The cause of the battery light could be a loose or corroded battery cable or other wire connecting components of the charging system, or it might be a problem with the alternator or voltage regulator. When your tests point to an under-charge or no-charging condition:. This article is broken down into six sections: What is a charging system. Rust, grease, vibration. At that point the amperage can rise to. New battery won't stay charged. 4 Signs Your Car has Electrical Problems Here are 4 signs your car may have an electrical problem (photo credit: BigStockPhoto. Check the alternator gauge. 3600 rpm for a 2 pole alternator, 1800 for a four pole alternator. An alternator actually produces alternating current, just like in your house. 9volts and dips down to 12. The alternator will not continue producing power when the battery is dead, most modern alternators run off 12 volts from the battery. What Can Go Wrong. The guy said they sometimes test OK while in the shop but then some won't work properly when in the car. Depending on the alternator failure mode and timing, vehicle electrical. When your tests point to an under-charge or no-charging condition:. A short chirp noise during engine start-up or shut down is most likely caused by a worn overrunning alternator pulley. As with any device that is driven by the engine some level of load will be exerted, which will cause some change in the overall emission level out the tail pipe. The parts shop should have told you that. Introduction. How to Rewind an Alternator: This will cover rewinding of an alternator stator for use in a wind turbine generator. The ALTERNATOR keeps your battery charged. Aftermarket stereos can be a pain if they aren’t functioning properly. Replace the ISCV. The installation of the one wire alternator, coil, points and battery went OK. All windings and current-transmitting components are non-moving, so there are no brushes or slip rings to wear out. It turns off my speaker amplifier as soon as I hit the. If you remove all the fuses, and there's still voltage showing, it indicates a diode in your alternator has gone bad, and it's time for an alternator rebuild or replacement. com : Car complaints, car problems and defect information. Repairing Charging System Problems. old rebuilt alternator drops off line when engine is warm, drive around town for :10 min. What you said happened should not have caused any problems to the alternator at all. The symptoms of this problem are no charging, no useful starter (whirrrr!), and poor idle/running as the battery doesn't seem quite powerful enough when running with a "total loss" (no alternator/generator) electrical system. When this does happen, the alternator begins to run hot, and this is what kills the alternator. The car won’t start. This should make the solenoid kick in and the engine should crank. This oneHOWTO article will tell you about symptoms of bad failing starter, so that you can identify the problem and get it resolved accordingly. Here is a listing of bad alternator symptoms, which will provide you with an advance warning of alternator failure. Ammeter stays at 0 with key on. Once that happens, you can expect all kinds of symptoms to arise. Until recently the easiest way to tell the systems apart is by looking at the plugs that connect the stator to the regulator. The alternator voltage target values of 14. If the car stops, then you most likely have a problem with the alternator. the little snap plug with three wires were frayed and grouned to alt. Find VW Alternators, Generators and Related Volkswagen Electrical Parts for Aircooled Classic VWs Aircooled. That includes power steering, air conditioning compressor, alternator, and of course the water pump. Corrosion or bent pins can cause MAP sensor signal problems. When your generator has now or low voltage, it could be caused by the panel wiring, capacitor, alternator, or other parts. It could also be the ground fault protector (in the newer units only) tripping the regulator offline. Impeller blades on the pump force the coolant to flow through the engine and back to the radiator. I have a 2007 Mitsubishi Raider 3. short period of time (one second?), you HAVE blown the alternator diodes. When searching for the right solutions, the guidance and answers of Experts will help owners to ensure that the right repairs are done. check the belt tension is in fact right. Depending on the alternator failure mode and timing, vehicle electrical. You should measure between 13 and 14 volts. Until recently the easiest way to tell the systems apart is by looking at the plugs that connect the stator to the regulator. Let us begin. car will not start. How can GMC alternator problems be diagnosed? These are some of the common questions that vehicle owners are often faced with. POWER PACK OR TRIGGER REPEATEDLY BLOWS ON SAME CYLINDER: 1. If battery, alternator and power regulator are OK, test wiring to find out if there is a short to ground that is draining the battery while you drive. The battery should have 12 volts or higher with no load on it (ignition and lights off). as soon as i touched the. If there is no change, the problem is in the alternator. Vibrations are minimized using anti-vibration solutions between the engines and alternator, which significantly reduces the amount of vibrations created by the motor. view details. If the starter is good, the last likely culprit is a bad alternator. \$\endgroup. If the alternator is bad, the battery will most likely be dead as well. Alternator Rectifier Bridge. What Does an Alternator Do? An alternator works with your battery to charge your vehicle’s electrical systems. Engine Running Problems An engine with a vacuum leak could potentially run normally, but it may idle faster than usual, idle roughly, misfire, hesitate, or stall. Just an fyi, a bad diode in the alternator can drain the battery even when the engine is not running. gave it a whack, the alternator not the wife! and it started to work. It’s intended to maintain the charge on a good battery. 5 volts when I hit the gas, and 15v idling. Intermittent Bad Ignition Switch Causes Low Power and No Blower Motor. Electrosport Industries) as a preventive maintenance action in preparation for a 2006 vacation trip. The MPV is running now, but the Battery light is still on. Shorted wire help (alternator or ecu issue) During my hookup of the electrical system I managed to supply direct power right into my main ground terminal box for about 10 seconds just enough to completely fry the ground wire of the switch that I was connecting to power. Troubleshooting an alternator system is somewhat different from troubleshooting a generator. We have had great luck curing many trucks with these cold start symptoms with this additive. The fast idle may simply be a misadjusted throttle cable at its clamping area at the engine or other misadjustments something to be looked at later. Problem with Starter or Solenoid – Good parts gone bad parts. You need a "floating ball" battery tester to check the specific gravity of your battery's fluid (assuming you do not have a sealed battery), and an inexpensive multimeter. A week ago I had my alternator replaced in my 2003 malibu. The manual said check cables, they are good. i shorted my alternator wires while changing the alternator. If not, trace the red wire back to the fuse box, the black wire to its connection at a ground. Most aircraft require some form of electrical power to operate navigation-, taxi-, landing-, strobe lights, one or more COM and NAV radio's, transponder, intercom and other advanced electronic system of your choice. If there's a problem with the battery where the reference voltage is very low, the alternator will try to recharge the battery. Diagnosing A Battery Drain. , and I thought the guard rail had me!. It sounds like a bad alternator to me, it's possible that your old battery was fine but just not getting charged enough (although at 7 years old it's time to replace it anyway) If the alternator was bad, then driving to autozone and then back could be enough to drain the battery - particularly since it sat for a few days after that. Unless you have an electric fan, the fan belt that drives the water pump also drives the fan. Open or short in the generator (alternator) field control (regulator) circuit. Is not the isolation post on the alternator where you hook up your 12v to keep the 12v from dead shorting. i thought i traced the problem to the alternator. Nissan Alternator Problems Fix Nissan Alternator Problems. The alternator’s charging output flows through six diodes in the rectifier assembly before it goes to the battery and electrical system. With our how-to troubleshoot alternator charging systems article, you can Make sure your vintage Mustang's battery is charged up and ready to go - Mustang Monthly Magazine. What you said happened should not have caused any problems to the alternator at all. auto parts store claims that alot of these fires reported in ford truck alternator electrical systems to alternator. Introduction. If the battery only measures to a maximum of 10. The parts shop should have told you that. 5 V are achieved by switching the alternator control mode (controlled by the Powertrain Control Module ). One of the first symptoms of a bad or failing alternator is the need to jump start the vehicle on a regular basis. The alternator or stator produces AC voltage, which is sent to the regulator for conversion to DC voltage. The wiring of the stator could also become damaged by contact with the flywheel if the wiring became hot and sagged. technician B says that the reading. Why the continuity from positive post terminal to ground areas of motor and body of alternator. A shorted battery, loose or corroded cable and wire terminals, or a bad regulator can all cause a no charge problem. The following symptoms will give you an idea of what’s gone wrong, check them now:. The connector should be securely connected, and the pins should be clean and straight. Any short or open circuit or wrong connection can cause a sudden surge of voltage that will damage electronic parts. My car alternator runs at 16 to 16. For me, this was not an acceptable option since one of the reasons for installing the alternator in the first place was to clean up the unused wires in the engine bay - also to make room for an MSD ignition. Seeing smoke is cause for immediate concern, and can indicate a few different problems with the starter or starting circuit. Undercharge Symptoms 2-2 2–3. If it’s not, remove the belt or alternator, if gear-driven, and slowly rotate the output shaft by hand. However, the engine will stall as soon as the battery charge is depleted. hi guys new to the forum, looking for some advice for the wifes car. That broke on me, resulting in my running off the battery with the same symptoms you have. Headlight Trouble Your alternator provides the power to your headlights. If you have a stereo or other equipment and you find your alternator charges better when it's cold or charging falls off as the alternator heats up. ( look for lamps stuck on everywhere on car). This will let you know if the alternator is charging and providing enough juice for the electrical needs of your Honda car or not. This will cause the belt to slip across the pulley surface during belt and alternator speed fluctuations. Alternator slippage and undercharging can also be caused by a bad alternator pulley. Water Pump Failure-What are the Symptoms. Dead batteries are especially common during the winter months. We short-circuit the LV side of the transformer. You should measure between 13 and 14 volts. If the system now charges, the regulator is faulty. As you continue to drive your vehicle, the alternator belt gets a little bit more worn each day. Mustang Electrical Tips – Grounds, Connection, and Shorts 1965-1973 The passage of time affects any vehicle. Had to get it towed two blocks, seemed silly, it held up traffic until I had some passers by push it onto the median strip. The fast idle may simply be a misadjusted throttle cable at its clamping area at the engine or other misadjustments something to be looked at later. When your generator has now or low voltage, it could be caused by the panel wiring, capacitor, alternator, or other parts. The starter demands 400 AMPs which is a little high. Of course, you could build your own engine, piece by piece, if you have the tools and knowledge or have a friend with a machine shop. Should be easy to tell. You should measure between 13 and 14 volts. 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. Corrosion or bent pins can cause MAP sensor signal problems. Well see I have read a few things, one says that if one is bad in an open state it will work as normal just not at 100% which my Red Top might be covering up so I guess off it comes and on goes a replacement so I can bench test it. A bad alternator will not properly charge the battery. The alternator output signal is sent to the PCM, and it varies according to the batteryís state of charge, the electrical load, and the engine speed. Engine Stalling. Although this type of problem typically isn't caused by a bad battery or alternator, there is a small chance that you're dealing with an alternator that's on its way out. This site will tel you about 2000 Silverado Bad Alternator Symptoms Prices, 2000 Silverado Bad Alternator Symptoms Redesign, and 2000 Silverado Bad Alternator Symptoms Reviews. For example, a 6-inch crank pulley with 2-inch alternator pulley will yield a 3:1 pulley ratio. Make sure it’s really dried, a small amount of water can short the lines and destroy other parts. Battery dies. The electrical system consist of a battery and an alternator or generator on older aircraft. Your equipment needs for this are very simple. and lots of noise if shorted, EMI will happen (Electronic -Magnetic Interference) Bad diode trio, opens and shorts, (weak or dead alternator or intermittent op. Use a short wire to jump between the red and brown wires on the plug. Once the engine is running, the alternator supplies current which, in the ideal case, is sufficient to supply all electric loads and charge the battery. If one diode goes bad, it can put noise on the 12V system which confuses the computer. Am i correct in this? One more small clarification is that, I have to just avoid shorting the battery terminals only and even if I connect a very small resistance is also no problem?. So when I hook up the 12v. The issue can be found on any car and here is the solution. Alternator ground connection is the casing, grounding back through bracketing and eventually through battery ground cable. While it could be the alternator, a weak/bad alternator would cause a battery to be low on charge. Tool Diagnosis: Is it the Brushes or the Switch? September 18, 2009 This article describes the differences between power switch and carbon brush failure symptoms. First Things First – Tell Tale Signs Turn detective and look for evidence of a faulty alternator or starter motor. 6 Symptoms of a Failing Alternator 1. These are used when using a second alternator to run optional devices, drills, vacuum turbins using alternating closed circuit divices. 4 Steps To Take When Your Car Dies While Driving It. The problem may also be worn bearings or (in some cases) lack of lubrication. Before you start throwing parts at your car to try to fix it, follow these steps to do it once, and do it right. The Body Control Module (BCM) is the central organizational element of your car that controls other security systems of the vehicle. Problems with an alternator can drain a car's battery. [Editor's Note: See the section on "Baked Wiring Harnesses" in Electrical: Circuits, Relays for more information. Upgrade your alternator wiring. Sometimes, but not always, a cylinder head or bell housing connection can be used. Short circuit or bad battery? Testing for car electrical problems. Headlights are dim or flickering. Got that replaced. Just an fyi, a bad diode in the alternator can drain the battery even when the engine is not running. The best option you can do with a bad alternator is to replace it with a new or used one. This oneHOWTO article will tell you about symptoms of bad failing starter, so that you can identify the problem and get it resolved accordingly. ALTERNATOR TEST 1: Testing Battery Voltage With The Engine Running The very first thing you need to do is verify what the voltage of the battery is with the engine running. Most aircraft require some form of electrical power to operate navigation-, taxi-, landing-, strobe lights, one or more COM and NAV radio's, transponder, intercom and other advanced electronic system of your choice. If so, the alternator is not putting out current. The factory harness is short (less than 1 foot) and can fray the wires in the terminals. Taking Charge of Alternator Problems. After i installed it i hooked up my mulit meter to see it was still drawing amps so i started pulling fuses and when i pulled the alt fuse the amps went down to normal so i pulled out the alternator and had it bench tested to find out that the alt was shorted out by the diode triode thast in the alternator and that was causing th draw in power. What Does an Alternator Do? An alternator works with your battery to charge your vehicle’s electrical systems. Nice M3 by the way, like the colour!. Early signs of alternator or charging system fault may be indicated to the driver by illumination of the instrument panel alternator or battery charge warning light. 5 V are achieved by switching the alternator control mode (controlled by the Powertrain Control Module ). Here is a link that shows exactly w. Here is how to troubleshoot an electrical dead short. Well see I have read a few things, one says that if one is bad in an open state it will work as normal just not at 100% which my Red Top might be covering up so I guess off it comes and on goes a replacement so I can bench test it. The best option you can do with a bad alternator is to replace it with a new or used one. Troubleshooting an alternator system is somewhat different from troubleshooting a generator. Dead batteries are especially common during the winter months. *2 bolts hold the alternator on. The alternator will not continue producing power when the battery is dead, most modern alternators run off 12 volts from the battery. Overcharge Symptoms 2-1 2–2. Vibrations are minimized using anti-vibration solutions between the engines and alternator, which significantly reduces the amount of vibrations created by the motor. TEST 3: Checking The Alternator Fuse Part 3 : This last test may apply or not to the vehicle that you're working on. Wiring failures occur as open, shorted or short-to-ground (grounded) circuits. Pain that subsides with rest. A short is an electrical request for infinite energy, a very bad state, or condition. The alternator output signal is sent to the PCM, and it varies according to the batteryís state of charge, the electrical load, and the engine speed. It shows how Ford external voltage regulator connects to the ignition switch, starter solenoid, Ford externally regulated alternator, as well as the battery. As with any device that is driven by the engine some level of load will be exerted, which will cause some change in the overall emission level out the tail pipe. Aftermarket stereos can be a pain if they aren’t functioning properly. If there is no change, the problem is in the alternator. The more sophisticated electri-cal systems become, the more important their grounds are. You should measure between 13 and 14 volts. OAP pulleys have a one-way clutch inside the center of the pulley that slips and allows the pulley to free-wheel when engine speed suddenly drops. Introduction. These range from emissions problems to faulty O2 sensors to problems with the ECM. Getting the alternator belt replaced is the only way to get the car back on the road quickly. The voltage regulator will allow the alternator to make enough power to maintain proper voltage level, but not allow system voltage to rise to a harmful level. After repairing the short (if applicable) and replacing the mega fuse (or in-line fusible link), retest the alternator to see if it's now charging the battery. When your generator has now or low voltage, it could be caused by the panel wiring, capacitor, alternator, or other parts. view details. Starters and Alternators: Common Misdiagnosis. If you have an alternator, then regulators are usually built in to the alternator itself. The parts shop should have told you that. The failing alternator symptom most drivers recognize is dim or flickering lights. If you remove all the fuses, and there's still voltage showing, it indicates a diode in your alternator has gone bad, and it's time for an alternator rebuild or replacement. If you have Solenoid issues, you might find it harder to brake. Says does not have parts to replace the alternator that is on the recall. In both cases, the boat had two batteries in parallel, so the battery with the shorted cell prevented the good battery from being fully charged. Fixing electrical problems is a skill that every car owner must possess. Shorted out passive components cannot be damaged, but there can be some domino effect that causes trouble elsewhere. 12-22-2007, 02:03 AM. If your vehicle is having trouble starting, it could be showing signs of a failing ignition switch. That broke on me, resulting in my running off the battery with the same symptoms you have. net) VW Parts Catalog - Aircooled VW Parts that Work, Fit, and Last. Of course, you could build your own engine, piece by piece, if you have the tools and knowledge or have a friend with a machine shop. Along with the photo is a brief explanation of the cause of the problem. Since this is being done on the aircraft caution must be taken to not damage anything in the electrical system. NOTE: BAD STARTER SYMPTOMS ARE VERY CLOSE TO BAD BATTERY SYMPTOMS AND BAD ALTERNATOR SYMPTOMS You MUST have a fully charged battery for your starter to operate properly. but if it had shorted the battery would have provided the juice to blow it. When my alternator is cold it will put out anywhere between 14. Strange noises. Ammeter stays at 0 with key on. The triggering of these warning lights is typically based on how much electricity your car is using and if your alternator’s output drops below a certain level. hi, i want to know the right solvent (chemical) that can remove oily dirts from 250kva alternator stator coil without damaging the coil cleaning of alternator stator winding - Electric motors & generators engineering - Eng-Tips. my battery was completely dead one morning so i tried charging it in the vehicle. The problem with that is eventually the intermittent shorted circuit will become a full time shorted circuit and the wiring is not rated for the 30 amps or higher, causing damage from overheating. I had saved your column on the Ford tractor coil problem and it really helped. I got it shut off real quick. Your top priority should be the safety of both yourself and other drivers. It's intended to maintain the charge on a good battery. CarComplaints. Strange noises. This will cause the belt to slip across the pulley surface during belt and alternator speed fluctuations. Deep discharges, heat, vibration, fast charging,. The electrical components on the bike will only draw the powerr they need from the battery. Rectified three phase is better because it provides a smoother DC. According to Hatcher, there are two main problems that can occur with the alternator: Either it undercharges or it overcharges itself. Beside the bearings, it seems to be in short circuit, so it had a deeper maintenance, including a new voltage regulator. After replacing the fuse the car started up fine but upon driving home and shutting off the vehicle and trying to restart it I found that it didn't crank anymore. Corrosion or bent pins can cause MAP sensor signal problems. If the starter is good, the last likely culprit is a bad alternator. I have a 2007 Mitsubishi Raider 3. If it's one of those with a very short belt going from another pulley to the alternator, it's easy to have it. [Editor's Note: See the section on "Baked Wiring Harnesses" in Electrical: Circuits, Relays for more information. Early signs of alternator or charging system fault may be indicated to the driver by illumination of the instrument panel alternator or battery charge warning light. The wiring touched, glowed bright, the plastic around it melted and smoke got released, but I'm not sure from the battery or from the plastic. What is the most common cause of alternator failure? The component that has the highest failure rate on most alternators is the Bridge Rectifier. It happened to me. The dash lights also flicker with bass in the car. This important component allows fuel to enter the cylinders to power your vehicle. Symptoms: The symptoms of a bad knock sensor usually show up while accelerating or under a load. Overrunning Alternator Pulleys (OAP) are used on a number of late-model import and domestic vehicles. Could a Bad Alternator Keep Blowing Fuses? 08-04-2017, 12:18 AM So, I've been trying to figure out why my 7. Hi and welcome to the BMW fault codes (hex code) page. The 2011 Dodge Durango has 19 problems reported for alternator stopped working. Had to get it towed two blocks, seemed silly, it held up traffic until I had some passers by push it onto the median strip. A new battery should read approximately 12. There are many reasons why you could have an faulty ECU. Thus, when you turn on the ignition, the light comes on, as the car battery is at 13. Similarly, the wiring between the ECM and MAP sensor should be intact. Alternator Wiring is Failing. The diodes can literally blow apart. The problem with that is eventually the intermittent shorted circuit will become a full time shorted circuit and the wiring is not rated for the 30 amps or higher, causing damage from overheating. Learn what does P16bc Acura Alternator FR Terminal Circuit/IGP Circuit Low Voltage means, location and how to repair? The alternator is driven by the engine and generates electricity to supply the necessary power to the electrical load and to charge the battery. If the brushes are worn(too short) they will make your alternator not charge/work. Once that happens, you can expect all kinds of symptoms to arise. Check battery, alternator and voltage regulator first. On the belt, hoses nearby, down below and on my coolant/antifreeze reservoir. Would not drive it as you would probably be left stranded. Instead, these devices are grounded to the engine or body. An open or shorted condition detected in control circuit for injector #2 or in the INJ 2 injector bank. When the alternator malfunctions or stops working altogether, it can mean expensive repairs, inconvenience or a break down. The triggering of these warning lights is typically based on how much electricity your car is using and if your alternator's output drops below a certain level. This occurs deep cycle and some starting batteries are typically used for short periods, seasonal powersports or applications, vacations, weekend trips, etc. My car alternator runs at 16 to 16. The actual alternator cost itself could be anywhere from $100 – $500 dollars. 9volts and dips down to 12. Shorted wire help (alternator or ecu issue) During my hookup of the electrical system I managed to supply direct power right into my main ground terminal box for about 10 seconds just enough to completely fry the ground wire of the switch that I was connecting to power. , and then are stored the rest of the year to slowly naturally self-discharge. If you purchase a refurbished or re-manufactured alternator, it will cost between $200 and $500. 5 below indicates that ur ALTERNATOR is faulty. Another common cause for gauge fluctuations is a failing alternator. Replacing an alternator with a new OEM part is expensive, but there are alternatives. Alternator: Provides power while the engine is running. Remove the alternator, bracket, & belt. The following symptoms are typical of alternator charging system troubles. The battery is the core of your car’s electrical system and serves as the initial spark that allows your car to start up. While there are a variety of reasons your Ford F-250 Super Duty won't start, the most common 3 are a dead battery, an alternator problem, or failed starter. These are stored in response to a problem found in the car by the system. When I have. That alternator got me to my destination and home again a distance of 400 miles before I pulled it out and had it rebuilt. If you have access to an ­enhanced scanner, it should be hooked up already, so you can see the commanded charge rate versus actual output, along with additional codes and information that will help with. In the scheme of things with an alternator volts and amps are proportional in full wave output. So the mechanic suggests I test for an internal short in the battery by unhooking the negative terminal and leaving it overnight. NOTE: BAD STARTER SYMPTOMS ARE VERY CLOSE TO BAD BATTERY SYMPTOMS AND BAD ALTERNATOR SYMPTOMS You MUST have a fully charged battery for your starter to operate properly. The issue would be that the alternator isn't living up to its rating anymore, which causes the vehicle's electrical system to run solely on battery power until the. If an alternator whines, a shorted diode may be the problem. Symptoms of Bad Alternator Seal in a BMW in Carrollton In a BMW , the seal of the alternator is what keeps the engine oil from spilling over and into the alternator or other vehicle parts. Yes, if you spray water directly into the engine bay, water can get into the body of the alternator through the cooling vents and short it out. [Editor's Note: See the section on "Baked Wiring Harnesses" in Electrical: Circuits, Relays for more information. If you have a stereo or other equipment and you find your alternator charges better when it's cold or charging falls off as the alternator heats up. There are several signs you need to watch for that may indicate your alternator is bad. Upon inspection, he said that my alternator had shorted out and had singe marks inside and it had also overheated my battery. A short is an electrical request for infinite energy, a very bad state, or condition. Once that happens, you can expect all kinds of symptoms to arise. Another symptom of a potential problem with the alternator is dim or flickering lights. A bad battery and a bad alternator will each give out signals. This will bypass the ignition switch and send full battery current directly to the solenoid. If you purchase a refurbished or re-manufactured alternator, it will cost between $200 and $500. The Voltage Regulator. ALTERNATOR TEST 1: Testing Battery Voltage With The Engine Running The very first thing you need to do is verify what the voltage of the battery is with the engine running. If the alternator's shot, and you drive the car around, it'll stop dead eventually. Why the continuity from positive post terminal to ground areas of motor and body of alternator. Circuit breakers are used on high amperage circuit’s wipers, defogger, power windows and power seats. Symptoms of a bad starter: Starter problems fall in several categories:. Revised 6-15-2015. The actual alternator cost itself could be anywhere from $100 – $500 dollars. A new battery should read approximately 12. A short is an electrical request for infinite energy, a very bad state, or condition. com : Car complaints, car problems and defect information. Rectified three phase is better because it provides a smoother DC. Let us start at what an alternator is, and for this purpose, we will turn ourselves to how Wikipedia describes it. Alternators have fixed quite a few idle issues. Unless you have an electric fan, the fan belt that drives the water pump also drives the fan. Got that replaced.