Voltage regulators are often built into the alternators now, this wasn't always the case. Older vehicles had separate voltage regulators mounted on firewalls or the side of the engine compartment, wired in between from the alternator to the battery. The positive lead now goes directly to the battery from the alternator/regulator.
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.
No, because it is built into the alternator.
Yes. It's inside the alternator and is replaceable without alternator disassembly. Remove two screws and the voltage regulator will pull out.
yes just use a torx socket to remove the 6 screws holding the regulator / brushbox unit secured to the alternator... remove electrical connections to the regulator first...easy!
Usually a bad alternator or regulator. Many auto parts retailers will test the charging system without charging you.
Modern alternators almost always have their voltage regulator attached to the back of the alternator itself. Most often it is combined with the brush holder so you could say it's "built in", however that is not strictly true as it is removable without dissasembly of the entire alternator. Unless I am mistaken the Montero alternator is of this design. You should NOT expect to find an external voltage regulator anywhere on one of these vehicles. Hope this helped.
Going on the 3.0 L 4 wheel drive model the alternator is actually removable without removing the axle or lifting the engine as I've read over and over. Remove the bolts on the alternator. Remove the belt. You will likely have to remove the belt assembly in front of the lower mounting bolt. Remove the two connecting wires and viola, easily lifted out. Brush change is the likely option to fix the regulator. If the voltage regulator is at fault, apparently this isn't servicable and the whole unit will have to be replaced.
Check the alternator out put with a voltmeter A fully charged battery should read approx. 12.8 volts without engine running With engine running reading should be 13.8-14.2 volts XXXXXXXXXXXXXXXXXXXX ANSWER XXXXXXXXXXXXXXXXX The voltage regulator is built into the alternator. In some cases it is cheaper to replace the alternator.
i presume you are talking about the rectifier regulator and the answer is no it would not charge a battery without this if you don't know what the part is i dought you will be able to know what is wrong with your alternator you could have winding problems or brush problems also
It doesn't actually drain the battery, but without a working alternator to recharge the battery it will only discharge as the car is operated.
If the alternator is not charging the battery, then it will eventually go dead If the voltage regulator (in the alternator) is defective it will eventually kill the battery Check the alternator with a voltmeter A fully charged battery (without engine running) should read approx. 12.8 volts With engine running should read 13.8-14.2 volts
Best guess without actually touching the vehicle would be the voltage regulator. on most cars this is part of the alternator. I would start by checking the voltage on the battery while the car is idling and while running ~2000 rpm