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Normal voltage will be in the 13.5 to 15 volt range engine running turning about 2,000 rpms. It shouldn't exceed 16 volts or it will boil your battery. If it does not run in this range then you need to replace the voltage regulator. These days that is usually done by replacing the whole alternator as a unit. It is usually the most cost effective method of repair.
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Why would your battery light stay on after you have put in a new battery and alternator?
The battery light comes on when the alternator output voltage is too low or too high. You have a wiring or regulator problem.The battery light comes on when the alternator output voltage is too low or too high. You have a wiring or regulator problem.
Your volt meter reads 16 volts at the battery at idle The alternator and voltage regulator have been replaced Do you have a problem?
Alternator Output Voltage RangeGenerally, alternator output voltage is consider OK if it is in the range between 12 1/2 volts to a maximum of 16 volts.Therefore, although the output is at the maximum, you do not seem to have a problem.Usually, if the battery has had a lot of drain, then the alternator output will run at the maximum until the battery is fully charged.
What is the function of the regulator in an alternator?
To control the alternator's output voltage under varying loads.In simple terms it regulates the voltage being sent to the battery.
What is the voltage output on a 2000 ford windstar?
Normal voltage, checking at the battery or alternator should be in the 14 range.
How does an alternator know how much voltage output?
Output of the alternator is controlled by the voltage regulator.
Why does the battery light come on when you accelerate?
The alternator may not be able to keep up to the voltage requirement of the vehicle check voltage output of alternator w/mechanical gauge
Will a 2002 chrysler voyager still run if you take the battery cables off?
Maybe. The engine computer is the voltage regulator, with the battery disconnected it may not be able to control the alternator output voltage correctly. This could cause it to go low or high.Maybe. The engine computer is the voltage regulator, with the battery disconnected it may not be able to control the alternator output voltage correctly. This could cause it to go low or high.
What is a 2007 Trailblazer alternator output voltage?
The alternator output voltage in most modern 12 volt automotive systems ranges from 13.5V to 14.5V, with the nominally accepted value being 13.8V. The actual voltage depends on battery charge state and temperature.
How do you get a battery light to go out in my 1989 mercury topaz?
The battery light is for low alternator output voltage. Try testing the alternator output using a miltimeter and if its less than 13 volts your alternator isn't putting out what it should. If it has low output check the belt tension and all wire connections before replacing alternator
What should the output of an automobile alternator be?
Alternator Output Voltage RangeGenerally, an automotive alternator is considered to be "good" if the output voltage is in the range between 12 1/2 volts and a maximum of 16 volts.Anything below 12 1/2 volts probably will not adequately charge the battery, and voltages above 16 volts can "cook" the water out of the electrolyte, and cause damage to the battery.
Will a diesel engine run with battery cable disconnected if the alternator is bad?
A vehicle may not run if the battery cables are disconnected with or without a bad alternator. The best way to test an alternator is by voltage output when applying a load.
2003 ford escape battery light stays on you just replaced the battery?
The battery light can come on due to a low charging voltage. Check the alternator for full output, and make sure that the alternator belt is not slipping.
