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alternator (generator) problem. Could easily be the drive belt tension or a faulty alternator.
Having said that, the first thing to check would be the battery itself.
It can cause exactly this problem. Change in outdoor temp, moisture etc can just flatten a battery. Charge up the old one and see if it holds a charge. If it looks like it's leaking or corroded, put a new one in. If the same thing happens, check generator.
Batteries are strange things. work for years and years then one day...nothing. Can happen with new ones too, rare now, but still happens. Extreme changes in weather, low fluids (although most batteries are sealed now).
So......battery first (check fuses too) then if persists...generator.
Hope this helps.....good luck..
Has your alternator belt broken or alternator not charging the batteries? Check amps output from the alternator aswell it maybe undercharging them. Make sure all battery connections and earths are clean and their mounting points are clean. Is it the correct battery for the car?
You definitely have a problem with the charging system. As it is, the engine and other electricals are running your battery down. You need to put a voltmeter on the battery with the engine running to verify no charging. When the alternator is working and charging, the voltage will be about 14 volts, or somewhere between 13.5 volts and 14.5 volts. It may not even crank the engine over fast enough to start if your battery voltage is now under 12 volts. Then you would need a boost, but if alternator is not working, what charge you now have in your battery may be quickly depleted and the engine will shut down.
Test the alternator as I stated, or take it off and have it tested at a parts store.
either that cable going to the battery is shorted to ground somewhere (maybe on the body of the alternator) or the alternator is defective. there is a chance that you put one of the wires wrong on the alternator and you are forcing it into full field mode. that is a mode we use to test the full output of an alternator. if an alternator stays on full field too long (more than ten seconds) it could fail.
Have the system checked for more than .2 Amps draw in which case there is a short somewhere.
Also, check that the alternator is charging the battery by putting it on a starting/charging machine at Sears or Walmart or the parts store in your area (e.g. Autozone or Advance Auto Parts).
Find a friend with a heated garage that you can use first off, then locate the short that may be causing all this. Unless you have a bad battery? If its more than 3 years old, replace it. Batterys are cheap. WALMART has em under 89 bucks for most vehicles.
Hi first check the alternator belt (is it loose...is it there?) if all is ok there then it could be the alternator, have a multimetre put on it it should read around 13.5 if the alternator is doing its job, Hope this helps
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