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Do bad spark plugs have to do with charging the alternator?
Spark Plugs do not affect your alternator. As long as your engine is running then it should be charging unless your alternator is bad
What will make the charging system come on on a 2000 Mercury Cougar?
The charging system is the alternator which is on and functioning anytime the engine is running. If not, then you have a problem with the alternator.
Why is your 1988 Chevrolet truck with a 305 engine running of the battery only and not the alternator?
If it is running on the battery only then that means the alternator is not charging the battery.
Can a car's alternator charge the battery while the car is not running?
No. The alternator has to be turning to produce the charging voltage. It only turns when the engine is running.
Can a loose positive battery cable prevent the alternator from charging the batter and can it cause a battery drain while the engine is not running?
Yes, a loose battery cable will prevent the alternator from charging the battery. The drain on the battery is not caused by the engine not running unless an accessory is left on. Most likely, the drain is caused by accessories (radio, lights, etc) while the engine is running due to the battery not receiving its charge from the alternator and then not having enough charge left to start the engine.
Could a bad coil keep the alternator from charging the battery?
Yes, because a bad coil will not allow the engine to run. But if the engine is running then the coil has nothing to do with the alternator charging the battery.
Why alternator charging low and battery dead after a while running?
If the alternator is not producing 13.5 to 15.5 volts it is defective and needs replacing.
Why 1988 Dodge truck stopped running has new battery?
bad alternator ? its not charging the battery
1999 Ford Expedition battery light on?
The battery light indicates the system is not charging. Have the charging system checked. If the alternator is not charging, the engine will quit running and leave you stranded.
1992 Lumina no alternator output?
A quick way to check alternator on any vehicle is while engine is running,carefully touch a screwdriver to the spinning part (armature) of the alternator. If it is magnatized, it is charging. If not then alternator is not charging. The voltage regulator (the thingy that tell the alternator to charge) is built into the alternator. Replace the whole thing with a rebuilt unit.
Why is the car battery charging at 14 volts running and 13.5 not running?
your alternator charges the battery while the car is running. The alternator actually puts out a higher voltage than 14 volts while it is running, but it is reduced by a voltage regulator (most of which are already built into the alternator housing), to prevent damage and premature death of the vehicles battery. While your car is not running, the alternator is not charging the battery, and the 13.5 volt reading you get is just the measurement of the voltage the battery is holding at that given point.
Why does it take about 45 minutes of running to drain battery after a new alternator has been installed on my 96 Geo Tracker?
Alternator not charging battery due to a bad fusable link?
