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Can an alternator that has a built in voltage regulator show good when the regulator is bad?
Wiki User
∙ 11y ago
If the regulator is bad, the alternator would have a low charge or a high charge or no charge at all. With a good battery that is fully charged (12.68 volts) and the engine warmed up and idling with no accessories on, you should get a voltage reading at the battery of 14.2 v (plus or minus .2 v).
Wiki User
∙ 11y ago
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Where is the voltage regulator in a 1999 Mitsubishi Montero?
Voltage regulator is built into the Alternator/brush carrier. Requires removal and at least partial dis-assembly of the Alternator to change out. Good luck.
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Have you checked the fuses?AnswerMay be a bad voltage regulator. alternator is no good without a voltage regulator. that's what "turns on" the alternator.
Where is the voltage regulator located on a 91 Cherokee?
Probably built into the alternator. Pretty much gotta replace the alternator for this. Get a re-built one at a good parts store (Pepboys, etc.). Take your ald one along to trade in.
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If you know the alternator is good and wired correctly then take a hard look at the voltage regulator. If the voltage regulator is built into the alternator then look carefully at the battery cables. I would bet your problem is the battery. If it is out of warranty just replace it. A trip to your local Auto Parts store where they can check the entire system, is in order.If you know the alternator is good and wired correctly then take a hard look at the voltage regulator. If the voltage regulator is built into the alternator then look carefully at the battery cables. I would bet your problem is the battery. If it is out of warranty just replace it. A trip to your local Auto Parts store where they can check the entire system, is in order.
What would make my battery go dead after replacing it and the alternator?
The vehicle should ave a voltage regulator. If the battery and alternator are good then the regulator is most likely bad.
How do you replace the voltage regulator on a Volvo?
The voltage regulator in a Volvo alternator has been built into the alternator since the 70's. To replace it, you would have to remove the alternator and disassemble it. Then the regulator can be accessed. It is probably soldered in, so you will need a good soldering gun and the ability to de-solder and solder. It would be quicker and easier to replace the alternator assembly with a remanufactured unit. massvolvoman
On a 1990 Ford Probe GT 2.2L Turbo if your headlights and everything else purge at idle and driving is it the voltage regulator or the computer and were is the voltage regulator located at?
It is the Alternator. use a voltmeter an check if voltage with engine running is arrounnd 14v or more. than it s good. if voltage below 14 bad alternator.
Jeep Cherokee alternator doesn't charge battery alternator tests fine when not in vehicle?
check your fuses if they are good the voltage regulator is in the pcm eng computer
Battery not charging?
battery tests good, alternator tests good, new voltage regulator installed and still no charge to battery from altanator .
Where is the voltage regulator on a 1991 Toyota Corolla?
how will I know my Voltage regulator is bad. I have replaced the starter and had the battery and alternator checked they are good. My car will start when it is colder outside but as the day gets hotter it will not start.. Can you help
How do you know if voltage regulator is good?
Check voltage at the battery with car running, it should be well over 12 volts, also check alternator output.
What would cause the voltage gauge to keep flickering up and down?
Either a bad ground to the guage itself or a bad voltage regulator in the alternator. While the enigine is running check the voltage at the battery it should be around 13.5volts if it constantly fluctuates then the voltage regulator is probably bad. Replace the alternator. Otherwise make sure your grounds are good.
