I just replaced the alternator on my '94 amigo it worked for a few days and now it does not want to hold a charge. the battery is new the belt is new and it is not lose. what could be the problem?
2007-06-08 12:49:48 · 3 answers · asked by Anonymous in Cars & Transportation ➔ Maintenance & Repairs
The alternator probably didn't work at all. The batter just lasted a few days. You shouldn't be touching the alternator unless you have a voltmeter and know how to use it. Quit replacing things on a guess.
2007-06-08 14:29:36 · answer #1 · answered by Nomadd 7 · 0⤊ 0⤋
Here is the test procedure for determining battery or alternator problem after requiring a jump start. Note, requires a voltmeter [$3.50 at Harbor Freight]
1] Check battery voltage on non-start vehicle. Will probably be under 12V. Verify good clean connections, look for cracked corroded or loose terminals.
2] Jump start. Note, always have the the jumper vehicle running when performing a jump start, sounds basic but I actually had a friend who argued it should not, meaning he would be jumping with less voltage & could strand both vehicles.
3] With jumper cables removed, check voltage at battery. It should be 12.8V to 13.4V. If below 12.8V the alternator or voltage regulator are suspect. If in the range, the battery is either dead, low on water or in need of a full charge. If over 13.4V the voltage regulator is not functioning properly.
4] Failing those problems, with the vehicle shut off & the doors closed, disconnect the battery ground cable, put a 12V test light between the battery negative & a known good ground. If it lights, something, like an interior or glovebox lamp is staying on.
Take your time, be methodical & good luck!
I was an ASE certified Technician & GNB Battery, customer service rep.
2007-06-08 20:13:01 · answer #2 · answered by Anonymous · 0⤊ 0⤋
either it is a bad alternator it does happen or maybe your battery termanel ends are either bad or dirty
2007-06-08 19:59:41 · answer #3 · answered by slp9209 4 · 0⤊ 0⤋