your case. Sep 26, 2021 · I finally decided to test my alternator. 470. If that checks out then you know the alternator is good. 2-11. Electronic voltage regulators have been used on many cars since the mid 1970s. WEIGHTS: Stator Assembly: Rotor Assembly: Complete Assembly: MAXIMUM SPEED: EXCITATION CURRENT: Full Load. 5 volts so it was maxing out the alternator but that charging voltage was only going to the passenger battery, not the driver's battery. Jul 2, 2012 · Did you test the old alternator to see if it was bad? Do a voltage test at the rear large terminal of the alternator. Replace the weak factory alternator in your 2007. 7L Diesel with a high-quality upgrade. 7-14. Now i know that the ecm regulates the voltage but also when cranking and grid heater cycling the ecm stops charging. about having the alternator output tested. custom torque converter; bd billet flex plate,air dog 200gph adjustastable regulator,smarty ME tune This 12V, 136A alternator is a replacement for your stock alternator on your Cummins engine in Dodge Ram (model years: 1989-2002), with no mounting bracket modifications. PPE dual cp3s. Go through and check each connection for tightness and make sure they are clean. 5 V. If a fault or overload May 6, 2023 · OEM alternator was Bosch, typically 136 amp version pretty simple as no built-in voltage regulation, really just a DC generator most common failure is from the heat causing damage of bearings, damaged diodes from bad wiring including grounds, actually pretty reliable, easy to fix and upgrade. Apr 13, 2009 · Last week my voltage meter went to Zero and check gages light came on. 5 24v cummins supposed to have the old 12v 3 post connector design? i ordered a 99 alternator since my alternator was going bad, but it's not the same, it has 1 post and a bosch connector. alt output showes 11. 3V no load. 9 to 14v, tested with voltmeter at the post on back of the alt. 16-18 AWG is fine. May 15, 2012 · 2007. 8-19 volts up and down. bat reads 12. Apr 14, 2021 · ive been having this issue slowly happen, and happening more often now. Was told they were burned up due to alternator over charging. :wink2: This morning it was below 50F outside, my target voltage was around 14. 7). 5, 14. 03v, so it was fine also. I pulled the alternator and took it to a shop where they replaced the brushes and the rectifier. 22. Apr 4, 2015 · I know I need new battery's. Jun 15, 2020 · Ever since I bought it there have been some voltage issues. Nov 24, 2011 · There are lots of other issues with batteries but high alternator voltage is seldom related to lack of battery capacity. 5 again. Jan 7, 2022 · charged batteries, truck started but idles very very low, and on DASH display for voltage, it showed just 10 volts for a while then went up to 14 once started and running a bit took truck and had batteries load tested, they tested good had alt tested it tested good, but showed that at alternator up it wasn't charging for first 20-30 seconds We offer low voltage paralleling switchboards listed to UL 891 or UL 1558 for applications ranging from 208 to 600 volts. 600v AC and 200v AC. 5 charge on both sides. When the voltage exceeds 14. 2nd wire also combines with the hot wire from the relay. I think the other battery must be toast as well becuase it only shows 11 volts even with 18 volts being applied to it. 8-14. com Nov 27, 2017 · I'm still chasing this P063D code. If there isn't any voltage it could be the PCM and it could be the battery temp sensor. 020 over ceramic marine pistons, S&B horn, Tunnel Ram, Home-built traction bars Feb 12, 2010 · If I disconnect the alternator from the PCM and make it look schematically like the '91 dodge setup, will this work? This would involve cutting the alternator off from the PCM (green wire) and connecting the alternator green wire to the voltage regulator. Mar 14, 2011 · either the PCM is not controlling the alternator output, or the alternator is worn. 9 12 valve in a 95 Chevy body I had a friend replace alternator now it will not charg batteries its starts no problem but runs batteries out about a day of running I have the power supply hooked up and the then there is terminal 1 and 2 1 is wired to ignition switch but 2 just has a wire and he couldn't figure where it went to any suggestions Jan 8, 2012 · i tested my alternator/battery and my alternator is pretty close to being dead. 9, HO, QCSB, 4x4, automatic 48re, started as federal vehicle Then check the voltage at the alternator output stud. ” of 90% of rated voltage and the alternator over load curve represents the maximum kVA load at 90% rated Nov 29, 2017 · This is the large wire on the large stud on your Gen/Alt and you should have battery voltage or alternator output voltage on this stud. Field or ignition terminal: Allows battery voltage from the ignition to flow to the alternator’s field coil during startup. Just stepped back and attacked the grounds like you said and voila! Or so it seems so far. This external voltage regulator is meticulously engineered to be compatible with Cummins models from 1989 to 2002, providing a reliable and stable power source for your vehicle's electrical system. 36. 6/ 11KV - 50Hz 415V/ *3. Dec 14, 2008 · 91 dodge D250 w/5. I unpluged the computer from the alternator and the alternator was charging it a 13. hxedm vteyj ylkl vnrqfpd vhjot rzcypfq tzjzak oeiiv kjmh drkrhb