Alternators
Car Batteries

What causes the battery and brake light to come on when the alternator connector is plug in and it will go out when it is disconnected and sometimes with it connected it will kill the battery?

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2006-04-18 03:18:57
2006-04-18 03:18:57

Its a good possibility Your diodes are burnt out, its time to replace your alternator, i had a similar problem on a 95 lumina with a 3.1l motor

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I have a 92 Pontiac and also had similar situation. Sometimes the voltmeter would go to 14volts and other times it would sit at 12volts. When I tested output from alternator to the battery with voltmeter, I did not get a good reading. Upon removal of the alternator to get it replaced, I noticed that the smaller (red) cable that goes from the alternator to the battery was loose in the connector itself. I cut the cable at the connector, stripped the cable some and crimped on a new connector. Reattached to alternator and put alternator back into vehicle. All has been fine since. Hope this may fix your problem.

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sounds like you need to replace the battery. even new batterys sometimes are no good also an alternator tested when disconnected means it is tested with no load. this really means that the test was a waste of time

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A Berg connector is used for providing power to floppy drives and sometimes other peripherals.

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Sometimes, but not always, the alternator will whine loudly when it's malfunctioning.

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The usual cause of a blown alternator is overload. The alternator will also blow if the battery is connected backwards, even for an instant, such as during jumping. Sometimes, overload is caused by attempting to jump start another car while revving the engine of the first car. The alternator is not designed to carry the current of a starter. Depending on the alternator, protection might be built in, but don't count on it. Rev the engine only to help charge the other battery, and then let the engine idle while starting the other.

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yes... sometimes called a generator.

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It can sometimes be caused by a failed alternator.

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It's under the bonnet by the blower, it has a push and slide connector and sometimes a other 2 wire connector.

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check the alternator fuse on the main cable that goes from the alternator to the battery. sometimes the alternator shorts out this fuse. it's usually mounted on the right side of the firewall in a plastic cover over .

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It is probably a bad voltage regulator. Sometimes they are located in the alternator and can go bad in a new one. On Ford vehicle the voltage regulator is separate from the alternator.

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What component are you referring to? Alternator themselves do not have solenoids. Starters have solenoids, and sometimes ignition circuits will utilize solenoids.

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disconnect neg. battery cable. remove bolt, unplug one connector, remove one 13mm nut and remove wires, remove two bolts upper and lower, and its out, sometimes you have to wiggle bottom back and forth to free up.

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This can sometimes be caused by a bad cable or connector.

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The battery cable that is grounded, is connected to the body of the vehicle. Sometimes it is the negative cable & sometimes it is the positive. You need to check which cable is connected to the body of the vehicle.

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Sometimes an alternator with a weak diode(s)can test out fine, but can still trigger the light. I believe the problem is in your alternator. Good luck.

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Aggression, self-injury, and mood disorders are sometimes associated with the disability.

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No, 92 and sometimes 93, but not 88-91

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Generally you don't tighten the alternator, you just make sure the belt tensioner is functioning properly. Sometimes the springs of the tensioner wears out or breaks.

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weak or faulty battery, faulty alternator (or slipping alternator belt causing battery not to charge) or faulty starter motor

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Sometimes the bearings go out sometimes they short out and sometimes they overheat and fry. The only thing you can control is overheating, usually caused by overloading from high power stereos

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I suspect that you have a bad contact on your speed sensor connector in your transmission. Check connector underneath the car on the driver side, if connector is clean you might need to replace the sensor ( electrical pulse generator ) that's where you plug in the connector...

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Sometimes when parts are new, they have coatings and etc. that will smell when parts are warm. For example, alternator windings are coated with a electrical varnish. When the alternator is charging, it creates heat. This causes the paint to smell and odors such as a burning smell can be common for a couple of days.

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First, disconnect the battery cables, Second, you have to drain some or all the coolant so you can remove the upper radiator hose, Third, disconnect the alternator cables, Fourth, loosen the bolt attaching the alternator so you can loosen the alternator belt, Finally, remove the bolt and angle the alternator to remove it. You might need to hammer the alternator from underneath, sometimes they are really tight. 'Hope this helps.


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