Alternators are designed to maintain a charge on the battery not recharge a once dead battery this puts heat and stress on a alternator and shortens its lifespan.
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Check to see if the alt is charging the battery. should be 13.6 volts if good load test the battery
If the battery is bad it will not hold a charge. Have your battery checked a the local parts house or your mechanic. Also have the charging and starting systems checked to insure they are working properly. Battery should have a reading of about 12.8 volts, alternator should be putting out between 13 and 14 volts. Starter should not draw to many amps.
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hey i want to know if any one can walk me through changeing my alternator on the isuzu, if its possible for me too
can anyone tell me where is the tensioner for the isuzu
hey i put the alternator in and the old one has four wires coming out of the battery lead to the alternator(excel) the new alternator has only two(hittachi) so i spliced the white w/blue strip to the same then the red w/white stripe to the green w/ white stripe, my quetion is should i be concerened with th black w/ yellow stripe and the all white wires. it starts up fine but it kinda drags so im concerened and thanx for all the help
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